[Assignment-7] fixed README.md

- Intermediary is fully functional
- Proxy is ready until invocation of enclave

.gitignore

@@ -24,7 +24,6 @@ dist/
 downloads/
 eggs/
 .eggs/
-lib/
 lib64/
 parts/
 sdist/

7-SGX_Hands-on/LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

7-SGX_Hands-on/README.md

@@ -0,0 +1,75 @@
+# Signature Relay for firmware
+
+Documentation of the Assignment 7 in Systems Security at Ruhr-Universität Bochum.
+This is a program, that uses a TEE to build a signature relay to sign firmware with a master key.
+For more informationm, read the [project description](doc/abgabe.pdf).
+
+We recommend viewing the [repository](https://git.pfzetto.de/RubNoobs/Systemsicherheit/src/branch/master/Assignment 7 - SGX Hands-on) we worked on together at.
+
+## Requirements
+
+You will need the latest version of OpenSSL.
+Execute the following command inside the  src directory to automatically meet all requirements. 
+
+```bash
+$ ./setup
+```
+
+
+## Compiling
+
+This project can be compiled for simulation environments or directly on the hardware.
+
+1. **Simulated environment**
+
+In the src directory type the command
+
+```bash
+$ make SGX_MODE=SIM
+```
+
+2. **Hardware**
+
+In the src directory type the command
+
+```bash
+$ make
+```
+
+That creates all the necessary objects and binaries to execute. 
+The executable binary will be `src/signatureproxy`.
+
+## Running
+
+## Running story
+
+To execute an example usage of the project, execute `./simulate` in src directory. 
+Note, that this will only work, if you sucessfully compiled the project.
+
+## Manual Usage
+
+### Setup
+
+Go to the `src` directory.
+
+Initialize the Enclave keypair by executing:
+`./signatureproxy proxysetup -pkey <sealed_proxy_key.bin> > <proxy_public_key.pem>` 
+
+### Sign
+1. Create employee signature using `./signatureproxy employee -firm <firmware.bin> -ekey <employee_privat_key.pem> > <employee_signature.der>`
+   This step can also be done using OpenSSL: `openssl dgst -sha256 -sign <employee_private_key.pem> -out <employee_signature.der> -in <firmware.bin>`
+2. Use the signature proxy to resign the firmware using `./signatureproxy proxy -pkey <sealed_proxy_key.bin> -epub <employee_public_key.der> -firm <firmware.bin> > <proxy_signature.der>`
+   The enclave verifies the employee signature and signs the firmware if the signature is valid.
+3. Verify signature using `cat <proxy_signature.der> | ./signatureproxy embedded -firm <firmware.bin> -ppub <proxy_public_key.pem>` 
+   This step can also be done using OpenSSL: `openssl dgst -sha256 -verify <proxy_public_key.pem> -signature <proxy-signature.der> <firmware.bin>`
+
+
+## License
+
+Everything we did ourselves is licensed under the [GNU GPLv3 License](./LICENSE)
+
+## Contributors
+
+- Benjamin Haschka
+- Sascha Tommasone
+- Paul Zinselmeyer

7-SGX_Hands-on/employee_keys/alice_private.pem

@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIH0KXxaw/nRzJU5evlEJQrciYUtfJ16PILWtlA5KKh/koAoGCCqGSM49
+AwEHoUQDQgAEduVQXmH1K+ocSSnv0l9PKdC2+xxPQrVyABAYGk+jlo2hugpH8aWk
+nfR9cTTOLy6T7ASx3a22S6DftcTz+aZYsg==
+-----END EC PRIVATE KEY-----

7-SGX_Hands-on/employee_keys/alice_public.pem

@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEduVQXmH1K+ocSSnv0l9PKdC2+xxP
+QrVyABAYGk+jlo2hugpH8aWknfR9cTTOLy6T7ASx3a22S6DftcTz+aZYsg==
+-----END PUBLIC KEY-----

7-SGX_Hands-on/employee_keys/bob_private.pem

@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEICV85UuIaBKQ9yisKQne4i4E3HjB4KysQdqnhnrX8LtLoAoGCCqGSM49
+AwEHoUQDQgAE7iz5LravULyrYQgu9rIX7iyUQdi7GTJ63Af/DlIrcpy7UbpWdh0O
+h5LGlfaMgQ4pq9ORF8+K3LCUYMqUtS+EjA==
+-----END EC PRIVATE KEY-----

7-SGX_Hands-on/employee_keys/bob_public.pem

@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE7iz5LravULyrYQgu9rIX7iyUQdi7
+GTJ63Af/DlIrcpy7UbpWdh0Oh5LGlfaMgQ4pq9ORF8+K3LCUYMqUtS+EjA==
+-----END PUBLIC KEY-----

7-SGX_Hands-on/employee_keys/oskar_private.pem

@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEINtBCS3yRqZNxO+RPdV2618QVDfhqmXheAQ9G3hMmxLyoAoGCCqGSM49
+AwEHoUQDQgAEzkxblxb/svE5kta/IdNs0NQgDk7CO5nBs/LVeiJDz2iiFwERK6u7
+oNj36jvwppi3jFmHp7nFNZEzim45DcY7vA==
+-----END EC PRIVATE KEY-----

7-SGX_Hands-on/employee_keys/oskar_public.pem

@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEzkxblxb/svE5kta/IdNs0NQgDk7C
+O5nBs/LVeiJDz2iiFwERK6u7oNj36jvwppi3jFmHp7nFNZEzim45DcY7vA==
+-----END PUBLIC KEY-----

7-SGX_Hands-on/flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1719838683,
+        "narHash": "sha256-Zw9rQjHz1ilNIimEXFeVa1ERNRBF8DoXDhLAZq5B4pE=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "d032c1a6dfad4eedec7e35e91986becc699d7d69",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-24.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

7-SGX_Hands-on/flake.nix

@@ -0,0 +1,50 @@
+{
+    description = "SignatureProxy SGX Demo";
+    inputs = {
+        nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
+    };
+
+    outputs = { self, nixpkgs, ... }: 
+    let
+        lastModifiedDate = self.lastModifiedDate or self.lastModified or "19700101";
+        version = builtins.substring 0 8 lastModifiedDate;
+
+        nixpkgsFor = system: import nixpkgs { inherit system; overlays = [ self.overlay ]; };
+    in
+    {
+        overlay = final: prev: with final; {
+            signatureProxy = stdenv.mkDerivation {
+                pname = "SignatureProxy";
+                inherit version;
+
+                src = ./src;
+
+                buildPhase = ''
+                    make
+                '';
+
+                installPhase = ''
+                    mkdir -p $out/bin
+                    cp signatureproxy $out/bin
+                    cp enclave.signed.so $out/bin
+                '';
+
+                nativeBuildInputs = with pkgs; [
+                    clang
+                    glibc
+                    sgx-sdk
+                    openssl.dev
+                    pkg-config
+                    which
+                ];
+
+                env = {
+                    SGX_SDK = pkgs.sgx-sdk;
+                    SGX_MODE = "SIM";
+                };
+            };
+        };
+
+        defaultPackage."x86_64-linux" = (nixpkgsFor "x86_64-linux").signatureProxy;
+    };
+}

7-SGX_Hands-on/src/Makefile

@@ -38,7 +38,7 @@ SGX_DEBUG ?= 1
 
 ifeq ($(shell getconf LONG_BIT), 32)
 	SGX_ARCH := x86
-else ifeq ($(findstring -m32, $(CXXFLAGS)), -m32)
+else ifeq ($(findstring -m32, $(CCFLAGS)), -m32)
 	SGX_ARCH := x86
 endif
 
@@ -74,8 +74,8 @@ else
 	Urts_Library_Name := sgx_urts
 endif
 
-App_Cpp_Files := App/App.cpp
+App_C_Files := app/main.c app/proxy.c app/proxysetup.c app/employee.c app/util.c app/embedded_device.c
-App_Include_Paths := -IInclude -IApp -I$(SGX_SDK)/include
+App_Include_Paths := -IInclude -Iapp -I$(SGX_SDK)/include -I/usr/local/openssl-3.3.1/include
 
 App_C_Flags := $(SGX_COMMON_CFLAGS) -fPIC -Wno-attributes $(App_Include_Paths)
 
@@ -91,8 +91,8 @@ else
         App_C_Flags += -DNDEBUG -UEDEBUG -UDEBUG
 endif
 
-App_Cpp_Flags := $(App_C_Flags) -std=c++11
+OPENSSL := -Wl,-Bstatic -L/usr/local/openssl-3.3.1/lib64 -lssl -lcrypto -Wl,-Bdynamic -ldl
-App_Link_Flags := $(SGX_COMMON_CFLAGS) -L$(SGX_LIBRARY_PATH) -l$(Urts_Library_Name) -lpthread 
+App_Link_Flags := $(SGX_COMMON_CFLAGS) -L$(SGX_LIBRARY_PATH) -l$(Urts_Library_Name) -lpthread -lsgx_urts $(OPENSSL)
 
 ifneq ($(SGX_MODE), HW)
 	App_Link_Flags += -lsgx_uae_service_sim
@@ -100,9 +100,10 @@ else
 	App_Link_Flags += -lsgx_uae_service
 endif
 
-App_Cpp_Objects := $(App_Cpp_Files:.cpp=.o)
+App_C_Objects := $(App_C_Files:.c=.o)
+
+App_Name := signatureproxy
 
-App_Name := app
 
 ######## Enclave Settings ########
 
@@ -115,8 +116,8 @@ else
 endif
 Crypto_Library_Name := sgx_tcrypto
 
-Enclave_Cpp_Files := Enclave/Enclave.cpp
+Enclave_C_Files := enclave/enclave.c
-Enclave_Include_Paths := -IInclude -IEnclave -I$(SGX_SDK)/include -I$(SGX_SDK)/include/tlibc -I$(SGX_SDK)/include/libcxx
+Enclave_Include_Paths := -IInclude -Ienclave -I$(SGX_SDK)/include -I$(SGX_SDK)/include/tlibc -I$(SGX_SDK)/include/libcxx
 
 CC_BELOW_4_9 := $(shell expr "`$(CC) -dumpversion`" \< "4.9")
 ifeq ($(CC_BELOW_4_9), 1)
@@ -126,7 +127,7 @@ else
 endif
 
 Enclave_C_Flags += $(Enclave_Include_Paths)
-Enclave_Cpp_Flags := $(Enclave_C_Flags) -std=c++11 -nostdinc++
+
 
 # To generate a proper enclave, it is recommended to follow below guideline to link the trusted libraries:
 #    1. Link sgx_trts with the `--whole-archive' and `--no-whole-archive' options,
@@ -141,13 +142,13 @@ Enclave_Link_Flags := $(SGX_COMMON_CFLAGS) -Wl,--no-undefined -nostdlib -nodefau
 	-Wl,-Bstatic -Wl,-Bsymbolic -Wl,--no-undefined \
 	-Wl,-pie,-eenclave_entry -Wl,--export-dynamic  \
 	-Wl,--defsym,__ImageBase=0 -Wl,--gc-sections   \
-	-Wl,--version-script=Enclave/Enclave.lds
+	-Wl,--version-script=enclave/enclave.lds \
 
-Enclave_Cpp_Objects := $(Enclave_Cpp_Files:.cpp=.o)
+Enclave_C_Objects := $(Enclave_C_Files:.c=.o)
 
 Enclave_Name := enclave.so
 Signed_Enclave_Name := enclave.signed.so
-Enclave_Config_File := Enclave/Enclave.config.xml
+Enclave_Config_File := enclave/enclave.config.xml
 
 ifeq ($(SGX_MODE), HW)
 ifeq ($(SGX_DEBUG), 1)
@@ -167,7 +168,6 @@ else
 endif
 endif
 
-
 .PHONY: all run
 
 ifeq ($(Build_Mode), HW_RELEASE)
@@ -201,49 +201,49 @@ endif
 
 ######## App Objects ########
 
-App/Enclave_u.c: $(SGX_EDGER8R) Enclave/Enclave.edl
+app/enclave_u.c: $(SGX_EDGER8R) enclave/enclave.edl
-	@cd App && $(SGX_EDGER8R) --untrusted ../Enclave/Enclave.edl --search-path ../Enclave --search-path $(SGX_SDK)/include
+	@cd app && $(SGX_EDGER8R) --untrusted ../enclave/enclave.edl --search-path ../enclave --search-path $(SGX_SDK)/include
 	@echo "GEN  =>  $@"
 
-App/Enclave_u.o: App/Enclave_u.c
+app/enclave_u.o: app/enclave_u.c
 	@$(CC) $(App_C_Flags) -c $< -o $@
 	@echo "CC   <=  $<"
 
-App/%.o: App/%.cpp
+app/%.o: app/%.c
-	@$(CXX) $(App_Cpp_Flags) -c $< -o $@
+	@$(CC) $(App_C_Flags) -c $< -o $@
-	@echo "CXX  <=  $<"
+	@echo "CC  <=  $<"
 
-$(App_Name): App/Enclave_u.o $(App_Cpp_Objects)
+$(App_Name): app/enclave_u.o $(App_C_Objects)
-	@$(CXX) $^ -o $@ $(App_Link_Flags)
+	@$(CC) $^ -o $@ $(App_Link_Flags)
 	@echo "LINK =>  $@"
 
 .config_$(Build_Mode)_$(SGX_ARCH):
-	@rm -f .config_* $(App_Name) $(Enclave_Name) $(Signed_Enclave_Name) $(App_Cpp_Objects) App/Enclave_u.* $(Enclave_Cpp_Objects) Enclave/Enclave_t.*
+	@rm -f .config_* $(App_Name) $(Enclave_Name) $(Signed_Enclave_Name) $(App_C_Objects) app/enclave_u.* $(Enclave_C_Objects) enclave/enclave_t.*
 	@touch .config_$(Build_Mode)_$(SGX_ARCH)
 
 ######## Enclave Objects ########
 
-Enclave/Enclave_t.c: $(SGX_EDGER8R) Enclave/Enclave.edl
+enclave/enclave_t.c: $(SGX_EDGER8R) enclave/enclave.edl
-	@cd Enclave && $(SGX_EDGER8R) --trusted ../Enclave/Enclave.edl --search-path ../Enclave --search-path $(SGX_SDK)/include
+	@cd enclave && $(SGX_EDGER8R) --trusted ../enclave/enclave.edl --search-path ../enclave --search-path $(SGX_SDK)/include
 	@echo "GEN  =>  $@"
 
-Enclave/Enclave_t.o: Enclave/Enclave_t.c
+enclave/enclave_t.o: enclave/enclave_t.c
 	@$(CC) $(Enclave_C_Flags) -c $< -o $@
 	@echo "CC   <=  $<"
 
-Enclave/%.o: Enclave/%.cpp
+enclave/%.o: enclave/%.c
-	@$(CXX) $(Enclave_Cpp_Flags) -c $< -o $@
+	@$(CC) $(Enclave_C_Flags) -c $< -o $@
-	@echo "CXX  <=  $<"
+	@echo "CC  <=  $<"
 
-$(Enclave_Name): Enclave/Enclave_t.o $(Enclave_Cpp_Objects)
+$(Enclave_Name): enclave/enclave_t.o $(Enclave_C_Objects)
-	@$(CXX) $^ -o $@ $(Enclave_Link_Flags)
+	@$(CC) $^ -o $@ $(Enclave_Link_Flags)
 	@echo "LINK =>  $@"
 
 $(Signed_Enclave_Name): $(Enclave_Name)
-	@$(SGX_ENCLAVE_SIGNER) sign -key Enclave/Enclave_private.pem -enclave $(Enclave_Name) -out $@ -config $(Enclave_Config_File)
+	@$(SGX_ENCLAVE_SIGNER) sign -key enclave/enclave_private.pem -enclave $(Enclave_Name) -out $@ -config $(Enclave_Config_File)
 	@echo "SIGN =>  $@"
 
 .PHONY: clean
 
 clean:
-	@rm -f .config_* $(App_Name) $(Enclave_Name) $(Signed_Enclave_Name) $(App_Cpp_Objects) App/Enclave_u.* $(Enclave_Cpp_Objects) Enclave/Enclave_t.*
+	@rm -f .config_* $(App_Name) $(Enclave_Name) $(Signed_Enclave_Name) $(App_C_Objects) app/enclave_u.* $(Enclave_C_Objects) enclave/enclave_t.*

7-SGX_Hands-on/src/app/embedded_device.c

@@ -0,0 +1,143 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "util.h"
+
+#include <openssl/sha.h>
+#include <openssl/ec.h>
+#include <openssl/bn.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/pem.h>
+#include <openssl/core_names.h>
+
+#include "embedded_device.h"
+
+#define BUFSIZE 16384
+
+typedef struct {
+    uint8_t *firmware_path;
+    uint8_t *public_key_path;
+} embedded_device_args;
+
+char *embedded_device_syntax(void) {
+    return
+        "embedded            mock up implementation of a embedded device\n"
+        "    -ppub  <path>   file path of the PEM encoded public key of the proxy\n"
+        "    -firm  <path>   path of to firmware binary\n";
+}
+
+/*
+ * read secp256r1 public key and return it as EVP_PKEY*
+ */
+static EVP_PKEY *read_public_key(char *public_key_file_path, EVP_PKEY **key) {
+    if(public_key_file_path == NULL) {
+        fprintf(stderr, "public_key_file_path is a null pointer!\n");
+        return NULL;
+    }
+
+    FILE *fd = fopen(public_key_file_path, "rb");
+    if(fd == NULL) {
+        fprintf(stderr, "failed to open public key file!\n");
+        return NULL;
+    }
+
+    *key = PEM_read_PUBKEY(fd, key, NULL, NULL);
+    fclose(fd);
+
+    return *key;
+}
+
+/*
+ * hash the firmware
+ */
+static void hash_firmware(uint8_t *firmware_path, EVP_MD_CTX **ctx) {
+    if(firmware_path == NULL) {
+        fprintf(stderr, "firmware_path is a null pointer!\n");
+        return;
+    }
+
+    FILE *fd = fopen(firmware_path, "rb");
+    if(fd == NULL) {
+        fprintf(stderr, "failed to open firmware!\n");
+        goto exit;
+    }
+
+    size_t size;
+    uint8_t buf[BUFSIZE];
+    while((size = fread(buf, 1, BUFSIZE, fd)) != 0) {
+        EVP_DigestVerifyUpdate(*ctx, buf, size);
+    }
+    
+    exit: fclose(fd);
+}
+
+int handle_embedded_device(int argc, char **argv) {
+    uint8_t status = EXIT_SUCCESS;
+    embedded_device_args args = {
+        .firmware_path = NULL,
+        .public_key_path = NULL
+    };
+
+    // parse parameters
+    for(int i = 0; i < argc; i += 2) {
+        if((strcmp(argv[i], "-ppub") == 0) && (argc - i >= 2)) {
+            args.public_key_path = argv[i+1];
+        } else if((strcmp(argv[i], "-firm") == 0) && (argc - i >= 2)) {
+            args.firmware_path = argv[i+1];
+        } else {
+            syntax_exit();
+        }
+    }
+
+    // handle invalid parameters
+    if((args.firmware_path == NULL) || (args.public_key_path == NULL)) {
+        fprintf(stderr, "failed to parse arguments");
+        exit(EXIT_FAILURE);
+    }
+
+    // read the public key of the enclave
+    // normally, key would be hardcoded during production
+    EVP_PKEY *key = NULL;
+    if(read_public_key(args.public_key_path, &key) == NULL) {
+        fprintf(stderr, "failed to import public key");
+        status = EXIT_FAILURE;
+        goto clean;
+    }
+
+    // initialize the context
+    EVP_MD_CTX *ctx = EVP_MD_CTX_new();
+    if (EVP_DigestVerifyInit(ctx, NULL, EVP_sha256(), NULL, key) != 1) {
+        fprintf(stderr, "failed to initialize context\n");
+        status = EXIT_FAILURE;
+        goto clean;
+    }
+
+    // read the firmwares signature
+    uint8_t signature[BUFSIZE] = {0};
+    size_t signature_size = read(0, signature, BUFSIZE);
+    if(signature_size < 70) {
+        fprintf(stderr, "failed to read firmware signature\n");
+        status = EXIT_FAILURE;
+        goto clean;
+    }
+
+    // hash the firmware and verify the signature
+    hash_firmware(args.firmware_path, &ctx);
+    if (EVP_DigestVerifyFinal(ctx, signature, signature_size) != 1) {
+        fprintf(stderr, "failed to verify firmware signature or signature invalid\n");
+        status = EXIT_FAILURE;
+    }else {
+        printf("Firmware is valid! Update starts in 5 4 3...\n");
+    }
+
+    // cleanup
+    clean: ;
+    if(key != NULL)
+        EVP_PKEY_free(key);
+    if(ctx != NULL)
+        EVP_MD_CTX_free(ctx);
+
+    return status;
+}

7-SGX_Hands-on/src/app/embedded_device.h

@@ -0,0 +1,23 @@
+#ifndef EMBEDDED_DEVICE_H
+#define EMBEDDED_DEVICE_H
+
+#include <stdint.h>
+
+/*
+ * @brief getter for embedded subcommand syntax string
+ *
+ * @returns null-terminated syntax string
+ */
+char *embedded_device_syntax(void);
+
+/*
+ * @brief CLI implementation for the "embedded" subcommand
+ *
+ * @param argc number of arguments with command and subcommand stripped
+ * @param argv arguments with command and subcommand stripped
+ *
+ * @returns 0 on success, else error with output on stderr
+ */
+int handle_embedded_device(int argc, char **argv);
+
+#endif

7-SGX_Hands-on/src/app/employee.c

@@ -0,0 +1,135 @@
+#include <errno.h>
+#include <sgx_urts.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "employee.h"
+#include "util.h"
+
+#include <openssl/core_names.h>
+#include <openssl/evp.h>
+#include <openssl/pem.h>
+
+#define HASH_BYTES 32
+#define HASH_CHUNK_BYTES 32
+#define KEY_BYTES 32
+
+struct EmployeeArgs {
+    char* key_path;
+    char* firmware_path;
+};
+
+char* employee_syntax(void) {
+    return
+        "employee            mock up implementation of the employee binary\n"
+        "                    outputs signature on stdout\n"
+        "                    WARNING: output is in binary format, may mess up terminal\n"
+        "    -ekey <path>    file path of the PEM encoded private key of the employee\n"
+        "    -firm <path>    path of the firmware\n";
+}
+
+int handle_employee(int argc, char** argv) {
+    struct EmployeeArgs args = {
+        NULL,
+        NULL
+    };
+    FILE* key_file = NULL;
+    uint8_t* firmware_buf;
+    size_t firmware_len;
+    EVP_PKEY* key = NULL;
+    EVP_MD_CTX *mdctx = NULL;
+    size_t sig_len;
+    unsigned char* sig = NULL;
+
+    /*
+     * Parse Input
+     */
+
+    int i = 0;
+    while(i < argc) {
+        if(strcmp(argv[i], "-ekey")==0 && argc-i >=2){
+            args.key_path = argv[i+1];
+            i += 2;
+        }else if(strcmp(argv[i], "-firm")==0 && argc-i >=2){
+            args.firmware_path = argv[i+1];
+            i += 2;
+        }else
+            syntax_exit();
+    }
+
+    if(args.key_path == NULL)
+        syntax_exit();
+
+    /*
+     * Load Signing Key
+     */
+
+    key_file = fopen(args.key_path, "rb");
+    if(key_file == NULL){
+        perror("Error opening key file");
+        exit (EXIT_FAILURE);
+    }
+    key = PEM_read_PrivateKey(key_file, &key, NULL, NULL);
+    if(key == NULL) {
+        fprintf(stderr, "failed to read key\n");
+        exit (EXIT_FAILURE);
+    }
+
+    fclose(key_file);
+
+    /*
+     * Sign Firmware
+     */
+
+    mdctx = EVP_MD_CTX_new();
+    if (EVP_DigestSignInit(mdctx, NULL, EVP_sha256(), NULL, key) != 1) {
+        fprintf(stderr, "Message digest initialization failed.\n");
+        exit (EXIT_FAILURE);
+    }
+
+    if (load_file(args.firmware_path, &firmware_buf, &firmware_len) != 0) {
+        fprintf(stderr, "failed to read firmware\n");
+        exit (EXIT_FAILURE);
+    }
+
+    if (EVP_DigestSignUpdate(mdctx, firmware_buf, firmware_len) != 1) {
+        printf("Message digest update failed.\n");
+        exit(EXIT_FAILURE);
+    }
+    free(firmware_buf);
+
+    // call with empty sig to get length
+    if (EVP_DigestSignFinal(mdctx, NULL, &sig_len) != 1) {
+        printf("Message digest finalization failed.\n");
+        exit (EXIT_FAILURE);
+    }
+
+    // allocate signature buffer
+    sig = malloc(sizeof(unsigned char) * sig_len);
+    if(sig == NULL){
+        perror("could not initialize digest buffer");
+        exit (EXIT_FAILURE);
+    }
+
+    // load signature into buffer
+    if (EVP_DigestSignFinal(mdctx, sig, &sig_len) != 1) {
+        printf("Message digest finalization failed.\n");
+        exit (EXIT_FAILURE);
+    }
+
+    fwrite(sig, sig_len, 1, stdout);
+    if (ferror(stdout) != 0) {
+        fprintf(stdout, "failed to write signature to stdout\n");
+        exit (EXIT_FAILURE);
+    }
+
+    fflush(stdout);
+
+    // free all allocated resources
+    free(sig);
+    EVP_MD_CTX_free(mdctx);
+    EVP_PKEY_free(key);
+    exit (EXIT_SUCCESS);
+}

7-SGX_Hands-on/src/app/employee.h

@@ -0,0 +1,23 @@
+#ifndef _APP_INTERMEDIARY_H_
+#define _APP_INTERMEDIARY_H_
+
+
+/*
+ * @brief getter for employee subcommand syntax string
+ *
+ * @returns null-terminated syntax string
+ */
+char* employee_syntax(void);
+
+/*
+ * @brief CLI implementation for the "employee" subcommand
+ *
+ * @param argc number of arguments with command and subcommand stripped
+ * @param argv arguments with command and subcommand stripped
+ *
+ * @returns 0 on success, else error with output on stderr
+ */
+int handle_employee(int argc, char** argv);
+
+
+#endif

7-SGX_Hands-on/src/app/main.c

@@ -0,0 +1,33 @@
+#include <errno.h>
+#include <string.h>
+
+#include "embedded_device.h"
+#include "employee.h"
+#include "proxy.h"
+#include "proxysetup.h"
+#include "util.h"
+
+
+/*
+ * main method of the binary calls the implementation of the specified subcommand
+ */
+int main(int argc, char** argv) {
+    if(argc < 1)
+        syntax_exit();
+    set_bin_name(argv[0]);
+    if(argc < 2)
+        syntax_exit();
+
+    char* command = argv[1];
+
+    if(strcmp(command, "employee")==0)
+        handle_employee(argc-2, argv+2);
+    else if (strcmp(command, "proxy")==0)
+        handle_proxy(argc-2, argv+2);
+    else if (strcmp(command, "proxysetup")==0)
+        handle_proxysetup(argc-2, argv+2);
+    else if (strcmp(command, "embedded")==0)
+        handle_embedded_device(argc-2, argv+2);
+    else
+        syntax_exit();
+}

7-SGX_Hands-on/src/app/proxy.c

@@ -0,0 +1,435 @@
+#include <errno.h>
+#include <sgx_urts.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <openssl/core_names.h>
+#include <openssl/evp.h>
+#include <openssl/param_build.h>
+#include <openssl/pem.h>
+
+#include <sgx_tcrypto.h>
+
+#include "enclave_u.h"
+#include "proxy.h"
+#include "util.h"
+
+
+struct ProxyArgs {
+    char* sealed_key_file_path;
+    char* sgx_token_path;
+    char* employee_public_key_path;
+    char* firmware_path;
+};
+
+char* proxy_syntax(void) {
+    return
+        "proxy               implementation of the enclave-powered SignatureProxy\n"
+        "                    expects intermediary signature on stdin\n"
+        "                    outputs proxied signature on stdout\n"
+        "                    WARNING: output is binary format, may mess up terminal\n"
+        "    -pkey <path>    file path of the sealed proxy key\n"
+        "    -epub <path>    path of the PEM encoded employee public key\n"
+        "    -firm <path>    path of the firmware\n"
+        "    -token <path>   (optional) file path of the sgx token\n";
+}
+
+static EVP_PKEY *sgx_public_to_EVP_PKEY(const sgx_ec256_public_t *p_public)
+{
+	EVP_PKEY *evp_key = NULL;
+	EVP_PKEY_CTX *pkey_ctx = NULL;
+	BIGNUM *bn_pub_x = NULL;
+	BIGNUM *bn_pub_y = NULL;
+	EC_POINT *point = NULL;
+    EC_GROUP* group = NULL;
+	OSSL_PARAM_BLD *params_build = NULL;
+	OSSL_PARAM *params = NULL;
+	const char *curvename = NULL;
+	int nid = 0;
+	size_t key_len;
+	unsigned char pub_key[SGX_ECP256_KEY_SIZE+4];
+
+    group = EC_GROUP_new_by_curve_name(NID_X9_62_prime256v1);
+	if (group == NULL)
+        return NULL;
+
+	do {
+		// converts the x value of public key, represented as positive integer in little-endian into a BIGNUM
+		bn_pub_x = BN_lebin2bn((unsigned char*)p_public->gx, sizeof(p_public->gx), bn_pub_x);
+		if (NULL == bn_pub_x) {
+			break;
+		}
+		// converts the y value of public key, represented as positive integer in little-endian into a BIGNUM
+		bn_pub_y = BN_lebin2bn((unsigned char*)p_public->gy, sizeof(p_public->gy), bn_pub_y);
+		if (NULL == bn_pub_y) {
+			break;
+		}
+		// creates new point and assigned the group object that the point relates to
+		point = EC_POINT_new(group);
+		if (NULL == point) {
+			break;
+		}
+
+		// sets point based on public key's x,y coordinates
+		if (1 != EC_POINT_set_affine_coordinates(group, point, bn_pub_x, bn_pub_y, NULL)) {
+			break;
+		}
+
+		// check point if the point is on curve
+		if (1 != EC_POINT_is_on_curve(group, point, NULL)) {
+			break;
+		}
+
+		// convert point to octet string
+		key_len = EC_POINT_point2oct(group, point, POINT_CONVERSION_COMPRESSED, pub_key, sizeof(pub_key), NULL);
+		if (key_len == 0) {
+			break;
+		}
+
+		// build OSSL_PARAM
+		params_build = OSSL_PARAM_BLD_new();
+		if (NULL == params_build) {
+			break;
+		}
+		nid = EC_GROUP_get_curve_name(group);
+		if (nid == NID_undef) {
+			break;
+		}
+		curvename = OBJ_nid2sn(nid);
+		if (curvename == NULL) {
+			break;
+		}
+		if (1 != OSSL_PARAM_BLD_push_utf8_string(params_build, "group", curvename, 0)) {
+			break;
+		}
+		if (1 != OSSL_PARAM_BLD_push_octet_string(params_build, OSSL_PKEY_PARAM_PUB_KEY, pub_key, key_len)) {
+			break;
+		}
+		params = OSSL_PARAM_BLD_to_param(params_build);
+		if (NULL == params) {
+			break;
+		}
+
+		// get pkey from params
+		pkey_ctx = EVP_PKEY_CTX_new_from_name(NULL, "EC", NULL);
+		if (NULL == pkey_ctx) {
+			break;
+		}
+		if (1 != EVP_PKEY_fromdata_init(pkey_ctx)) {
+			break;
+		}
+		if (1 != EVP_PKEY_fromdata(pkey_ctx, &evp_key, EVP_PKEY_PUBLIC_KEY, params)) {
+			EVP_PKEY_free(evp_key);
+			evp_key = NULL;
+		}
+	} while(0);
+
+	BN_clear_free(bn_pub_x);
+	BN_clear_free(bn_pub_y);
+	EC_POINT_clear_free(point);
+	OSSL_PARAM_free(params);
+	OSSL_PARAM_BLD_free(params_build);
+	EVP_PKEY_CTX_free(pkey_ctx);
+    EC_GROUP_free(group);
+
+	return evp_key;
+}
+
+static int EVP_PKEY_to_sgx_public(EVP_PKEY* ecdsa_key, sgx_ec256_public_t* sgx_public) {
+    EC_GROUP* group = NULL;
+	EC_POINT *point = NULL;
+    BIGNUM* pub_x = NULL;
+	BIGNUM* pub_y = NULL;
+    size_t ec_key_buf_len = 0;
+    unsigned char ec_key_buf[1024];
+    int ret;
+    int retval;
+
+    group = EC_GROUP_new_by_curve_name(NID_X9_62_prime256v1);
+	if (group == NULL)
+        return 1;
+
+    point = EC_POINT_new(group);
+    if (point == NULL)
+        return 2;
+
+    ret = EVP_PKEY_get_octet_string_param(ecdsa_key, OSSL_PKEY_PARAM_PUB_KEY, ec_key_buf, 1024, &ec_key_buf_len);
+    if (ret != 1)
+        return 3;
+
+    ret = EC_POINT_oct2point(group, point, ec_key_buf, ec_key_buf_len, NULL);
+    if (ret != 1){
+        retval = 4;
+        goto cleanup;
+    }
+
+    pub_x = BN_new();
+    pub_y = BN_new();
+
+    ret = EC_POINT_get_affine_coordinates(group, point, pub_x, pub_y, NULL);
+    if (ret != 1){
+        retval = 5;
+        goto cleanup;
+    }
+
+    ret = BN_bn2lebinpad(pub_x, sgx_public->gx, SGX_ECP256_KEY_SIZE);
+    if (ret == -1){
+        retval = 6;
+        goto cleanup;
+    }
+
+    ret = BN_bn2lebinpad(pub_y, sgx_public->gy, SGX_ECP256_KEY_SIZE);
+    if (ret == -1){
+        retval = 7;
+        goto cleanup;
+    }
+
+    retval = 0;
+
+cleanup:
+    if (pub_x != NULL)
+        BN_clear_free(pub_x);
+    if (pub_y != NULL)
+        BN_clear_free(pub_y);
+    if (point != NULL)
+        EC_POINT_clear_free(point);
+    if (group != NULL)
+        EC_GROUP_free(group);
+
+    return (retval);
+}
+
+static int ECDSA_SIG_to_sgx_signature(ECDSA_SIG* ecdsa_sig, sgx_ec256_signature_t* sgx_signature) {
+    const BIGNUM* r = NULL;
+	const BIGNUM* s = NULL;
+    int ret;
+
+    r = ECDSA_SIG_get0_r(ecdsa_sig);
+    s = ECDSA_SIG_get0_s(ecdsa_sig);
+
+    ret = BN_bn2lebinpad(r, (unsigned char*)sgx_signature->x, SGX_ECP256_KEY_SIZE);
+    if (ret == -1)
+        return (1);
+
+    ret = BN_bn2lebinpad(s, (unsigned char*)sgx_signature->y, SGX_ECP256_KEY_SIZE);
+    if (ret == -1)
+        return (2);
+
+    return (0);
+}
+
+/*
+ * This function is a modified version of the `sgx_ecdsa_verify_hash` function in the [Intel SGX crypto library](https://github.com/intel/linux-sgx/blob/main/sdk/tlibcrypto/sgxssl/sgx_ecc256_ecdsa.cpp).
+ * The specified License applies.
+ */
+static int sgx_signature_to_ECDSA_SIG(sgx_ec256_signature_t* sgx_signature, ECDSA_SIG** ecdsa_signature) {
+	BIGNUM *bn_r = NULL;
+	BIGNUM *bn_s = NULL;
+
+	// converts the x value of the signature, represented as positive integer in little-endian into a BIGNUM
+	//
+	bn_r = BN_lebin2bn((unsigned char*)sgx_signature->x, sizeof(sgx_signature->x), 0);
+	if (bn_r == NULL)
+        return (1);
+
+
+	// converts the y value of the signature, represented as positive integer in little-endian into a BIGNUM
+	//
+	bn_s = BN_lebin2bn((unsigned char*)sgx_signature->y, sizeof(sgx_signature->y), 0);
+	if (NULL == bn_s) {
+        if (bn_r != NULL)
+		    BN_clear_free(bn_r);
+
+        return (2);
+	}
+
+
+	// allocates a new ECDSA_SIG structure (note: this function also allocates the BIGNUMs) and initialize it
+	//
+	*ecdsa_signature = ECDSA_SIG_new();
+	if (NULL == *ecdsa_signature) {
+        if (bn_r != NULL)
+		    BN_clear_free(bn_r);
+        if (bn_s != NULL)
+		    BN_clear_free(bn_s);
+
+        return (3);
+	}
+
+	// setes the r and s values of ecdsa_sig
+	// calling this function transfers the memory management of the values to the ECDSA_SIG object,
+	// and therefore the values that have been passed in should not be freed directly after this function has been called
+	//
+	if (1 != ECDSA_SIG_set0(*ecdsa_signature, bn_r, bn_s)) {
+		ECDSA_SIG_free(*ecdsa_signature);
+		*ecdsa_signature = NULL;
+
+        if (bn_r != NULL)
+		    BN_clear_free(bn_r);
+
+        if (bn_s != NULL)
+		    BN_clear_free(bn_s);
+
+        return (4);
+	}
+
+    return (0);
+}
+
+int handle_proxy(int argc, char** argv) {
+    struct ProxyArgs args = {
+        NULL,
+        NULL,
+        NULL
+    };
+    uint8_t* sealed;
+    size_t sealed_len;
+    uint8_t* firmware;
+    size_t firmware_len;
+	unsigned char* ecdsa_signature_data;
+	size_t ecdsa_signature_size = 0;
+    uint8_t signature[70];
+    sgx_status_t ret;
+    ECDSA_SIG* ecdsa_signature;
+    sgx_ec256_signature_t sgx_signature;
+
+    /*
+     * Parse Input
+     */
+
+    int i = 0;
+    while(i < argc) {
+        if(strcmp(argv[i], "-pkey")==0 && argc-i >=2){
+            args.sealed_key_file_path = argv[i+1];
+            i += 2;
+        }else if(strcmp(argv[i], "-token")==0 && argc-i >=2){
+            args.sgx_token_path = argv[i+1];
+            i += 2;
+        }else if(strcmp(argv[i], "-epub")==0 && argc-i >=2){
+            args.employee_public_key_path = argv[i+1];
+            i += 2;
+        }else if(strcmp(argv[i], "-firm")==0 && argc-i >=2){
+            args.firmware_path = argv[i+1];
+            i += 2;
+        }else
+            syntax_exit();
+    }
+
+    if(args.sealed_key_file_path == NULL || args.employee_public_key_path == NULL || args.firmware_path == NULL)
+        syntax_exit();
+
+    /*
+     * Read And Parse Signature Input
+     */
+
+    ecdsa_signature_data = malloc(1024);
+    if (ecdsa_signature_data == NULL) {
+        perror("failed to allocate signature");
+        exit (EXIT_FAILURE);
+    }
+
+    ecdsa_signature_size = fread(ecdsa_signature_data, 1, 1024, stdin);
+
+    if (ferror(stdin) != 0) {
+        fprintf(stderr, "failed to read signature from stdin\n");
+        exit (EXIT_FAILURE);
+    }
+
+    ecdsa_signature = ECDSA_SIG_new();
+    ecdsa_signature = d2i_ECDSA_SIG(&ecdsa_signature, (const unsigned char**)&ecdsa_signature_data, ecdsa_signature_size);
+    ecdsa_signature_data = NULL;
+    if (ecdsa_signature == NULL) {
+        fprintf(stderr, "failed to read signature\n");
+        exit (EXIT_FAILURE);
+    }
+
+    if (ECDSA_SIG_to_sgx_signature(ecdsa_signature, &sgx_signature) != 0) {
+        fprintf(stderr, "failed to transform signature\n");
+        exit (EXIT_FAILURE);
+    }
+    ECDSA_SIG_free(ecdsa_signature);
+    ecdsa_signature = NULL;
+
+
+    // Initialize SGX Enclave
+    if (initialize_enclave(args.sgx_token_path) != 0)
+        exit(1);
+
+    /*
+     * Read Employee Public Key
+     */
+
+    EVP_PKEY* key = NULL;
+    FILE* key_file = fopen(args.employee_public_key_path, "rb");
+    if(key_file == NULL){
+        perror("Error opening employee public key file");
+        exit(1);
+    }
+    key = PEM_read_PUBKEY(key_file, &key, NULL, NULL);
+    if(key == NULL) {
+        fprintf(stderr, "failed to read employee public key\n");
+        exit (EXIT_FAILURE);
+    }
+    fclose(key_file);
+
+    sgx_ec256_public_t sgx_public;
+    if (EVP_PKEY_to_sgx_public(key, &sgx_public) != 0) {
+        fprintf(stderr, "failed transform employee public key\n");
+        exit (EXIT_FAILURE);
+    }
+
+    //Read Sealed Proxy Keypair
+    if (load_file(args.sealed_key_file_path, &sealed, &sealed_len)!=0){
+        fprintf(stderr, "failed to read sealed key\n");
+        exit (EXIT_FAILURE);
+    }
+
+    // Read Firmware
+    if (load_file(args.firmware_path, &firmware, &firmware_len)!=0){
+        fprintf(stderr, "failed to read firmware\n");
+        exit (EXIT_FAILURE);
+    }
+
+    /*
+     * Use Enclave To Resign the Firmware
+     */
+
+    sign_firmware(get_global_eid(), &ret, firmware, firmware_len, sealed, sealed_len, (uint8_t*)&sgx_public, (uint8_t*)&sgx_signature);
+    if (ret != SGX_SUCCESS) {
+        sgx_print_error_message(ret);
+        exit (1);
+    }
+
+    free(sealed);
+    free(firmware);
+
+    /*
+     * Output Signature
+     */
+    if (sgx_signature_to_ECDSA_SIG(&sgx_signature, &ecdsa_signature) != 0) {
+        fprintf(stderr, "could not convert signature\n");
+        exit (EXIT_FAILURE);
+    }
+
+    ecdsa_signature_data = NULL;
+	ecdsa_signature_size = i2d_ECDSA_SIG(ecdsa_signature, &ecdsa_signature_data);
+	if (ecdsa_signature_size <= 0) {
+        fprintf(stderr, "could not convert signature\n");
+        exit (EXIT_FAILURE);
+	}
+
+    fwrite(ecdsa_signature_data, ecdsa_signature_size, 1, stdout);
+
+    if (ferror(stdout) != 0) {
+        fprintf(stderr, "could not write signature to stdout\n");
+        exit (EXIT_FAILURE);
+    }
+
+    fflush(stdout);
+
+    free(ecdsa_signature_data);
+    ECDSA_SIG_free(ecdsa_signature);
+
+    exit (EXIT_SUCCESS);
+}

7-SGX_Hands-on/src/app/proxy.h

@@ -0,0 +1,23 @@
+#ifndef _APP_PROXY_H_
+#define _APP_PROXY_H_
+
+
+/*
+ * @brief getter for proxy subcommand syntax string
+ *
+ * @returns null-terminated syntax string
+ */
+char* proxy_syntax(void);
+
+/*
+ * @brief CLI implementation for the "proxy" subcommand
+ *
+ * @param argc number of arguments with command and subcommand stripped
+ * @param argv arguments with command and subcommand stripped
+ *
+ * @returns 0 on success, else error with output on stderr
+ */
+int handle_proxy(int argc, char** argv);
+
+
+#endif

7-SGX_Hands-on/src/app/proxysetup.c

@@ -0,0 +1,237 @@
+#include <errno.h>
+#include <sgx_urts.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <openssl/core_names.h>
+#include <openssl/evp.h>
+#include <openssl/param_build.h>
+#include <openssl/pem.h>
+
+#include <sgx_tcrypto.h>
+
+#include "enclave_u.h"
+#include "proxysetup.h"
+#include "util.h"
+
+struct ProxysetupArgs {
+    char* sealed_key_file_path;
+    char* sgx_token_path;
+};
+
+char* proxysetup_syntax(void) {
+    return
+        "proxysetup          implementation of the enclave-powered SignatureProxy\n"
+        "                    outputs public key on stdout\n"
+        "    -pkey <path>    file path of the sealed proxy key\n"
+        "    -token <path>   (optional) file path of the sgx token\n";
+}
+
+/*
+ * This function is a modified version of the `get_pub_key_from_coords` function in the [Intel SGX crypto library](https://github.com/intel/linux-sgx/blob/c1ceb4fe146e0feb1097dee81c7e89925443e43c/sdk/tlibcrypto/sgxssl/sgx_ecc256.cpp).
+ * The specified License applies.
+ */
+static EVP_PKEY *sgx_public_to_EVP_PKEY(const sgx_ec256_public_t *p_public)
+{
+	EVP_PKEY *evp_key = NULL;
+	EVP_PKEY_CTX *pkey_ctx = NULL;
+	BIGNUM *bn_pub_x = NULL;
+	BIGNUM *bn_pub_y = NULL;
+	EC_POINT *point = NULL;
+    EC_GROUP* group = NULL;
+	OSSL_PARAM_BLD *params_build = NULL;
+	OSSL_PARAM *params = NULL;
+	const char *curvename = NULL;
+	int nid = 0;
+	size_t key_len;
+	unsigned char pub_key[SGX_ECP256_KEY_SIZE+4];
+
+    group = EC_GROUP_new_by_curve_name(NID_X9_62_prime256v1);
+	if (group == NULL)
+        return NULL;
+
+	do {
+		// converts the x value of public key, represented as positive integer in little-endian into a BIGNUM
+		bn_pub_x = BN_lebin2bn((unsigned char*)p_public->gx, sizeof(p_public->gx), bn_pub_x);
+		if (NULL == bn_pub_x) {
+			break;
+		}
+		// converts the y value of public key, represented as positive integer in little-endian into a BIGNUM
+		bn_pub_y = BN_lebin2bn((unsigned char*)p_public->gy, sizeof(p_public->gy), bn_pub_y);
+		if (NULL == bn_pub_y) {
+			break;
+		}
+		// creates new point and assigned the group object that the point relates to
+		point = EC_POINT_new(group);
+		if (NULL == point) {
+			break;
+		}
+
+		// sets point based on public key's x,y coordinates
+		if (1 != EC_POINT_set_affine_coordinates(group, point, bn_pub_x, bn_pub_y, NULL)) {
+			break;
+		}
+
+		// check point if the point is on curve
+		if (1 != EC_POINT_is_on_curve(group, point, NULL)) {
+			break;
+		}
+
+		// convert point to octet string
+		key_len = EC_POINT_point2oct(group, point, POINT_CONVERSION_COMPRESSED, pub_key, sizeof(pub_key), NULL);
+		if (key_len == 0) {
+			break;
+		}
+
+		// build OSSL_PARAM
+		params_build = OSSL_PARAM_BLD_new();
+		if (NULL == params_build) {
+			break;
+		}
+		nid = EC_GROUP_get_curve_name(group);
+		if (nid == NID_undef) {
+			break;
+		}
+		curvename = OBJ_nid2sn(nid);
+		if (curvename == NULL) {
+			break;
+		}
+		if (1 != OSSL_PARAM_BLD_push_utf8_string(params_build, "group", curvename, 0)) {
+			break;
+		}
+		if (1 != OSSL_PARAM_BLD_push_octet_string(params_build, OSSL_PKEY_PARAM_PUB_KEY, pub_key, key_len)) {
+			break;
+		}
+		params = OSSL_PARAM_BLD_to_param(params_build);
+		if (NULL == params) {
+			break;
+		}
+
+		// get pkey from params
+		pkey_ctx = EVP_PKEY_CTX_new_from_name(NULL, "EC", NULL);
+		if (NULL == pkey_ctx) {
+			break;
+		}
+		if (1 != EVP_PKEY_fromdata_init(pkey_ctx)) {
+			break;
+		}
+		if (1 != EVP_PKEY_fromdata(pkey_ctx, &evp_key, EVP_PKEY_PUBLIC_KEY, params)) {
+			EVP_PKEY_free(evp_key);
+			evp_key = NULL;
+		}
+	} while(0);
+
+	BN_clear_free(bn_pub_x);
+	BN_clear_free(bn_pub_y);
+	EC_POINT_clear_free(point);
+	OSSL_PARAM_free(params);
+	OSSL_PARAM_BLD_free(params_build);
+	EVP_PKEY_CTX_free(pkey_ctx);
+    EC_GROUP_free(group);
+
+	return evp_key;
+}
+
+int handle_proxysetup(int argc, char** argv) {
+    struct ProxysetupArgs args = {
+        NULL,
+        NULL
+    };
+    FILE* sealed_file;
+    int sealed_size;
+    uint8_t* sealed;
+    sgx_ec256_public_t sgx_public_key;
+    EVP_PKEY* public_key;
+    sgx_status_t sgx_ret;
+
+    /*
+     * Parse Input
+     */
+
+    int i = 0;
+    while(i < argc) {
+        if(strcmp(argv[i], "-pkey")==0 && argc-i >=2){
+            args.sealed_key_file_path = argv[i+1];
+            i += 2;
+        }else if(strcmp(argv[i], "-token")==0 && argc-i >=2){
+            args.sgx_token_path = argv[i+1];
+            i += 2;
+        }else
+            syntax_exit();
+    }
+
+    if(args.sealed_key_file_path == NULL)
+        syntax_exit();
+
+    /*
+     * Initialize SGX Enclave
+     */
+
+    if (initialize_enclave(args.sgx_token_path) != 0)
+        exit (EXIT_FAILURE);
+
+    /*
+     * Setup Sealed Keypair
+     */
+
+    sealed_file = fopen(args.sealed_key_file_path, "wb");
+    if(sealed_file == NULL){
+        perror("Error opening sealed_key_file file");
+        exit (EXIT_FAILURE);
+    }
+
+    sgx_ret = get_sealed_size(get_global_eid(), &sealed_size);
+    if (sgx_ret != SGX_SUCCESS) {
+        sgx_print_error_message(sgx_ret);
+        exit (EXIT_FAILURE);
+    }
+    sealed = malloc(sizeof(uint8_t)*sealed_size);
+    if (sealed == NULL) {
+        fprintf(stderr, "failed to allocate for sealed key");
+        exit (EXIT_FAILURE);
+    }
+
+    /*
+     * Use Enclave To Generate Keypair
+     */
+
+    generate_key_pair(get_global_eid(), &sgx_ret, sealed, sealed_size);
+    if (sgx_ret != SGX_SUCCESS) {
+        sgx_print_error_message(sgx_ret);
+        exit (EXIT_FAILURE);
+    }
+
+    /*
+     * Store Sealed Keypair
+     */
+
+    if (fwrite(sealed, sealed_size, 1, sealed_file) != 1 || ferror(sealed_file) != 0) {
+        fprintf(stderr, "failed to write sealed key");
+        exit (EXIT_FAILURE);
+    }
+    fflush(sealed_file);
+    fclose(sealed_file);
+
+    /*
+     * Fetch Public Key From Enclave And Print
+     */
+
+    get_public_key(get_global_eid(), &sgx_ret, sealed, sealed_size, (uint8_t*)&sgx_public_key);
+    if (sgx_ret != SGX_SUCCESS) {
+        sgx_print_error_message(sgx_ret);
+        exit (EXIT_FAILURE);
+    }
+
+    public_key = sgx_public_to_EVP_PKEY(&sgx_public_key);
+    if (PEM_write_PUBKEY(stdout, public_key) != 1) {
+        fprintf(stderr, "could not write publickey\n");
+        exit (EXIT_FAILURE);
+    }
+    fflush(stdout);
+
+    EVP_PKEY_free(public_key);
+    free(sealed);
+
+    exit (EXIT_SUCCESS);
+}

7-SGX_Hands-on/src/app/proxysetup.h

@@ -0,0 +1,23 @@
+#ifndef _APP_PROXYSETUP_H_
+#define _APP_PROXYSETUP_H_
+
+
+/*
+ * @brief getter for proxysetup subcommand syntax string
+ *
+ * @returns null-terminated syntax string
+ */
+char* proxysetup_syntax(void);
+
+/*
+ * @brief CLI implementation for the "proxysetup" subcommand
+ *
+ * @param argc number of arguments with command and subcommand stripped
+ * @param argv arguments with command and subcommand stripped
+ *
+ * @returns 0 on success, else error with output on stderr
+ */
+int handle_proxysetup(int argc, char** argv);
+
+
+#endif

7-SGX_Hands-on/src/app/util.c

@@ -0,0 +1,247 @@
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "embedded_device.h"
+#include "employee.h"
+#include "util.h"
+#include "proxy.h"
+#include "proxysetup.h"
+
+
+static char* BIN_NAME = "SignatureProxy";
+
+static sgx_enclave_id_t global_eid = 0;
+
+void syntax_exit(void) {
+    char* syntax =
+        "SignatureProxy Version 0.0.0\n"
+        "Syntax: %s <command> <arguments>\n"
+        "\n"
+        "Commands:\n"
+        "%s"
+        "\n"
+        "%s"
+        "\n"
+        "%s"
+        "\n"
+        "%s";
+
+    printf(syntax, BIN_NAME, proxysetup_syntax(), employee_syntax(), proxy_syntax(), embedded_device_syntax());
+    exit (EXIT_FAILURE);
+}
+
+void set_bin_name(char* bin_name) {
+    BIN_NAME = bin_name;
+}
+/*
+ * This definition is copied from the provided SGX Examples.
+ * The specified License applies.
+ */
+typedef struct _sgx_errlist_t {
+    sgx_status_t err;
+    const char *msg;
+    const char *sug; /* Suggestion */
+} sgx_errlist_t;
+
+/*
+ * This definition is copied from the provided SGX Examples.
+ * The specified License applies.
+ */
+/* Error code returned by sgx_create_enclave */
+static sgx_errlist_t sgx_errlist[] = {
+    {
+        SGX_ERROR_UNEXPECTED,
+        "Unexpected error occurred.",
+        NULL
+    },
+    {
+        SGX_ERROR_INVALID_PARAMETER,
+        "Invalid parameter.",
+        NULL
+    },
+    {
+        SGX_ERROR_OUT_OF_MEMORY,
+        "Out of memory.",
+        NULL
+    },
+    {
+        SGX_ERROR_ENCLAVE_LOST,
+        "Power transition occurred.",
+        "Please refer to the sample \"PowerTransition\" for details."
+    },
+    {
+        SGX_ERROR_INVALID_ENCLAVE,
+        "Invalid enclave image.",
+        NULL
+    },
+    {
+        SGX_ERROR_INVALID_ENCLAVE_ID,
+        "Invalid enclave identification.",
+        NULL
+    },
+    {
+        SGX_ERROR_INVALID_SIGNATURE,
+        "Invalid enclave signature.",
+        NULL
+    },
+    {
+        SGX_ERROR_OUT_OF_EPC,
+        "Out of EPC memory.",
+        NULL
+    },
+    {
+        SGX_ERROR_NO_DEVICE,
+        "Invalid SGX device.",
+        "Please make sure SGX module is enabled in the BIOS, and install SGX driver afterwards."
+    },
+    {
+        SGX_ERROR_MEMORY_MAP_CONFLICT,
+        "Memory map conflicted.",
+        NULL
+    },
+    {
+        SGX_ERROR_INVALID_METADATA,
+        "Invalid enclave metadata.",
+        NULL
+    },
+    {
+        SGX_ERROR_DEVICE_BUSY,
+        "SGX device was busy.",
+        NULL
+    },
+    {
+        SGX_ERROR_INVALID_VERSION,
+        "Enclave version was invalid.",
+        NULL
+    },
+    {
+        SGX_ERROR_INVALID_ATTRIBUTE,
+        "Enclave was not authorized.",
+        NULL
+    },
+    {
+        SGX_ERROR_ENCLAVE_FILE_ACCESS,
+        "Can't open enclave file.",
+        NULL
+    },
+};
+/*
+ * This Method is copied from the provided SGX Examples.
+ * The specified License applies.
+ */
+/* Check error conditions for loading enclave */
+void sgx_print_error_message(sgx_status_t ret)
+{
+    size_t idx = 0;
+    size_t ttl = sizeof sgx_errlist/sizeof sgx_errlist[0];
+
+    for (idx = 0; idx < ttl; idx++) {
+        if(ret == sgx_errlist[idx].err) {
+            if(NULL != sgx_errlist[idx].sug)
+                printf("Info: %s\n", sgx_errlist[idx].sug);
+            printf("Error: %s\n", sgx_errlist[idx].msg);
+            break;
+        }
+    }
+
+    if (idx == ttl)
+    	printf("Error code is 0x%X. Please refer to the \"Intel SGX SDK Developer Reference\" for more details.\n", ret);
+}
+
+/*
+ * This Method is copied from the provided SGX Examples.
+ * The specified License applies.
+ */
+int initialize_enclave(char* token_path) {
+    FILE* sgx_token_file = NULL;
+    sgx_launch_token_t token = {0};
+    sgx_status_t ret;
+    int updated = 0;
+
+    if (token_path != NULL) {
+        sgx_token_file = fopen(token_path, "rb");
+    }
+
+    if(sgx_token_file == NULL){
+        if (errno != ENOENT && token_path != NULL) {
+            perror("Error opening sgx token file");
+            exit(1);
+        }
+    }else{
+        size_t read_num = fread(token, 1, sizeof(sgx_launch_token_t), sgx_token_file);
+        if (read_num != 0 && read_num != sizeof(sgx_launch_token_t)) {
+            fprintf(stderr, "sgx token file is corrupted");
+            return (1);
+        }
+    }
+
+    ret = sgx_create_enclave("enclave.signed.so", SGX_DEBUG_FLAG, &token, &updated, &global_eid, NULL);
+    if (ret != SGX_SUCCESS) {
+        sgx_print_error_message(ret);
+        return (1);
+    }
+
+    if (updated && token_path != NULL) {
+        sgx_token_file = freopen(token_path, "wb", sgx_token_file);
+        if(sgx_token_file == NULL){
+            perror("Error opening sgx token file");
+            return (1);
+        }
+        size_t write_num = fwrite(token, 1, sizeof(sgx_launch_token_t), sgx_token_file);
+        if (write_num != sizeof(sgx_launch_token_t)){
+            fprintf(stderr,"Warning: Failed to save launch token to \"%s\".\n", token_path);
+            return (1);
+        }
+    }
+    return (0);
+}
+
+sgx_enclave_id_t get_global_eid(void){
+    return global_eid;
+}
+
+int load_file(const char* path, uint8_t** data, size_t* data_len) {
+    FILE* file;
+    size_t file_size;
+    uint8_t* buf;
+
+    int file_des = open(path, O_RDWR);
+    if(file_des == 0)
+        return (1);
+
+    struct stat stat;
+    if (fstat(file_des, &stat) != 0){
+        close(file_des);
+        return (2);
+    }
+
+    close(file_des);
+
+    file_size = stat.st_size;
+    buf = malloc(file_size);
+    if (buf == NULL)
+        return (3);
+
+    file = fopen(path, "rb");
+    if(file == NULL){
+        free(buf);
+        return (4);
+    }
+
+    if (fread(buf, file_size, 1, file) != 1 || ferror(file) != 0) {
+        free(buf);
+        fclose(file);
+        return (5);
+    }
+
+    fclose(file);
+    *data = buf;
+    *data_len = file_size;
+    return (0);
+}

7-SGX_Hands-on/src/app/util.h

@@ -0,0 +1,33 @@
+#ifndef _APP_UTIL_H_
+#define _APP_UTIL_H_
+
+#include <sgx_urts.h>
+
+
+
+/*
+ * @brief prints the command syntax and exits with EXIT_FAILURE
+ */
+void syntax_exit(void);
+
+void set_bin_name(char* bin_name);
+
+void sgx_print_error_message(sgx_status_t ret);
+
+int initialize_enclave(char* token_path);
+
+sgx_enclave_id_t get_global_eid(void);
+
+/*
+ * @brief loads a file completely into the HEAP
+ *
+ * Loads a File into HEAP and returns a dynamically allocated buffer.
+ *
+ * @param path      path of the file
+ * @param data      allocated buffer output
+ * @param data_len  length of the allocated buffer
+ * @returns 0 on success, non zero on error
+ */
+int load_file(const char* path, uint8_t** data, size_t* data_len);
+
+#endif

7-SGX_Hands-on/src/enclave/enclave.c

@@ -0,0 +1,343 @@
+/*
+ * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in
+ *     the documentation and/or other materials provided with the
+ *     distribution.
+ *   * Neither the name of Intel Corporation nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#include <stdarg.h>
+#include <stdio.h>      /* vsnprintf */
+#include <string.h>
+#include <stdlib.h>
+
+#include "enclave.h"
+#include "enclave_t.h"
+#include <sgx_tseal.h>
+#include <sgx_error.h>
+#include <sgx_tcrypto.h>
+
+
+#ifndef SK_SIZE
+#define SK_SIZE SGX_ECP256_KEY_SIZE
+#endif
+
+#ifndef PK_SIZE
+#define PK_SIZE 2*SK_SIZE
+#endif
+
+#ifndef DG_SIZE
+#define DG_SIZE SK_SIZE
+#endif
+
+#ifndef SI_SIZE
+#define SI_SIZE 2*SK_SIZE
+#endif
+
+/*
+*   Bobs and Alices public keys
+*/
+const sgx_ec256_public_t authorized[2] = {
+    {
+        .gx = { 
+            0x9c, 0x72, 0x2b, 0x52, 0x0e, 0xff, 0x07, 0xdc,
+            0x7a, 0x32, 0x19, 0xbb, 0xd8, 0x41, 0x94, 0x2c,
+            0xee, 0x17, 0xb2, 0xf6, 0x2e, 0x08, 0x61, 0xab,
+            0xbc, 0x50, 0xaf, 0xb6, 0x2e, 0xf9, 0x2c, 0xee
+        },
+        .gy = {
+            0x8c, 0x84, 0x2f, 0xb5, 0x94, 0xca, 0x60, 0x94,
+            0xb0, 0xdc, 0x8a, 0xcf, 0x17, 0x91, 0xd3, 0xab,
+            0x29, 0x0e, 0x81, 0x8c, 0xf6, 0x95, 0xc6, 0x92,
+            0x87, 0x0e, 0x1d, 0x76, 0x56, 0xba, 0x51, 0xbb 
+        }
+    },
+    {
+        .gx = {
+            0x8d, 0x96, 0xa3, 0x4f, 0x1a, 0x18, 0x10, 0x00,
+            0x72, 0xb5, 0x42, 0x4f, 0x1c, 0xfb, 0xb6, 0xd0,
+            0x29, 0x4f, 0x5f, 0xd2, 0xef, 0x29, 0x49, 0x1c,
+            0xea, 0x2b, 0xf5, 0x61, 0x5e, 0x50, 0xe5, 0x76
+        },
+        .gy = {
+            0xb2, 0x58, 0xa6, 0xf9, 0xf3, 0xc4, 0xb5, 0xdf,
+            0xa0, 0x4b, 0xb6, 0xad, 0xdd, 0xb1, 0x04, 0xec,
+            0x93, 0x2e, 0x2f, 0xce, 0x34, 0x71, 0x7d, 0xf4,
+            0x9d, 0xa4, 0xa5, 0xf1, 0x47, 0x0a, 0xba, 0xa1
+        }
+    }
+};
+
+
+int get_digest_size() {
+    return DG_SIZE;
+}
+
+int get_sealed_size() {
+    return sgx_calc_sealed_data_size(PK_SIZE, SK_SIZE);
+}
+
+int get_signature_size() {
+    return SI_SIZE;
+}
+
+int get_public_key_size() {
+    return PK_SIZE;
+}
+
+int get_private_key_size() {
+    return SK_SIZE;
+}
+
+/*
+ * seals a key pair
+ */
+static sgx_status_t seal_key_pair(const sgx_ec256_private_t *private, const sgx_ec256_public_t *public, uint8_t **sealed) {
+    // allocate temporary buffers on stack
+    uint8_t pk[PK_SIZE] = {0};
+    uint8_t sk[SK_SIZE] = {0};
+
+    // copy key pair into buffers
+    memcpy(pk, public->gx, PK_SIZE);
+    memcpy(sk, private->r, SK_SIZE);
+
+    // seal keypair
+    return sgx_seal_data(PK_SIZE, (const uint8_t *)pk, SK_SIZE, (const uint8_t *)sk, get_sealed_size(), (sgx_sealed_data_t *) *sealed);
+}
+
+/*
+ * unseals a key pair
+ */
+static sgx_status_t unseal_key_pair(const uint8_t *sealed, sgx_ec256_private_t *private, sgx_ec256_public_t *public) {
+    // invalid parameter handling
+    if(sealed == NULL) {
+        return SGX_ERROR_INVALID_PARAMETER;
+    }
+
+    // allocate temporary buffers on stack
+    uint8_t pk[PK_SIZE] = {0};
+    uint8_t sk[SK_SIZE] = {0};
+    
+    // calculate public_key size and return error for unexpected results
+    uint32_t pk_size = sgx_get_add_mac_txt_len((const sgx_sealed_data_t *)sealed);
+    uint32_t sk_size = sgx_get_encrypt_txt_len((const sgx_sealed_data_t *)sealed);
+    if ((pk_size != PK_SIZE) || (sk_size != SK_SIZE)) {
+        return SGX_ERROR_UNEXPECTED;
+    }
+
+    // unseal ecc key pair
+    sgx_status_t status = sgx_unseal_data((const sgx_sealed_data_t *)sealed, pk, &pk_size, sk, &sk_size);
+    if (status != SGX_SUCCESS) {
+        return status;
+    }
+
+    // copy buffers into key structs
+    if(public != NULL) {
+        memcpy(public->gx, pk, PK_SIZE);
+    }
+    if (private != NULL) {
+        memcpy(private->r, sk, SK_SIZE);
+    }
+
+    // return success
+    return status;
+}
+
+sgx_status_t generate_key_pair(uint8_t *sealed, uint32_t sealed_size) {
+    // invalid parameter handling
+    if((sealed == NULL) || (sealed_size != get_sealed_size())) {
+        return SGX_ERROR_INVALID_PARAMETER;   
+    }
+
+    // declare needed structs
+    sgx_ecc_state_handle_t ecc_handle;
+    sgx_ec256_private_t private;
+    sgx_ec256_public_t public;
+    sgx_status_t status;
+    
+    // open ecc handle
+    if((status = sgx_ecc256_open_context(&ecc_handle)) != SGX_SUCCESS) {
+        return status;
+    }
+
+    // create ecc key pair
+    if((status = sgx_ecc256_create_key_pair(&private, &public, ecc_handle)) != SGX_SUCCESS) {
+        goto exit;
+    }
+
+    // seal key pair
+    status = seal_key_pair(&private, &public, &sealed);
+    
+    exit: ;
+    sgx_ecc256_close_context(ecc_handle);
+    return status;
+}
+
+sgx_status_t get_public_key(const uint8_t *sealed, uint32_t sealed_size, uint8_t *public) {
+    // invalid parameter handling
+    if((sealed == NULL) || (sealed_size != get_sealed_size())) {
+        return SGX_ERROR_INVALID_PARAMETER;
+    } else if(public == NULL) {
+        return SGX_ERROR_INVALID_PARAMETER;
+    }
+
+    // unseal public key
+    sgx_status_t status;
+    if((status = unseal_key_pair(sealed, NULL, (sgx_ec256_public_t *)public)) != SGX_SUCCESS) {
+        return status;
+    }
+
+    // return success
+    return status;
+}
+
+/*
+ * verifies an ecdsa signature
+ */
+static sgx_status_t verify_signature(const uint8_t *firmware, uint32_t firmware_size, const sgx_ec256_public_t *public, const sgx_ec256_signature_t* ecc_signature) {
+    // invalid parameter handling
+    if((firmware == NULL) || (firmware_size == 0) || (public == NULL) || (ecc_signature == NULL)) {
+        return SGX_ERROR_INVALID_PARAMETER;
+    }
+
+    // declare needed structure
+    sgx_ecc_state_handle_t ecc_handle;
+
+    // open ecc handle
+    sgx_status_t status;
+    if((status = sgx_ecc256_open_context(&ecc_handle)) != SGX_SUCCESS) {
+        return status;
+    }
+
+    // verify signature
+    uint8_t result;
+    sgx_status_t verification_status = sgx_ecdsa_verify(firmware, firmware_size, public, ecc_signature, &result, ecc_handle);
+
+    // handle failed verification process
+    if(verification_status != SGX_SUCCESS) {
+        result = verification_status;
+    }
+
+    // close context and return valid signature
+    sgx_ecc256_close_context(ecc_handle);
+    return result;
+}
+
+sgx_status_t sign_firmware(const uint8_t *firmware, uint32_t firmware_size, const uint8_t *sealed, uint32_t sealed_size, uint8_t *public_key, uint8_t *signature) {
+    // invalid parameter handling
+    if((firmware == NULL) || (firmware_size == 0)) {
+        return SGX_ERROR_INVALID_PARAMETER;
+    } else if((public_key == NULL) || (signature == NULL)) {
+        return SGX_ERROR_INVALID_PARAMETER;
+    } else if((sealed == NULL) || (sealed_size != get_sealed_size())) {
+        return SGX_ERROR_INVALID_PARAMETER;
+    }
+
+    // verify public key
+    for(size_t i = 0; i < sizeof(authorized)/sizeof(authorized[0]); i++) {
+        if(memcmp(public_key, authorized[i].gx, PK_SIZE) == 0) {
+            goto sign;
+        }
+    }
+    return SGX_ERROR_UNEXPECTED;
+    
+    sign: ;
+
+    // declare need structures
+    sgx_ec256_signature_t ecc_signature;
+    sgx_ecc_state_handle_t ecc_handle;
+    sgx_ec256_private_t private;
+
+    // open ecc handle
+    sgx_status_t status;
+    if((status = sgx_ecc256_open_context(&ecc_handle)) != SGX_SUCCESS) {
+        return status;
+    }
+
+    // verify request
+    if((status = verify_signature(firmware, firmware_size, (const sgx_ec256_public_t *)public_key, (const sgx_ec256_signature_t *)signature)) != SGX_EC_VALID) {
+        goto exit;
+    }
+
+    // try unseal keypair
+    if(status = unseal_key_pair(sealed, &private, (sgx_ec256_public_t *)public_key) != SGX_SUCCESS) {
+        goto exit;
+    }
+
+    // create signature
+    if((status = sgx_ecdsa_sign(firmware, firmware_size, &private, &ecc_signature, ecc_handle)) != SGX_SUCCESS) {
+        goto exit;
+    }
+
+    // copy signature to return buffer
+    memcpy(signature, ecc_signature.x, SI_SIZE);
+
+    // close ecc handle and return success
+    exit: ;
+    sgx_ecc256_close_context(ecc_handle);
+    return status;
+}
+
+sgx_status_t verify_firmware(const uint8_t *firmware, uint32_t firmware_size, const uint8_t *sealed, uint32_t sealed_size, const uint8_t *public_key, const uint8_t *signature) {
+    // invalid parameter handling
+    if((firmware == NULL) || (firmware_size == 0) || (signature == NULL)) {
+        return SGX_ERROR_INVALID_PARAMETER;
+    } else if((sealed == NULL) && (public_key == NULL)) {
+        return SGX_ERROR_INVALID_PARAMETER;
+    } else if((sealed != NULL) && (public_key != NULL)) {
+        return SGX_ERROR_INVALID_PARAMETER;
+    } else if((sealed_size != get_sealed_size()) && (public_key == NULL)) {
+        return SGX_ERROR_INVALID_PARAMETER;;
+    }
+
+    // declare needed structures
+    sgx_ec256_public_t public;
+    sgx_status_t status;
+
+    // verify signature from staff or enclave
+    if(public_key != NULL) {
+        // verification only with authorized public keys
+        for(size_t i = 0; i < sizeof(authorized)/sizeof(authorized[0]); i++) {
+            if(memcmp(public_key, authorized[i].gx, PK_SIZE) == 0) {
+                goto verify;
+            }
+        }   
+        return SGX_ERROR_UNEXPECTED;
+
+        verify: ;
+        // copy public key into struct
+        memcpy(public.gx, public_key, PK_SIZE);
+    } else {
+        // unseal public key
+        if((status = unseal_key_pair(sealed, NULL, &public)) != SGX_SUCCESS) {
+            return status;
+        }
+    }
+
+    // verify signature and return result
+    return verify_signature(firmware, firmware_size, &public, (const sgx_ec256_signature_t *)signature);
+}

7-SGX_Hands-on/src/enclave/enclave.config.xml

@@ -1,8 +1,8 @@
 <EnclaveConfiguration>
   <ProdID>0</ProdID>
   <ISVSVN>0</ISVSVN>
-  <StackMaxSize>0x40000</StackMaxSize>
+  <StackMaxSize>0x400000</StackMaxSize>
-  <HeapMaxSize>0x100000</HeapMaxSize>
+  <HeapMaxSize>0x1000000</HeapMaxSize>
   <TCSNum>10</TCSNum>
   <TCSPolicy>1</TCSPolicy>
   <!-- Recommend changing 'DisableDebug' to 1 to make the enclave undebuggable for enclave release -->

7-SGX_Hands-on/src/enclave/enclave.edl

@@ -40,7 +40,15 @@ enclave {
      */
     
     trusted {
-        public void printf_helloworld();
+        public int get_sealed_size();
+        public int get_digest_size();
+        public int get_signature_size();
+        public int get_public_key_size();
+        public int get_private_key_size();
+        public sgx_status_t generate_key_pair([out, size=sealed_size]uint8_t *sealed, uint32_t sealed_size);
+        public sgx_status_t get_public_key([in, size=sealed_size]const uint8_t *sealed, uint32_t sealed_size, [out, size=64]uint8_t *public_key);
+        public sgx_status_t sign_firmware([in, size=firmware_size]const uint8_t *firmware, uint32_t firmware_size, [in, size=sealed_size]const uint8_t *sealed, uint32_t sealed_size, [in, out, size=64]uint8_t *public_key, [in, out, size=64]uint8_t *signature);
+        public sgx_status_t verify_firmware([in, size=firmware_size]const uint8_t *firmware, uint32_t firmware_size, [in, size=sealed_size]const uint8_t *sealed, uint32_t sealed_size, [in, size=64]const uint8_t *public_key, [in, size=64]const uint8_t *signature);
     };
 
     /* 
@@ -49,7 +57,6 @@ enclave {
      *  [string]: specifies 'str' is a NULL terminated buffer.
      */
     untrusted {
-        void ocall_print_string([in, string] const char *str);
-    };
         
+    };
 };

7-SGX_Hands-on/src/enclave/enclave.h

@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in
+ *     the documentation and/or other materials provided with the
+ *     distribution.
+ *   * Neither the name of Intel Corporation nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+
+#ifndef _ENCLAVE_H_
+#define _ENCLAVE_H_
+
+#include <stdint.h>
+#include <sgx_error.h>
+
+/*
+ * returns the size of the sealed key pair
+ */
+int get_sealed_size();
+
+/*
+ * returns the length of the hash used in the signature
+ */
+int get_digest_size();
+
+/*
+ * returns the size of the signature created by the enclave
+ */
+int get_signature_size();
+
+/*
+ * returns the size of the public key
+ */
+int get_public_key_size();
+
+/*
+ * returns the size of the private key
+ */
+int get_private_key_size();
+
+/*
+ * @brief generates a secp256r1 key pair and returns it sealed by the TEE
+ *
+ * @param sealed buffer to hold the sealed key pair
+ * @param sealed_size size of the sealed key pair
+ *
+ * @returns SGX_SUCCESS on success, else sgx error code
+ */
+sgx_status_t generate_key_pair(uint8_t *sealed, uint32_t sealed_size);
+
+/*
+ * @brief returns the public key of the sealed key pair provided to the enclave
+ *
+ * @param sealed buffer containing the sealed key pair
+ * @param sealed_size size of the sealed key pair
+ * @param public_key buffer to hold the public key
+ *
+ * @returns SGX_SUCCESS on success, SGX_ERROR_INVALID_PARAMETER for invalid parameters, else sgx error code
+ */
+sgx_status_t get_public_key(const uint8_t *sealed, const uint32_t sealed_size, uint8_t *public_key);
+
+/*
+ * @brief signs the firmware provided by an authorized employee
+ *
+ * @param firmware buffer containing the firmware
+ * @param firmware_size size of the sealed key pair
+ * @param sealed buffer containing the sealed key pair
+ * @param sealed_size size of the sealed key pair
+ * @param public_key buffer with the employees public key; holds enclaves public key after successful signing
+ * @param signature buffer with the employees signature; holds the enclaves signature after successful signing
+ *
+ * @returns SGX_SUCCESS on success, SGX_ERROR_INVALID_PARAMETER for invalid parameters, else sgx error code
+ */
+sgx_status_t sign_firmware(const uint8_t *firmware, uint32_t firmware_size, const uint8_t *sealed, uint32_t sealed_size, uint8_t *public_key, uint8_t *signature);
+
+/*
+ * @brief verifies a firmware signature provided by an authorized employee or enclave
+ *
+ * @param firmware buffer containing the firmware
+ * @param firmware_size size of the sealed key pair or NULL
+ * @param sealed buffer containing the sealed key pair
+ * @param sealed_size size of the sealed key pair
+ * @param public_key buffer with the employees public key or NULL
+ * @param signature buffer with the employees signature
+ *
+ * @returns SGX_EC_VALID on success, SGX_EC_INVALID for invalid signatures, SGX_ERROR_INVALID_PARAMETER for invalid parameters, else sgx error code
+ */
+sgx_status_t verify_firmware(const uint8_t *firmware, uint32_t firmware_size, const uint8_t *sealed, uint32_t sealed_size, const uint8_t *public_key, const uint8_t *signature);
+
+#endif /* !_ENCLAVE_H_ */

7-SGX_Hands-on/src/setup

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+# download latest release
+wget -O /tmp/openssl-3.3.1.tar.gz https://github.com/openssl/openssl/releases/download/openssl-3.3.1/openssl-3.3.1.tar.gz
+
+# unpack source
+tar -xzvf /tmp/openssl-3.3.1.tar.gz -C /home/syssec/
+cd /home/syssec/openssl-3.3.1
+
+# build from source with static linking options
+./config --prefix=/usr/local/openssl-3.3.1 --static -static -fPIC
+make -j6
+
+# install openssl
+sudo make install
+

7-SGX_Hands-on/src/simulate

@@ -0,0 +1,74 @@
+#!/usr/bin/env sh
+set -u
+
+# colors
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+NC='\033[0m'
+
+# helper function
+print_and_execute() {
+    local color=$1
+    shift
+    echo "⚡ ${color}$@${NC}"
+    eval "$@"
+    return $?
+}
+
+# setup 
+TMP=/tmp/signatureproxy
+KEYDIR=../employee_keys
+mkdir -p $TMP
+
+########### Disclaimer #################
+# Die Story wurde von ChatGPT erstellt #
+########################################
+
+# simulation
+print_and_execute "$GREEN" "./signatureproxy proxysetup -pkey $TMP/proxy_private.bin > $TMP/proxy_public.pem"
+
+echo "At Embedded Solutions Inc., security was paramount. The company specialized in creating firmware for a wide range of embedded devices used in critical industries, from medical equipment to automotive systems. To protect their firmware, they had implemented a sophisticated signature proxy system using Intel's SGX enclave technology."
+echo "One bright morning, Alice, a senior engineer known for her meticulous work, arrived at her desk. She was tasked with signing the latest stable version of a critical medical device firmware that she had finished the previous night."
+
+echo "With the proxy ready, Alice compiled their latest stable version. This firmware would soon run on life-saving medical devices, a fact that weighed heavily on her as she meticulously checked every detail."
+print_and_execute "$GREEN" "dd if=/dev/urandom of=$TMP/firmware.bin bs=1M count=1 2> /dev/null"
+
+echo "Once satisfied with the build, Alice signed the firmware with her private key as an assurance to the company that the firmware came from a trusted source."
+print_and_execute "$GREEN" "./signatureproxy employee -ekey $KEYDIR/alice_private.pem -firm $TMP/firmware.bin > $TMP/signature_alice.der"
+
+echo "The firmware, along with Alice's signature, was then sent to the signature proxy. The proxy, acting as a vigilant guardian, verified Alice's signature against a list of authorized keys. Her identity confirmed, the proxy resigned the firmware with its own private key."
+print_and_execute "$GREEN" "cat $TMP/signature_alice.der | ./signatureproxy proxy -pkey $TMP/proxy_private.bin -epub $KEYDIR/alice_public.pem -firm $TMP/firmware.bin > $TMP/signature_for_alice.der"
+
+echo "The final step was crucial: verifying the signed firmware to ensure it was ready for deployment. The team couldn't afford any mistakes, knowing the firmware's destination were life-saving medical devices."
+print_and_execute "$GREEN" "cat $TMP/signature_for_alice.der | ./signatureproxy embedded -ppub $TMP/proxy_public.pem -firm $TMP/firmware.bin > /dev/null"
+
+echo "\nMeanwhile, in a dark corner of the tech world, Oskar, a disgruntled former employee, was plotting his revenge. He had managed to get his hands on an old private key. With malicious intent, he set out to sign a modified version of the firmware, hoping to bypass the security measures."
+
+echo "Oskar, driven by his vendetta, signed the firmware with his old private key, intending to trick the system and cause havoc."
+print_and_execute "$RED" "./signatureproxy employee -ekey $KEYDIR/oskar_private.pem -firm $TMP/firmware.bin > $TMP/signature_oskar.der"
+
+echo "With a smug grin, he tried to pass his signed firmware through the proxy. But the system was built to withstand such threats. The proxy, ever vigilant, scrutinized the incoming data."
+print_and_execute "$RED" "cat $TMP/signature_oskar.der | ./signatureproxy proxy -pkey $TMP/proxy_private.bin -epub $KEYDIR/oskar_public.pem -firm $TMP/firmware.bin > $TMP/signature_for_oskar.der"
+status=$?
+if [ $status -eq 0 ]; then
+    echo "Oskar's firmware signing attempt seemed successful. :("
+    exit 1
+else
+    echo "The proxy detected Oskar's unauthorized key and rejected the firmware. His malicious intent was thwarted, and the firmware remained secure."
+fi
+
+echo "With Oskar's attempt foiled, Embedded Solutions could breathe a sigh of relief. The integrity of their firmware was intact, safeguarded by the robust security measures of their signature proxy system. Alice and her team could continue their work with confidence, knowing that their systems were safe from internal and external threats."
+
+echo "\nIn the meantime, Bob, another trusted engineer, was working on a firmware update for the automotive sector. This update was equally critical and needed the same level of security scrutiny."
+print_and_execute "$GREEN" "dd if=/dev/urandom of=$TMP/firmware2.bin bs=1M count=1 2> /dev/null"
+
+echo "Bob finished his work and, following the security protocols, signed the new firmware with his private key."
+print_and_execute "$GREEN" "./signatureproxy employee -ekey $KEYDIR/bob_private.pem -firm $TMP/firmware2.bin > $TMP/signature_bob.der"
+
+echo "The signed firmware was then sent to the signature proxy. As expected, the proxy verified Bob's signature and signed the firmware with its private key, ensuring the update's authenticity."
+print_and_execute "$GREEN" "cat $TMP/signature_bob.der | ./signatureproxy proxy -pkey $TMP/proxy_private.bin -epub $KEYDIR/bob_public.pem -firm $TMP/firmware2.bin > $TMP/signature_for_bob.der"
+
+echo "The final verification process confirmed that Bob's firmware update was secure and ready for deployment."
+print_and_execute "$GREEN" "cat $TMP/signature_for_bob.der | ./signatureproxy embedded -ppub $TMP/proxy_public.pem -firm $TMP/firmware2.bin > /dev/null"
+
+echo "This concludes the story of Alice, Oskar, Bob, and the secure firmware signing process at Embedded Solutions Inc. Through the diligent efforts of trusted employees and advanced security technology, the integrity and safety of their embedded devices were preserved."

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/App/App.cpp

@@ -1,252 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-
-# include <unistd.h>
-# include <pwd.h>
-# define MAX_PATH FILENAME_MAX
-
-#include "sgx_urts.h"
-#include "App.h"
-#include "Enclave_u.h"
-
-/* Global EID shared by multiple threads */
-sgx_enclave_id_t global_eid = 0;
-
-typedef struct _sgx_errlist_t {
-    sgx_status_t err;
-    const char *msg;
-    const char *sug; /* Suggestion */
-} sgx_errlist_t;
-
-/* Error code returned by sgx_create_enclave */
-static sgx_errlist_t sgx_errlist[] = {
-    {
-        SGX_ERROR_UNEXPECTED,
-        "Unexpected error occurred.",
-        NULL
-    },
-    {
-        SGX_ERROR_INVALID_PARAMETER,
-        "Invalid parameter.",
-        NULL
-    },
-    {
-        SGX_ERROR_OUT_OF_MEMORY,
-        "Out of memory.",
-        NULL
-    },
-    {
-        SGX_ERROR_ENCLAVE_LOST,
-        "Power transition occurred.",
-        "Please refer to the sample \"PowerTransition\" for details."
-    },
-    {
-        SGX_ERROR_INVALID_ENCLAVE,
-        "Invalid enclave image.",
-        NULL
-    },
-    {
-        SGX_ERROR_INVALID_ENCLAVE_ID,
-        "Invalid enclave identification.",
-        NULL
-    },
-    {
-        SGX_ERROR_INVALID_SIGNATURE,
-        "Invalid enclave signature.",
-        NULL
-    },
-    {
-        SGX_ERROR_OUT_OF_EPC,
-        "Out of EPC memory.",
-        NULL
-    },
-    {
-        SGX_ERROR_NO_DEVICE,
-        "Invalid SGX device.",
-        "Please make sure SGX module is enabled in the BIOS, and install SGX driver afterwards."
-    },
-    {
-        SGX_ERROR_MEMORY_MAP_CONFLICT,
-        "Memory map conflicted.",
-        NULL
-    },
-    {
-        SGX_ERROR_INVALID_METADATA,
-        "Invalid enclave metadata.",
-        NULL
-    },
-    {
-        SGX_ERROR_DEVICE_BUSY,
-        "SGX device was busy.",
-        NULL
-    },
-    {
-        SGX_ERROR_INVALID_VERSION,
-        "Enclave version was invalid.",
-        NULL
-    },
-    {
-        SGX_ERROR_INVALID_ATTRIBUTE,
-        "Enclave was not authorized.",
-        NULL
-    },
-    {
-        SGX_ERROR_ENCLAVE_FILE_ACCESS,
-        "Can't open enclave file.",
-        NULL
-    },
-};
-
-/* Check error conditions for loading enclave */
-void print_error_message(sgx_status_t ret)
-{
-    size_t idx = 0;
-    size_t ttl = sizeof sgx_errlist/sizeof sgx_errlist[0];
-
-    for (idx = 0; idx < ttl; idx++) {
-        if(ret == sgx_errlist[idx].err) {
-            if(NULL != sgx_errlist[idx].sug)
-                printf("Info: %s\n", sgx_errlist[idx].sug);
-            printf("Error: %s\n", sgx_errlist[idx].msg);
-            break;
-        }
-    }
-    
-    if (idx == ttl)
-    	printf("Error code is 0x%X. Please refer to the \"Intel SGX SDK Developer Reference\" for more details.\n", ret);
-}
-
-/* Initialize the enclave:
- *   Step 1: try to retrieve the launch token saved by last transaction
- *   Step 2: call sgx_create_enclave to initialize an enclave instance
- *   Step 3: save the launch token if it is updated
- */
-int initialize_enclave(void)
-{
-    char token_path[MAX_PATH] = {'\0'};
-    sgx_launch_token_t token = {0};
-    sgx_status_t ret = SGX_ERROR_UNEXPECTED;
-    int updated = 0;
-    
-    /* Step 1: try to retrieve the launch token saved by last transaction 
-     *         if there is no token, then create a new one.
-     */
-    /* try to get the token saved in $HOME */
-    const char *home_dir = getpwuid(getuid())->pw_dir;
-    
-    if (home_dir != NULL && 
-        (strlen(home_dir)+strlen("/")+sizeof(TOKEN_FILENAME)+1) <= MAX_PATH) {
-        /* compose the token path */
-        strncpy(token_path, home_dir, strlen(home_dir));
-        strncat(token_path, "/", strlen("/"));
-        strncat(token_path, TOKEN_FILENAME, sizeof(TOKEN_FILENAME)+1);
-    } else {
-        /* if token path is too long or $HOME is NULL */
-        strncpy(token_path, TOKEN_FILENAME, sizeof(TOKEN_FILENAME));
-    }
-
-    FILE *fp = fopen(token_path, "rb");
-    if (fp == NULL && (fp = fopen(token_path, "wb")) == NULL) {
-        printf("Warning: Failed to create/open the launch token file \"%s\".\n", token_path);
-    }
-
-    if (fp != NULL) {
-        /* read the token from saved file */
-        size_t read_num = fread(token, 1, sizeof(sgx_launch_token_t), fp);
-        if (read_num != 0 && read_num != sizeof(sgx_launch_token_t)) {
-            /* if token is invalid, clear the buffer */
-            memset(&token, 0x0, sizeof(sgx_launch_token_t));
-            printf("Warning: Invalid launch token read from \"%s\".\n", token_path);
-        }
-    }
-    /* Step 2: call sgx_create_enclave to initialize an enclave instance */
-    /* Debug Support: set 2nd parameter to 1 */
-    ret = sgx_create_enclave(ENCLAVE_FILENAME, SGX_DEBUG_FLAG, &token, &updated, &global_eid, NULL);
-    if (ret != SGX_SUCCESS) {
-        print_error_message(ret);
-        if (fp != NULL) fclose(fp);
-        return -1;
-    }
-
-    /* Step 3: save the launch token if it is updated */
-    if (updated == FALSE || fp == NULL) {
-        /* if the token is not updated, or file handler is invalid, do not perform saving */
-        if (fp != NULL) fclose(fp);
-        return 0;
-    }
-
-    /* reopen the file with write capablity */
-    fp = freopen(token_path, "wb", fp);
-    if (fp == NULL) return 0;
-    size_t write_num = fwrite(token, 1, sizeof(sgx_launch_token_t), fp);
-    if (write_num != sizeof(sgx_launch_token_t))
-        printf("Warning: Failed to save launch token to \"%s\".\n", token_path);
-    fclose(fp);
-    return 0;
-}
-
-/* OCall functions */
-void ocall_print_string(const char *str)
-{
-    /* Proxy/Bridge will check the length and null-terminate 
-     * the input string to prevent buffer overflow. 
-     */
-    printf("%s", str);
-}
-
-
-/* Application entry */
-int SGX_CDECL main(int argc, char *argv[])
-{
-    (void)(argc);
-    (void)(argv);
-
-
-    /* Initialize the enclave */
-    if(initialize_enclave() < 0){
-        printf("Enter a character before exit ...\n");
-        getchar();
-        return -1; 
-    }
- 
-    printf_helloworld(global_eid);
-
-    /* Destroy the enclave */
-    sgx_destroy_enclave(global_eid);
-    
-    return 0;
-}
-

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/App/App.h

@@ -1,65 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-#ifndef _APP_H_
-#define _APP_H_
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-
-#include "sgx_error.h"       /* sgx_status_t */
-#include "sgx_eid.h"     /* sgx_enclave_id_t */
-
-#ifndef TRUE
-# define TRUE 1
-#endif
-
-#ifndef FALSE
-# define FALSE 0
-#endif
-
-# define TOKEN_FILENAME   "enclave.token"
-# define ENCLAVE_FILENAME "enclave.signed.so"
-
-extern sgx_enclave_id_t global_eid;    /* global enclave id */
-
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-#if defined(__cplusplus)
-}
-#endif
-
-#endif /* !_APP_H_ */

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/Enclave/Enclave.cpp

@@ -1,57 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-#include <stdarg.h>
-#include <stdio.h>      /* vsnprintf */
-
-#include "Enclave.h"
-#include "Enclave_t.h"  /* print_string */
-
-/* 
- * printf: 
- *   Invokes OCALL to display the enclave buffer to the terminal.
- */
-void printf(const char *fmt, ...)
-{
-    char buf[BUFSIZ] = {'\0'};
-    va_list ap;
-    va_start(ap, fmt);
-    vsnprintf(buf, BUFSIZ, fmt, ap);
-    va_end(ap);
-    ocall_print_string(buf);
-}
-
-void printf_helloworld()
-{
-    printf("Hello World\n");
-}
-

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/Enclave/Enclave.h

@@ -1,50 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-#ifndef _ENCLAVE_H_
-#define _ENCLAVE_H_
-
-#include <stdlib.h>
-#include <assert.h>
-
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-void printf(const char *fmt, ...);
-void printf_helloworld();
-
-#if defined(__cplusplus)
-}
-#endif
-
-#endif /* !_ENCLAVE_H_ */

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/Enclave/Enclave_private.pem

@@ -1,39 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIG4gIBAAKCAYEAroOogvsj/fZDZY8XFdkl6dJmky0lRvnWMmpeH41Bla6U1qLZ
-AmZuyIF+mQC/cgojIsrBMzBxb1kKqzATF4+XwPwgKz7fmiddmHyYz2WDJfAjIveJ
-ZjdMjM4+EytGlkkJ52T8V8ds0/L2qKexJ+NBLxkeQLfV8n1mIk7zX7jguwbCG1Pr
-nEMdJ3Sew20vnje+RsngAzdPChoJpVsWi/K7cettX/tbnre1DL02GXc5qJoQYk7b
-3zkmhz31TgFrd9VVtmUGyFXAysuSAb3EN+5VnHGr0xKkeg8utErea2FNtNIgua8H
-ONfm9Eiyaav1SVKzPHlyqLtcdxH3I8Wg7yqMsaprZ1n5A1v/levxnL8+It02KseD
-5HqV4rf/cImSlCt3lpRg8U5E1pyFQ2IVEC/XTDMiI3c+AR+w2jSRB3Bwn9zJtFlW
-KHG3m1xGI4ck+Lci1JvWWLXQagQSPtZTsubxTQNx1gsgZhgv1JHVZMdbVlAbbRMC
-1nSuJNl7KPAS/VfzAgEDAoIBgHRXxaynbVP5gkO0ug6Qw/E27wzIw4SmjsxG6Wpe
-K7kfDeRskKxESdsA/xCrKkwGwhcx1iIgS5+Qscd1Yg+1D9X9asd/P7waPmWoZd+Z
-AhlKwhdPsO7PiF3e1AzHhGQwsUTt/Y/aSI1MpHBvy2/s1h9mFCslOUxTmWw0oj/Q
-ldIEgWeNR72CE2+jFIJIyml6ftnb6qzPiga8Bm48ubKh0kvySOqnkmnPzgh+JBD6
-JnBmtZbfPT97bwTT+N6rnPqOOApvfHPf15kWI8yDbprG1l4OCUaIUH1AszxLd826
-5IPM+8gINLRDP1MA6azECPjTyHXhtnSIBZCyWSVkc05vYmNXYUNiXWMajcxW9M02
-wKzFELO8NCEAkaTPxwo4SCyIjUxiK1LbQ9h8PSy4c1+gGP4LAMR8xqP4QKg6zdu9
-osUGG/xRe/uufgTBFkcjqBHtK5L5VI0jeNIUAgW/6iNbYXjBMJ0GfauLs+g1VsOm
-WfdgXzsb9DYdMa0OXXHypmV4GwKBwQDUwQj8RKJ6c8cT4vcWCoJvJF00+RFL+P3i
-Gx2DLERxRrDa8AVGfqaCjsR+3vLgG8V/py+z+dxZYSqeB80Qeo6PDITcRKoeAYh9
-xlT3LJOS+k1cJcEmlbbO2IjLkTmzSwa80fWexKu8/Xv6vv15gpqYl1ngYoqJM3pd
-vzmTIOi7MKSZ0WmEQavrZj8zK4endE3v0eAEeQ55j1GImbypSf7Idh7wOXtjZ7WD
-Dg6yWDrri+AP/L3gClMj8wsAxMV4ZR8CgcEA0fzDHkFa6raVOxWnObmRoDhAtE0a
-cjUj976NM5yyfdf2MrKy4/RhdTiPZ6b08/lBC/+xRfV3xKVGzacm6QjqjZrUpgHC
-0LKiZaMtccCJjLtPwQd0jGQEnKfMFaPsnhOc5y8qVkCzVOSthY5qhz0XNotHHFmJ
-gffVgB0iqrMTvSL7IA2yqqpOqNRlhaYhNl8TiFP3gIeMtVa9rZy31JPgT2uJ+kfo
-gV7sdTPEjPWZd7OshGxWpT6QfVDj/T9T7L6tAoHBAI3WBf2DFvxNL2KXT2QHAZ9t
-k3imC4f7U+wSE6zILaDZyzygA4RUbwG0gv8/TJVn2P/Eynf76DuWHGlaiLWnCbSz
-Az2DHBQBBaku409zDQym3j1ugMRjzzSQWzJg0SIyBH3hTmnYcn3+Uqcp/lEBvGW6
-O+rsXFt3pukqJmIV8HzLGGaLm62BHUeZf3dyWm+i3p/hQAL7Xvu04QW70xuGqdr5
-afV7p5eaeQIJXyGQJ0eylV/90+qxjMKiB1XYg6WYvwKBwQCL/ddpgOdHJGN8uRom
-e7Zq0Csi3hGheMKlKbN3vcxT5U7MdyHtTZZOJbTvxKNNUNYH/8uD+PqDGNneb29G
-BfGzvI3EASyLIcGZF3OhKwZd0jUrWk2y7Vhob91jwp2+t73vdMbkKyI4mHOuXvGv
-fg95si9oO7EBT+Oqvhccd2J+F1IVXncccYnF4u5ZGWt5lLewN/pVr7MjjykeaHqN
-t+rfnQam2psA6fL4zS2zTmZPzR2tnY8Y1GBTi0Ko1OKd1HMCgcAb5cB/7/AQlhP9
-yQa04PLH9ygQkKKptZp7dy5WcWRx0K/hAHRoi2aw1wZqfm7VBNu2SLcs90kCCCxp
-6C5sfJi6b8NpNbIPC+sc9wsFr7pGo9SFzQ78UlcWYK2Gu2FxlMjonhka5hvo4zvg
-WxlpXKEkaFt3gLd92m/dMqBrHfafH7VwOJY2zT3WIpjwuk0ZzmRg5p0pG/svVQEH
-NZmwRwlopysbR69B/n1nefJ84UO50fLh5s5Zr3gBRwbWNZyzhXk=
------END RSA PRIVATE KEY-----

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/.gitignore

@@ -1,55 +0,0 @@
-# Prerequisites
-*.d
-
-# Object files
-*.o
-*.ko
-*.obj
-*.elf
-
-# Linker output
-*.ilk
-*.map
-*.exp
-
-# Precompiled Headers
-*.gch
-*.pch
-
-# Libraries
-*.lib
-*.a
-*.la
-*.lo
-
-# Shared objects (inc. Windows DLLs)
-*.dll
-*.so
-*.so.*
-*.dylib
-
-# Executables
-*.exe
-*.out
-*.app
-*.i*86
-*.x86_64
-*.hex
-
-# Debug files
-*.dSYM/
-*.su
-*.idb
-*.pdb
-
-# Kernel Module Compile Results
-*.mod*
-*.cmd
-.tmp_versions/
-modules.order
-Module.symvers
-Mkfile.old
-dkms.conf
-
-# Apple .DS_Store files
-.DS_Store

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/Makefile

@@ -1,209 +0,0 @@
-#
-# Copyright (C) 2011-2016 Intel Corporation. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-#   * Redistributions of source code must retain the above copyright
-#     notice, this list of conditions and the following disclaimer.
-#   * Redistributions in binary form must reproduce the above copyright
-#     notice, this list of conditions and the following disclaimer in
-#     the documentation and/or other materials provided with the
-#     distribution.
-#   * Neither the name of Intel Corporation nor the names of its
-#     contributors may be used to endorse or promote products derived
-#     from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#
-#
-
-######## SGX SDK Settings ########
-
-SGX_SDK ?= /opt/intel/sgxsdk
-SGX_MODE ?= SIM
-SGX_ARCH ?= x64
-
-ifeq ($(shell getconf LONG_BIT), 32)
-	SGX_ARCH := x86
-else ifeq ($(findstring -m32, $(CXXFLAGS)), -m32)
-	SGX_ARCH := x86
-endif
-
-ifeq ($(SGX_ARCH), x86)
-	SGX_COMMON_CFLAGS := -m32
-	SGX_LIBRARY_PATH := $(SGX_SDK)/lib
-	SGX_ENCLAVE_SIGNER := $(SGX_SDK)/bin/x86/sgx_sign
-	SGX_EDGER8R := $(SGX_SDK)/bin/x86/sgx_edger8r
-else
-	SGX_COMMON_CFLAGS := -m64
-	SGX_LIBRARY_PATH := $(SGX_SDK)/lib64
-	SGX_ENCLAVE_SIGNER := $(SGX_SDK)/bin/x64/sgx_sign
-	SGX_EDGER8R := $(SGX_SDK)/bin/x64/sgx_edger8r
-endif
-
-ifeq ($(SGX_DEBUG), 1)
-ifeq ($(SGX_PRERELEASE), 1)
-$(error Cannot set SGX_DEBUG and SGX_PRERELEASE at the same time!!)
-endif
-endif
-
-ifeq ($(SGX_DEBUG), 1)
-		SGX_COMMON_CFLAGS += -O0 -g
-else
-		SGX_COMMON_CFLAGS += -O2
-endif
-
-######## App Settings ########
-
-ifneq ($(SGX_MODE), HW)
-	Urts_Library_Name := sgx_urts_sim
-else
-	Urts_Library_Name := sgx_urts
-endif
-
-App_Cpp_Files := app/app.cpp app/utils.cpp
-App_Include_Paths := -Iapp -I$(SGX_SDK)/include -Iinclude -Itest
-
-App_C_Flags := $(SGX_COMMON_CFLAGS) -fPIC -Wno-attributes $(App_Include_Paths)
-
-# Three configuration modes - Debug, prerelease, release
-#   Debug - Macro DEBUG enabled.
-#   Prerelease - Macro NDEBUG and EDEBUG enabled.
-#   Release - Macro NDEBUG enabled.
-ifeq ($(SGX_DEBUG), 1)
-		App_C_Flags += -DDEBUG -UNDEBUG -UEDEBUG
-else ifeq ($(SGX_PRERELEASE), 1)
-		App_C_Flags += -DNDEBUG -DEDEBUG -UDEBUG
-else
-		App_C_Flags += -DNDEBUG -UEDEBUG -UDEBUG
-endif
-
-App_Cpp_Flags := $(App_C_Flags) -std=c++11
-App_Link_Flags := $(SGX_COMMON_CFLAGS) -L$(SGX_LIBRARY_PATH) -l$(Urts_Library_Name) -lpthread
-
-ifneq ($(SGX_MODE), HW)
-	App_Link_Flags += -lsgx_uae_service_sim
-else
-	App_Link_Flags += -lsgx_uae_service
-endif
-
-App_Cpp_Objects := $(App_Cpp_Files:.cpp=.o)
-
-App_Name := sgx-wallet
-
-######## Enclave Settings ########
-
-ifneq ($(SGX_MODE), HW)
-	Trts_Library_Name := sgx_trts_sim
-	Service_Library_Name := sgx_tservice_sim
-else
-	Trts_Library_Name := sgx_trts
-	Service_Library_Name := sgx_tservice
-endif
-Crypto_Library_Name := sgx_tcrypto
-
-Enclave_Cpp_Files := enclave/enclave.cpp enclave/sealing/sealing.cpp
-Enclave_Include_Paths := -Ienclave -Iinclude -I$(SGX_SDK)/include -I$(SGX_SDK)/include/tlibc -I$(SGX_SDK)/include/stlport
-
-Enclave_C_Flags := $(SGX_COMMON_CFLAGS) -nostdinc -fvisibility=hidden -fpie -fstack-protector $(Enclave_Include_Paths)
-Enclave_Cpp_Flags := $(Enclave_C_Flags) -std=c++03 -nostdinc++
-Enclave_Link_Flags := $(SGX_COMMON_CFLAGS) -Wl,--no-undefined -nostdlib -nodefaultlibs -nostartfiles -L$(SGX_LIBRARY_PATH) \
-	-Wl,--whole-archive -l$(Trts_Library_Name) -Wl,--no-whole-archive \
-	-Wl,--start-group -lsgx_tstdc -lsgx_tstdcxx -l$(Crypto_Library_Name) -l$(Service_Library_Name) -Wl,--end-group \
-	-Wl,-Bstatic -Wl,-Bsymbolic -Wl,--no-undefined \
-	-Wl,-pie,-eenclave_entry -Wl,--export-dynamic  \
-	-Wl,--defsym,__ImageBase=0
-	# -Wl,--version-script=Enclave/Enclave.lds
-
-Enclave_Cpp_Objects := $(Enclave_Cpp_Files:.cpp=.o)
-
-Enclave_Name := enclave.so
-Signed_Enclave_Name := enclave.signed.so
-Enclave_Config_File := enclave/enclave.config.xml
-
-ifeq ($(SGX_MODE), HW)
-ifneq ($(SGX_DEBUG), 1)
-ifneq ($(SGX_PRERELEASE), 1)
-Build_Mode = HW_RELEASE
-endif
-endif
-endif
-
-
-.PHONY: all run
-
-ifeq ($(Build_Mode), HW_RELEASE)
-all: $(App_Name) $(Enclave_Name)
-	@echo "The project has been built in release hardware mode."
-	@echo "Please sign the $(Enclave_Name) first with your signing key before you run the $(App_Name) to launch and access the enclave."
-	@echo "To sign the enclave use the command:"
-	@echo "   $(SGX_ENCLAVE_SIGNER) sign -key <your key> -enclave $(Enclave_Name) -out <$(Signed_Enclave_Name)> -config $(Enclave_Config_File)"
-	@echo "You can also sign the enclave using an external signing tool. See User's Guide for more details."
-	@echo "To build the project in simulation mode set SGX_MODE=SIM. To build the project in prerelease mode set SGX_PRERELEASE=1 and SGX_MODE=HW."
-else
-all: $(App_Name) $(Signed_Enclave_Name)
-endif
-
-run: all
-ifneq ($(Build_Mode), HW_RELEASE)
-	@$(CURDIR)/$(App_Name)
-	@echo "RUN  =>  $(App_Name) [$(SGX_MODE)|$(SGX_ARCH), OK]"
-endif
-
-######## App Objects ########
-
-app/enclave_u.c: $(SGX_EDGER8R) enclave/enclave.edl
-	@cd app && $(SGX_EDGER8R) --untrusted ../enclave/enclave.edl --search-path ../enclave --search-path $(SGX_SDK)/include
-	@echo "GEN  =>  $@"
-
-app/enclave_u.o: app/enclave_u.c
-	@$(CC) $(App_C_Flags) -c $< -o $@
-	@echo "CC   <=  $<"
-
-app/%.o: app/%.cpp
-	@$(CXX) $(App_Cpp_Flags) -c $< -o $@
-	@echo "CXX  <=  $<"
-
-$(App_Name): app/enclave_u.o $(App_Cpp_Objects)
-	@$(CXX) $^ -o $@ $(App_Link_Flags)
-	@echo "LINK =>  $@"
-
-
-######## Enclave Objects ########
-
-enclave/enclave_t.c: $(SGX_EDGER8R) enclave/enclave.edl
-	@cd enclave && $(SGX_EDGER8R) --trusted ../enclave/enclave.edl --search-path ../enclave --search-path $(SGX_SDK)/include
-	@echo "GEN  =>  $@"
-
-enclave/enclave_t.o: enclave/enclave_t.c
-	@$(CC) $(Enclave_C_Flags) -c $< -o $@
-	@echo "CC   <=  $<"
-
-enclave/%.o: enclave/%.cpp
-	@$(CXX) $(Enclave_Cpp_Flags) -c $< -o $@
-	@echo "CXX  <=  $<"
-
-$(Enclave_Name): enclave/enclave_t.o $(Enclave_Cpp_Objects)
-	@$(CXX) $^ -o $@ $(Enclave_Link_Flags)
-	@echo "LINK =>  $@"
-
-$(Signed_Enclave_Name): $(Enclave_Name)
-	@$(SGX_ENCLAVE_SIGNER) sign -key enclave/enclave_private.pem -enclave $(Enclave_Name) -out $@ -config $(Enclave_Config_File)
-	@echo "SIGN =>  $@"
-
-.PHONY: clean
-
-clean:
-	@rm -f $(App_Name) $(Enclave_Name) $(Signed_Enclave_Name) $(App_Cpp_Objects) app/enclave_u.* $(Enclave_Cpp_Objects) enclave/enclave_t.*

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/app/app.cpp

@@ -1,225 +0,0 @@
-#include "enclave_u.h"
-#include "sgx_urts.h"
-
-#include <cstring>
-#include <fstream>
-#include <getopt.h>
-
-#include "app.h"
-#include "utils.h"
-#include "wallet.h"
-#include "enclave.h"
-
-using namespace std;
-
-
-// OCALLs implementation
-int ocall_save_wallet(const uint8_t* sealed_data, const size_t sealed_size) {
-    ofstream file(WALLET_FILE, ios::out | ios::binary);
-    if (file.fail()) {return 1;}
-    file.write((const char*) sealed_data, sealed_size);
-    file.close();
-    return 0;
-}
-
-int ocall_load_wallet(uint8_t* sealed_data, const size_t sealed_size) {
-    ifstream file(WALLET_FILE, ios::in | ios::binary);
-    if (file.fail()) {return 1;}
-    file.read((char*) sealed_data, sealed_size);
-    file.close();
-    return 0;
-}
-
-int ocall_is_wallet(void) {
-    ifstream file(WALLET_FILE, ios::in | ios::binary);
-    if (file.fail()) {return 0;} // failure means no wallet found
-    file.close();
-    return 1;
-}
-
-int main(int argc, char** argv) {
-
-    sgx_enclave_id_t eid = 0;
-    sgx_launch_token_t token = {0};
-    int updated, ret;
-    sgx_status_t ecall_status, enclave_status;
-
-    enclave_status = sgx_create_enclave(ENCLAVE_FILE, SGX_DEBUG_FLAG, &token, &updated, &eid, NULL);
-    if(enclave_status != SGX_SUCCESS) {
-        error_print("Fail to initialize enclave."); 
-        return -1;
-    }
-    info_print("Enclave successfully initilised.");
-
-    const char* options = "hvn:p:c:sax:y:z:r:";
-    opterr=0; // prevent 'getopt' from printing err messages
-    char err_message[100];
-    int opt, stop=0;
-    int h_flag=0, v_flag=0, s_flag=0, a_flag=0;
-    char * n_value=NULL, *p_value=NULL, *c_value=NULL, *x_value=NULL, *y_value=NULL, *z_value=NULL, *r_value=NULL;
-  
-    // read user input
-    while ((opt = getopt(argc, argv, options)) != -1) {
-        switch (opt) {
-            // help
-            case 'h':
-                h_flag = 1;
-                break;
-
-            // create new wallet
-            case 'n':
-                n_value = optarg;
-                break;
-
-            // master-password
-            case 'p':
-                p_value = optarg;
-                break;
-
-            // change master-password
-            case 'c':
-                c_value = optarg;
-                break;
-
-            // show wallet
-            case 's':
-                s_flag = 1;
-                break;
-
-            // add item
-            case 'a': // add item flag
-                a_flag = 1;
-                break;
-            case 'x': // item's title
-                x_value = optarg;
-                break;
-            case 'y': // item's username
-                y_value = optarg;
-                break;
-            case 'z': // item's password
-                z_value = optarg;
-                break;
-
-            // remove item
-            case 'r':
-                r_value = optarg;
-                break;
-
-            // exceptions
-            case '?':
-                if (optopt == 'n' || optopt == 'p' || optopt == 'c' || optopt == 'r' ||
-                    optopt == 'x' || optopt == 'y' || optopt == 'z'
-                ) {
-                    sprintf(err_message, "Option -%c requires an argument.", optopt);
-                }
-                else if (isprint(optopt)) {
-                    sprintf(err_message, "Unknown option `-%c'.", optopt);
-                }
-                else {
-                    sprintf(err_message, "Unknown option character `\\x%x'.",optopt);
-                }
-                stop = 1;
-                error_print(err_message);
-                error_print("Program exiting.");
-                break;
-
-            default:
-                error_print("Unknown option.");
-        }
-    }
-
-    // perform actions
-    if (stop != 1) {
-        // show help
-        if (h_flag) {
-            show_help();
-        }
-
-        // create new wallet
-        else if(n_value!=NULL) {
-            ecall_status = ecall_create_wallet(eid, &ret, n_value);
-            if (ecall_status != SGX_SUCCESS || is_error(ret)) {
-                error_print("Fail to create new wallet.");
-            }
-            else {
-                info_print("Wallet successfully created.");
-            }
-        }
-
-        // change master-password
-        else if (p_value!=NULL && c_value!=NULL) {
-            ecall_status = ecall_change_master_password(eid, &ret, p_value, c_value);
-            if (ecall_status != SGX_SUCCESS || is_error(ret)) {
-                error_print("Fail change master-password.");
-            }
-            else {
-                info_print("Master-password successfully changed.");
-            }
-        }
-
-        // show wallet
-        else if(p_value!=NULL && s_flag) {
-            wallet_t* wallet = (wallet_t*)malloc(sizeof(wallet_t));
-            ecall_status = ecall_show_wallet(eid, &ret, p_value, wallet, sizeof(wallet_t));
-            if (ecall_status != SGX_SUCCESS || is_error(ret)) {
-                error_print("Fail to retrieve wallet.");
-            }
-            else {
-                info_print("Wallet successfully retrieved.");
-                print_wallet(wallet);
-            }
-            free(wallet);
-        }
-
-        // add item
-        else if (p_value!=NULL && a_flag && x_value!=NULL && y_value!=NULL && z_value!=NULL) {
-            item_t* new_item = (item_t*)malloc(sizeof(item_t));
-            strcpy(new_item->title, x_value); 
-            strcpy(new_item->username, y_value); 
-            strcpy(new_item->password, z_value);
-            ecall_status = ecall_add_item(eid, &ret, p_value, new_item, sizeof(item_t));
-            if (ecall_status != SGX_SUCCESS || is_error(ret)) {
-                error_print("Fail to add new item to wallet.");
-            }
-            else {
-                info_print("Item successfully added to the wallet.");
-            }
-            free(new_item);
-        }
-
-        // remove item
-        else if (p_value!=NULL && r_value!=NULL) {
-            char* p_end;
-            int index = (int)strtol(r_value, &p_end, 10);
-            if (r_value == p_end) {
-                error_print("Option -r requires an integer argument.");
-            }
-            else {
-                ecall_status = ecall_remove_item(eid, &ret, p_value, index);
-                if (ecall_status != SGX_SUCCESS || is_error(ret)) {
-                    error_print("Fail to remove item.");
-                }
-                else {
-                    info_print("Item successfully removed from the wallet.");
-                }
-            }
-        }
-
-        // display help
-        else {
-            error_print("Wrong inputs.");
-            show_help();
-        }
-    }
-    
-    // destroy enclave
-    enclave_status = sgx_destroy_enclave(eid);
-    if(enclave_status != SGX_SUCCESS) {
-        error_print("Fail to destroy enclave."); 
-        return -1;
-    }
-    info_print("Enclave successfully destroyed.");
-
-    info_print("Program exit success.");
-    return 0;
-}

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/app/app.h

@@ -1,13 +0,0 @@
-#ifndef APP_H_
-#define APP_H_
-
-
-/***************************************************
- * config.
- ***************************************************/
-#define APP_NAME "sgx-wallet"
-#define ENCLAVE_FILE "enclave.signed.so"
-#define WALLET_FILE "wallet.seal"
-
-
-#endif // APP_H_

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/app/utils.cpp

@@ -1,101 +0,0 @@
-#include <stdio.h>
-#include <cstring>
-
-#include "utils.h"
-#include "app.h"
-#include "wallet.h"
-#include "enclave.h"
-
-void info_print(const char* str) {
-    printf("[INFO] %s\n", str);
-}
-
-void warning_print(const char* str) {
-    printf("[WARNING] %s\n", str);
-}
-
-void error_print(const char* str) {
-    printf("[ERROR] %s\n", str);
-}
-
-void print_wallet(const wallet_t* wallet) {
-    printf("\n-----------------------------------------\n\n");
-    printf("Simple password wallet based on Intel SGX.\n\n");
-    printf("Number of items: %lu\n\n", wallet->size);
-    for (int i = 0; i < wallet->size; ++i) {
-        printf("#%d -- %s\n", i, wallet->items[i].title);
-        printf("[username:] %s\n", wallet->items[i].username);
-        printf("[password:] %s\n", wallet->items[i].password);
-        printf("\n");
-    }
-    printf("\n------------------------------------------\n\n");
-}
-
-int is_error(int error_code) {
-    char err_message[100];
-
-    // check error case
-    switch(error_code) {
-        case RET_SUCCESS:
-            return 0;
-
-        case ERR_PASSWORD_OUT_OF_RANGE:
-            sprintf(err_message, "Password should be at least 8 characters long and at most %d.", MAX_ITEM_SIZE);
-            break;
-
-        case ERR_WALLET_ALREADY_EXISTS:
-            sprintf(err_message, "Wallet already exists: delete file '%s' first.", WALLET_FILE);
-            break;
-
-        case ERR_CANNOT_SAVE_WALLET:
-            strcpy(err_message, "Coud not save wallet.");
-            break;
-
-        case ERR_CANNOT_LOAD_WALLET:
-            strcpy(err_message, "Coud not load wallet.");
-            break;
-
-        case ERR_WRONG_MASTER_PASSWORD:
-            strcpy(err_message, "Wrong master password."); 
-            break;
-
-        case ERR_WALLET_FULL:
-            sprintf(err_message, "Wallet full (maximum number of item: %d).", MAX_ITEMS);
-            break;
-
-        case ERR_ITEM_DOES_NOT_EXIST: 
-            strcpy(err_message, "Item does not exist."); 
-            break;
-
-        case ERR_ITEM_TOO_LONG:
-            sprintf(err_message, "Item too longth (maximum size: %d).", MAX_ITEM_SIZE); 
-            break;
-
-        case ERR_FAIL_SEAL:
-            sprintf(err_message, "Fail to seal wallet."); 
-            break;
-
-        case ERR_FAIL_UNSEAL:
-            sprintf(err_message, "Fail to unseal wallet."); 
-            break;
-
-        default:
-            sprintf(err_message, "Unknown error."); 
-    }
-
-    // print error message
-    error_print(err_message);
-    return 1;
-}
-
-void show_help() {
-	const char* command = "[-h Show this screen] [-v Show version] [-s Show wallet] " \
-		"[-n master-password] [-p master-password -c new-master-password]" \
-		"[-p master-password -a -x items_title -y items_username -z toitems_password]" \
-		"[-p master-password -r items_index]";
-	printf("\nusage: %s %s\n\n", APP_NAME, command);
-}
-
-
-
-

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/app/utils.h

@@ -1,21 +0,0 @@
-#ifndef UTIL_H_
-#define UTIL_H_
-
-#include "wallet.h"
-
-void info_print(const char* str);
-
-void warning_print(const char* str);
-
-void error_print(const char* str);
-
-void print_wallet(const wallet_t* wallet);
-
-int is_error(int error_code);
-
-void show_help();
-
-void show_version();
-
-
-#endif // UTIL_H_

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/enclave/enclave.config.xml

@@ -1,12 +0,0 @@
-<!-- Please refer to User's Guide for the explanation of each field -->
-<EnclaveConfiguration>
-  <ProdID>0</ProdID>
-  <ISVSVN>0</ISVSVN>
-  <StackMaxSize>0x40000</StackMaxSize>
-  <HeapMaxSize>0x100000</HeapMaxSize>
-  <TCSNum>10</TCSNum>
-  <TCSPolicy>1</TCSPolicy>
-  <DisableDebug>0</DisableDebug>
-  <MiscSelect>0</MiscSelect>
-  <MiscMask>0xFFFFFFFF</MiscMask>
-</EnclaveConfiguration>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/enclave/enclave.cpp

@@ -1,403 +0,0 @@
-#include "enclave_t.h"
-#include "string.h"
-
-#include "enclave.h"
-#include "wallet.h"
-
-#include "sgx_tseal.h"
-#include "sealing/sealing.h"
-
-int ecall_create_wallet(const char* master_password) {
-
-	//
-	// OVERVIEW: 
-	//	1. check password policy
-	//	2. [ocall] abort if wallet already exist
-	//	3. create wallet 
-	//	4. seal wallet
-	//	5. [ocall] save wallet
-	//	6. exit enclave
-	//
-	//
-	sgx_status_t ocall_status, sealing_status;
-	int ocall_ret;
-
-
-	// 1. check passaword policy
-	if (strlen(master_password) < 8 || strlen(master_password)+1 > MAX_ITEM_SIZE) {
-		return ERR_PASSWORD_OUT_OF_RANGE;
-	}
-
-
-	// 2. abort if wallet already exist
-	ocall_status = ocall_is_wallet(&ocall_ret);
-	if (ocall_ret != 0) {
-		return ERR_WALLET_ALREADY_EXISTS;
-	}
-
-
-	// 3. create new wallet
-	wallet_t* wallet = (wallet_t*)malloc(sizeof(wallet_t));
-	wallet->size = 0;
-	strncpy(wallet->master_password, master_password, strlen(master_password)+1); 
-
-
-	// 4. seal wallet
-	size_t sealed_size = sizeof(sgx_sealed_data_t) + sizeof(wallet_t);
-	uint8_t* sealed_data = (uint8_t*)malloc(sealed_size);
-    sealing_status = seal_wallet(wallet, (sgx_sealed_data_t*)sealed_data, sealed_size);
-    free(wallet);
-    if (sealing_status != SGX_SUCCESS) {
-		free(sealed_data);
-		return ERR_FAIL_SEAL;
-    }
-    
-
-	// 5. save wallet
-	ocall_status = ocall_save_wallet(&ocall_ret, sealed_data, sealed_size); 
-	free(sealed_data);
-	if (ocall_ret != 0 || ocall_status != SGX_SUCCESS) {
-		return ERR_CANNOT_SAVE_WALLET;
-	}
-
-
-	// 6. exit enclave
-	return RET_SUCCESS;
-}
-
-
-/**
- * @brief      Provides the wallet content. The sizes/length of 
- *             pointers need to be specified, otherwise SGX will
- *             assume a count of 1 for all pointers.
- *
- */
-int ecall_show_wallet(const char* master_password, wallet_t* wallet, size_t wallet_size) {
-
-	//
-	// OVERVIEW: 
-	//	1. [ocall] load wallet
-	// 	2. unseal wallet
-	//	3. verify master-password
-	//	4. return wallet to app
-	//	5. exit enclave
-	//
-	//
-	sgx_status_t ocall_status, sealing_status;
-	int ocall_ret;
-
-
-
-	// 1. load wallet
-	size_t sealed_size = sizeof(sgx_sealed_data_t) + sizeof(wallet_t);
-	uint8_t* sealed_data = (uint8_t*)malloc(sealed_size);
-	ocall_status = ocall_load_wallet(&ocall_ret, sealed_data, sealed_size);
-	if (ocall_ret != 0 || ocall_status != SGX_SUCCESS) {
-		free(sealed_data);
-		return ERR_CANNOT_LOAD_WALLET;
-	}
-
-
-	// 2. unseal loaded wallet
-	uint32_t plaintext_size = sizeof(wallet_t);
-    wallet_t* unsealed_wallet = (wallet_t*)malloc(plaintext_size);
-    sealing_status = unseal_wallet((sgx_sealed_data_t*)sealed_data, unsealed_wallet, plaintext_size);
-    free(sealed_data);
-    if (sealing_status != SGX_SUCCESS) {
-		free(unsealed_wallet);
-		return ERR_FAIL_UNSEAL;
-    }
-    
-    
-	// 3. verify master-password
-	if (strcmp(unsealed_wallet->master_password, master_password) != 0) {
-		free(unsealed_wallet);
-		return ERR_WRONG_MASTER_PASSWORD;
-	}
-
-
-	// 4. return wallet to app
-	(* wallet) = *unsealed_wallet;
-	free(unsealed_wallet);
-
-
-	// 5. exit enclave
-	return RET_SUCCESS;
-}
-
-
-/**
- * @brief      Changes the wallet's master-password.
- *
- */
-int ecall_change_master_password(const char* old_password, const char* new_password) {
-
-	//
-	// OVERVIEW: 
-	//	1. check password policy
-	//	2. [ocall] load wallet
-	// 	3. unseal wallet
-	//	4. verify old password
-	//	5. update password
-	//	6. seal wallet
-	// 	7. [ocall] save sealed wallet
-	//	8. exit enclave
-	//
-	//
-	sgx_status_t ocall_status, sealing_status;
-	int ocall_ret;
-
-
-
-	// 1. check passaword policy
-	if (strlen(new_password) < 8 || strlen(new_password)+1 > MAX_ITEM_SIZE) {
-		return ERR_PASSWORD_OUT_OF_RANGE;
-	}
-
-
-	// 2. load wallet
-	size_t sealed_size = sizeof(sgx_sealed_data_t) + sizeof(wallet_t);
-	uint8_t* sealed_data = (uint8_t*)malloc(sealed_size);
-	ocall_status = ocall_load_wallet(&ocall_ret, sealed_data, sealed_size);
-	if (ocall_ret != 0 || ocall_status != SGX_SUCCESS) {
-		free(sealed_data);
-		return ERR_CANNOT_LOAD_WALLET;
-	}
-
-
-	// 3. unseal wallet
-	uint32_t plaintext_size = sizeof(wallet_t);
-    wallet_t* wallet = (wallet_t*)malloc(plaintext_size);
-    sealing_status = unseal_wallet((sgx_sealed_data_t*)sealed_data, wallet, plaintext_size);
-    free(sealed_data);
-    if (sealing_status != SGX_SUCCESS) {
-    	free(wallet);
-		return ERR_FAIL_UNSEAL;
-    }
-
-
-	// 4. verify master-password
-	if (strcmp(wallet->master_password, old_password) != 0) {
-		free(wallet);
-		return ERR_WRONG_MASTER_PASSWORD;
-	}
-
-
-	// 5. update password
-	strncpy(wallet->master_password, new_password, strlen(new_password)+1); 
-
-
-	// 6. seal wallet
-	sealed_data = (uint8_t*)malloc(sealed_size);
-    sealing_status = seal_wallet(wallet, (sgx_sealed_data_t*)sealed_data, sealed_size);
-    free(wallet);
-    if (sealing_status != SGX_SUCCESS) {
-    	free(wallet);
-		free(sealed_data);
-		return ERR_FAIL_SEAL;
-    }
-
-
-	// 7. save wallet
-	ocall_status = ocall_save_wallet(&ocall_ret, sealed_data, sealed_size); 
-	free(sealed_data); 
-	if (ocall_ret != 0 || ocall_status != SGX_SUCCESS) {
-		return ERR_CANNOT_SAVE_WALLET;
-	}
-
-
-	// 6. exit enclave
-	return RET_SUCCESS;
-}
-
-
-/**
- * @brief      Adds an item to the wallet. The sizes/length of 
- *             pointers need to be specified, otherwise SGX will
- *             assume a count of 1 for all pointers.
- *
- */
-int ecall_add_item(const char* master_password, const item_t* item, const size_t item_size) {
-
-	//
-	// OVERVIEW: 
-	//	1. [ocall] load wallet
-	//	2. unseal wallet
-	//	3. verify master-password
-	//	4. check input length
-	//	5. add item to the wallet
-	//	6. seal wallet
-	//	7. [ocall] save sealed wallet
-	//	8. exit enclave
-	//
-	//
-	sgx_status_t ocall_status, sealing_status;
-	int ocall_ret;
-
-
-
-	// 2. load wallet
-	size_t sealed_size = sizeof(sgx_sealed_data_t) + sizeof(wallet_t);
-	uint8_t* sealed_data = (uint8_t*)malloc(sealed_size);
-	ocall_status = ocall_load_wallet(&ocall_ret, sealed_data, sealed_size);
-	if (ocall_ret != 0 || ocall_status != SGX_SUCCESS) {
-		free(sealed_data);
-		return ERR_CANNOT_LOAD_WALLET;
-	}
-
-
-	// 3. unseal wallet
-	uint32_t plaintext_size = sizeof(wallet_t);
-    wallet_t* wallet = (wallet_t*)malloc(plaintext_size);
-    sealing_status = unseal_wallet((sgx_sealed_data_t*)sealed_data, wallet, plaintext_size);
-    free(sealed_data);
-    if (sealing_status != SGX_SUCCESS) {
-    	free(wallet);
-		return ERR_FAIL_UNSEAL;
-    }
-
-
-	// 3. verify master-password
-	if (strcmp(wallet->master_password, master_password) != 0) {
-		free(wallet);
-		return ERR_WRONG_MASTER_PASSWORD;
-	}
-
-
-	// 4. check input length
-	if (strlen(item->title)+1 > MAX_ITEM_SIZE ||
-		strlen(item->username)+1 > MAX_ITEM_SIZE ||
-		strlen(item->password)+1 > MAX_ITEM_SIZE
-	) {
-		free(wallet);
-		return ERR_ITEM_TOO_LONG; 
-    }
-
-
-	// 5. add item to the wallet
-	size_t wallet_size = wallet->size;
-	if (wallet_size >= MAX_ITEMS) {
-		free(wallet);
-		return ERR_WALLET_FULL;
-	}
-	wallet->items[wallet_size] = *item;
-	++wallet->size;
-
-
-	// 6. seal wallet
-	sealed_data = (uint8_t*)malloc(sealed_size);
-    sealing_status = seal_wallet(wallet, (sgx_sealed_data_t*)sealed_data, sealed_size);
-    free(wallet);
-    if (sealing_status != SGX_SUCCESS) {
-    	free(wallet);
-		free(sealed_data);
-		return ERR_FAIL_SEAL;
-    }
-
-
-	// 7. save wallet
-	ocall_status = ocall_save_wallet(&ocall_ret, sealed_data, sealed_size);  
-	free(sealed_data);
-	if (ocall_ret != 0 || ocall_status != SGX_SUCCESS) {
-		return ERR_CANNOT_SAVE_WALLET;
-	}
-
-
-	// 8. exit enclave
-	return RET_SUCCESS;
-}
-
-
-/**
- * @brief      Removes an item from the wallet. The sizes/length of 
- *             pointers need to be specified, otherwise SGX will
- *             assume a count of 1 for all pointers.
- *
- */
-int ecall_remove_item(const char* master_password, const int index) {
-
-	//
-	// OVERVIEW: 
-	//	1. check index bounds
-	//	2. [ocall] load wallet
-	//	3. unseal wallet
-	//	4. verify master-password
-	//	5. remove item from the wallet
-	//	6. seal wallet
-	//	7. [ocall] save sealed wallet
-	//	8. exit enclave
-	//
-	//
-	sgx_status_t ocall_status, sealing_status;
-	int ocall_ret;
-
-
-
-	// 1. check index bounds
-	if (index < 0 || index >= MAX_ITEMS) {
-		return ERR_ITEM_DOES_NOT_EXIST;
-	}
-
-
-	// 2. load wallet
-	size_t sealed_size = sizeof(sgx_sealed_data_t) + sizeof(wallet_t);
-	uint8_t* sealed_data = (uint8_t*)malloc(sealed_size);
-	ocall_status = ocall_load_wallet(&ocall_ret, sealed_data, sealed_size);
-	if (ocall_ret != 0 || ocall_status != SGX_SUCCESS) {
-		free(sealed_data);
-		return ERR_CANNOT_LOAD_WALLET;
-	}
-
-
-	// 3. unseal wallet
-	uint32_t plaintext_size = sizeof(wallet_t);
-    wallet_t* wallet = (wallet_t*)malloc(plaintext_size);
-    sealing_status = unseal_wallet((sgx_sealed_data_t*)sealed_data, wallet, plaintext_size);
-    free(sealed_data);
-    if (sealing_status != SGX_SUCCESS) {
-    	free(wallet);
-		return ERR_FAIL_UNSEAL;
-    }
-
-
-	// 4. verify master-password
-	if (strcmp(wallet->master_password, master_password) != 0) {
-		free(wallet);
-		return ERR_WRONG_MASTER_PASSWORD;
-	}
-
-
-	// 5. remove item from the wallet
-	size_t wallet_size = wallet->size;
-	if (index >= wallet_size) {
-		free(wallet);
-		return ERR_ITEM_DOES_NOT_EXIST;
-	}
-	for (int i = index; i < wallet_size-1; ++i) {
-		wallet->items[i] = wallet->items[i+1];
-	}
-	--wallet->size;
-
-
-	// 6. seal wallet
-	sealed_data = (uint8_t*)malloc(sealed_size);
-    sealing_status = seal_wallet(wallet, (sgx_sealed_data_t*)sealed_data, sealed_size);
-    free(wallet);
-    if (sealing_status != SGX_SUCCESS) {
-		free(sealed_data);
-		return ERR_FAIL_SEAL;
-    }
-
-
-	// 7. save wallet
-	ocall_status = ocall_save_wallet(&ocall_ret, sealed_data, sealed_size);  
-	free(sealed_data);
-	if (ocall_ret != 0 || ocall_status != SGX_SUCCESS) {
-		return ERR_CANNOT_SAVE_WALLET;
-	}
-
-
-	// 8. exit enclave
-	return RET_SUCCESS;
-}
-

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/enclave/enclave.edl

@@ -1,53 +0,0 @@
-enclave {
-
-    // includes
-    include "wallet.h"
-
-
-    // define ECALLs
-    trusted {
-
-        public int ecall_create_wallet(
-            [in, string]const char* master_password
-        );
-
-        public int ecall_show_wallet(
-            [in, string]const char* master_password, 
-            [out, size=wallet_size] wallet_t* wallet,
-            size_t wallet_size
-        );
-
-        public int ecall_change_master_password(
-            [in, string]const char* old_password, 
-            [in, string]const char* new_password
-        );
-
-        public int ecall_add_item(
-            [in, string]const char* master_password, 
-            [in, size=item_size]const item_t* item,
-            size_t item_size
-        );
-
-        public int ecall_remove_item(
-            [in, string]const char* master_password, 
-            int index
-        );
-    };
-
-
-    // define OCALLs
-    untrusted {
-    
-        int ocall_save_wallet(
-            [in, size=sealed_size]const uint8_t* sealed_data, 
-            size_t sealed_size
-        );
-
-        int ocall_load_wallet(
-            [out, size=sealed_size]uint8_t* sealed_data, 
-            size_t sealed_size
-        );
-
-        int ocall_is_wallet(void);
-    };
-};

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/enclave/sealing/sealing.cpp

@@ -1,15 +0,0 @@
-#include "enclave_t.h"
-#include "sgx_trts.h"
-#include "sgx_tseal.h"
-
-#include "wallet.h"
-#include "sealing.h"
-
-sgx_status_t seal_wallet(const wallet_t* wallet, sgx_sealed_data_t* sealed_data, size_t sealed_size) {
-    return sgx_seal_data(0, NULL, sizeof(wallet_t), (uint8_t*)wallet, sealed_size, sealed_data);
-}
-
-sgx_status_t unseal_wallet(const sgx_sealed_data_t* sealed_data, wallet_t* plaintext, uint32_t plaintext_size) {
-    return sgx_unseal_data(sealed_data, NULL, NULL, (uint8_t*)plaintext, &plaintext_size);
-}
-

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/enclave/sealing/sealing.h

@@ -1,16 +0,0 @@
-#ifndef SEALING_H_
-#define SEALING_H_
-
-#include "sgx_trts.h"
-#include "sgx_tseal.h"
-
-#include "wallet.h"
-
-sgx_status_t seal_wallet(const wallet_t* plaintext, sgx_sealed_data_t* sealed_data, size_t sealed_size);
-
-sgx_status_t unseal_wallet(const sgx_sealed_data_t* sealed_data, wallet_t* plaintext, uint32_t plaintext_size);
-
-
-#endif // SEALING_H_
-
-

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/include/enclave.h

@@ -1,21 +0,0 @@
-#ifndef ENCLAVE_H_
-#define ENCLAVE_H_
-
-
-/***************************************************
- * Enclave return codes
- ***************************************************/
-#define RET_SUCCESS 0
-#define ERR_PASSWORD_OUT_OF_RANGE 1
-#define ERR_WALLET_ALREADY_EXISTS 2
-#define ERR_CANNOT_SAVE_WALLET 3
-#define ERR_CANNOT_LOAD_WALLET 4
-#define ERR_WRONG_MASTER_PASSWORD 5
-#define ERR_WALLET_FULL 6
-#define ERR_ITEM_DOES_NOT_EXIST 7
-#define ERR_ITEM_TOO_LONG 8
-#define ERR_FAIL_SEAL 9
-#define ERR_FAIL_UNSEAL 10
-
-
-#endif // ENCLAVE_H_

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/include/wallet.h

@@ -1,25 +0,0 @@
-#ifndef WALLET_H_
-#define WALLET_H_
-
-#define MAX_ITEMS 100
-#define MAX_ITEM_SIZE 100
-
-// item
-struct Item {
-	char  title[MAX_ITEM_SIZE];
-	char  username[MAX_ITEM_SIZE];
-	char  password[MAX_ITEM_SIZE];
-};
-typedef struct Item item_t;
-
-// wallet
-struct Wallet {
-	item_t items[MAX_ITEMS];
-	size_t size;
-	char master_password[MAX_ITEM_SIZE];
-};
-typedef struct Wallet wallet_t;
-
-
-
-#endif // WALLET_H_

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/.cproject

@@ -1,216 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<?fileVersion 4.0.0?><cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
-	<storageModule moduleId="org.eclipse.cdt.core.settings">
-		<cconfiguration id="com.intel.sgx.configuration.Sim.Debug">
-			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.intel.sgx.configuration.Sim.Debug" moduleId="org.eclipse.cdt.core.settings" name="Intel(R) SGX Simulation Debug">
-				<externalSettings/>
-				<extensions>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.MakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.autotools.core.ErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-				</extensions>
-			</storageModule>
-			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-				<configuration artifactName="${ProjName}" buildProperties="" description="" id="com.intel.sgx.configuration.Sim.Debug" name="Intel(R) SGX Simulation Debug" parent="com.intel.sgx.configuration.Sim.Debug">
-					<folderInfo id="com.intel.sgx.configuration.Sim.Debug.935873960" name="/" resourcePath="">
-						<toolChain id="com.intel.sgx.toolChain.Sim.Debug.2132595457" name="Intel(R) SGX" superClass="com.intel.sgx.toolChain.Sim.Debug">
-							<targetPlatform binaryParser="org.eclipse.cdt.core.ELF" id="com.intel.sgx.targetEnclave.1678491512" isAbstract="false" superClass="com.intel.sgx.targetEnclave"/>
-							<builder arguments="SGX_DEBUG=1 SGX_MODE=SIM -f Makefile" command="make" id="com.intel.sgx.builder2.229166714" keepEnvironmentInBuildfile="false" name="Intel(R) Software Guard Extensions Linux Builder" superClass="com.intel.sgx.builder2"/>
-							<tool id="com.intel.sgx.compiler.81269967" name="Intel(R) SGX" superClass="com.intel.sgx.compiler">
-								<option id="com.intel.sgx.option.includePath.1694375039" superClass="com.intel.sgx.option.includePath" valueType="includePath">
-									<listOptionValue builtIn="false" value="&quot;${SGX_SDK}/include&quot;"/>
-								</option>
-								<inputType id="com.intel.sgx.inputType.742388855" superClass="com.intel.sgx.inputType"/>
-							</tool>
-						</toolChain>
-					</folderInfo>
-				</configuration>
-			</storageModule>
-			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-		</cconfiguration>
-		<cconfiguration id="com.intel.sgx.configuration.Sim.Release">
-			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.intel.sgx.configuration.Sim.Release" moduleId="org.eclipse.cdt.core.settings" name="Intel(R) SGX Simulation">
-				<externalSettings/>
-				<extensions>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.MakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.autotools.core.ErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-				</extensions>
-			</storageModule>
-			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-				<configuration artifactName="${ProjName}" buildProperties="" description="" id="com.intel.sgx.configuration.Sim.Release" name="Intel(R) SGX Simulation" parent="com.intel.sgx.configuration.Sim.Release">
-					<folderInfo id="com.intel.sgx.configuration.Sim.Release.428839196" name="/" resourcePath="">
-						<toolChain id="com.intel.sgx.toolChain.Sim.Release.709775329" name="Intel(R) SGX" superClass="com.intel.sgx.toolChain.Sim.Release">
-							<targetPlatform binaryParser="org.eclipse.cdt.core.ELF" id="com.intel.sgx.targetEnclave.1866379479" isAbstract="false" superClass="com.intel.sgx.targetEnclave"/>
-							<builder arguments="SGX_DEBUG=0 SGX_MODE=SIM -f Makefile" command="make" id="com.intel.sgx.builder3.1000705250" keepEnvironmentInBuildfile="false" name="Intel(R) Software Guard Extensions Linux Builder" superClass="com.intel.sgx.builder3"/>
-							<tool id="com.intel.sgx.compiler.301453474" name="Intel(R) SGX" superClass="com.intel.sgx.compiler">
-								<option id="com.intel.sgx.option.includePath.1312096753" superClass="com.intel.sgx.option.includePath" valueType="includePath">
-									<listOptionValue builtIn="false" value="&quot;${SGX_SDK}/include&quot;"/>
-								</option>
-								<inputType id="com.intel.sgx.inputType.596141238" superClass="com.intel.sgx.inputType"/>
-							</tool>
-						</toolChain>
-					</folderInfo>
-				</configuration>
-			</storageModule>
-			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-		</cconfiguration>
-		<cconfiguration id="com.intel.sgx.configuration.HW.Debug">
-			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.intel.sgx.configuration.HW.Debug" moduleId="org.eclipse.cdt.core.settings" name="Intel(R) SGX Hardware Debug">
-				<externalSettings/>
-				<extensions>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.MakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.autotools.core.ErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-				</extensions>
-			</storageModule>
-			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-				<configuration artifactName="${ProjName}" buildProperties="" description="" id="com.intel.sgx.configuration.HW.Debug" name="Intel(R) SGX Hardware Debug" parent="com.intel.sgx.configuration.HW.Debug">
-					<folderInfo id="com.intel.sgx.configuration.HW.Debug.562917509" name="/" resourcePath="">
-						<toolChain id="com.intel.sgx.toolChain.HW.Debug.2046051538" name="Intel(R) SGX" superClass="com.intel.sgx.toolChain.HW.Debug">
-							<targetPlatform binaryParser="org.eclipse.cdt.core.ELF" id="com.intel.sgx.targetEnclave.999277922" isAbstract="false" superClass="com.intel.sgx.targetEnclave"/>
-							<builder arguments="SGX_DEBUG=1 SGX_MODE=HW -f Makefile" command="make" id="com.intel.sgx.builder1.577701014" keepEnvironmentInBuildfile="false" name="Intel(R) Software Guard Extensions Linux Builder" superClass="com.intel.sgx.builder1"/>
-							<tool id="com.intel.sgx.compiler.1898704176" name="Intel(R) SGX" superClass="com.intel.sgx.compiler">
-								<option id="com.intel.sgx.option.includePath.1026657138" superClass="com.intel.sgx.option.includePath" valueType="includePath">
-									<listOptionValue builtIn="false" value="&quot;${SGX_SDK}/include&quot;"/>
-								</option>
-								<inputType id="com.intel.sgx.inputType.393162412" superClass="com.intel.sgx.inputType"/>
-							</tool>
-						</toolChain>
-					</folderInfo>
-				</configuration>
-			</storageModule>
-			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-		</cconfiguration>
-		<cconfiguration id="com.intel.sgx.configuration.HW.Prerelease">
-			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.intel.sgx.configuration.HW.Prerelease" moduleId="org.eclipse.cdt.core.settings" name="Intel(R) SGX Hardware Prerelease">
-				<externalSettings/>
-				<extensions>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.MakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.autotools.core.ErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-				</extensions>
-			</storageModule>
-			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-				<configuration artifactName="${ProjName}" buildProperties="" description="" id="com.intel.sgx.configuration.HW.Prerelease" name="Intel(R) SGX Hardware Prerelease" parent="com.intel.sgx.configuration.HW.Prerelease">
-					<folderInfo id="com.intel.sgx.configuration.HW.Prerelease.2074448686" name="/" resourcePath="">
-						<toolChain id="com.intel.sgx.toolChain.HW.Prerelease.2016152654" name="Intel(R) SGX" superClass="com.intel.sgx.toolChain.HW.Prerelease">
-							<targetPlatform binaryParser="org.eclipse.cdt.core.ELF" id="com.intel.sgx.targetEnclave.1520324017" isAbstract="false" superClass="com.intel.sgx.targetEnclave"/>
-							<builder arguments="SGX_PRERELEASE=1 SGX_MODE=HW -f Makefile" command="make" id="com.intel.sgx.builder5.293910513" keepEnvironmentInBuildfile="false" name="Intel(R) Software Guard Extensions Linux Builder" superClass="com.intel.sgx.builder5"/>
-							<tool id="com.intel.sgx.compiler.845441552" name="Intel(R) SGX" superClass="com.intel.sgx.compiler">
-								<option id="com.intel.sgx.option.includePath.199398937" superClass="com.intel.sgx.option.includePath" valueType="includePath">
-									<listOptionValue builtIn="false" value="&quot;${SGX_SDK}/include&quot;"/>
-								</option>
-								<inputType id="com.intel.sgx.inputType.1555926498" superClass="com.intel.sgx.inputType"/>
-							</tool>
-						</toolChain>
-					</folderInfo>
-				</configuration>
-			</storageModule>
-			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-		</cconfiguration>
-		<cconfiguration id="com.intel.sgx.configuration.HW.Release">
-			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.intel.sgx.configuration.HW.Release" moduleId="org.eclipse.cdt.core.settings" name="Intel(R) SGX Hardware Release">
-				<externalSettings/>
-				<extensions>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.MakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.autotools.core.ErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-				</extensions>
-			</storageModule>
-			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-				<configuration artifactName="${ProjName}" buildProperties="" description="" id="com.intel.sgx.configuration.HW.Release" name="Intel(R) SGX Hardware Release" parent="com.intel.sgx.configuration.HW.Release">
-					<folderInfo id="com.intel.sgx.configuration.HW.Release.1347223665" name="/" resourcePath="">
-						<toolChain id="com.intel.sgx.toolChain.HW.Release.1050674831" name="Intel(R) SGX" superClass="com.intel.sgx.toolChain.HW.Release">
-							<targetPlatform binaryParser="org.eclipse.cdt.core.ELF" id="com.intel.sgx.targetEnclave.987781695" isAbstract="false" superClass="com.intel.sgx.targetEnclave"/>
-							<builder arguments="SGX_DEBUG=0 SGX_MODE=HW -f Makefile" command="make" id="com.intel.sgx.builder6.484951388" keepEnvironmentInBuildfile="false" name="Intel(R) Software Guard Extensions Linux Builder" superClass="com.intel.sgx.builder6"/>
-							<tool id="com.intel.sgx.compiler.945246695" name="Intel(R) SGX" superClass="com.intel.sgx.compiler">
-								<option id="com.intel.sgx.option.includePath.119487102" superClass="com.intel.sgx.option.includePath" valueType="includePath">
-									<listOptionValue builtIn="false" value="&quot;${SGX_SDK}/include&quot;"/>
-								</option>
-								<inputType id="com.intel.sgx.inputType.593431891" superClass="com.intel.sgx.inputType"/>
-							</tool>
-						</toolChain>
-					</folderInfo>
-				</configuration>
-			</storageModule>
-			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-		</cconfiguration>
-	</storageModule>
-	<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-		<project id="LocalAttestation.cdt.managedbuild.target.gnu.exe.872917958" name="Executable" projectType="cdt.managedbuild.target.gnu.exe"/>
-	</storageModule>
-	<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
-	<storageModule moduleId="refreshScope" versionNumber="2">
-		<configuration configurationName="Intel(R) SGX Hardware Debug">
-			<resource resourceType="PROJECT" workspacePath="/LocalAttestation"/>
-		</configuration>
-		<configuration configurationName="Intel(R) SGX Simulation Debug">
-			<resource resourceType="PROJECT" workspacePath="/LocalAttestation"/>
-		</configuration>
-		<configuration configurationName="Intel(R) SGX Hardware Prerelease">
-			<resource resourceType="PROJECT" workspacePath="/LocalAttestation"/>
-		</configuration>
-		<configuration configurationName="Intel(R) SGX Simulation">
-			<resource resourceType="PROJECT" workspacePath="/LocalAttestation"/>
-		</configuration>
-		<configuration configurationName="Intel(R) SGX Hardware Release">
-			<resource resourceType="PROJECT" workspacePath="/LocalAttestation"/>
-		</configuration>
-	</storageModule>
-	<storageModule moduleId="scannerConfiguration">
-		<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
-		<scannerConfigBuildInfo instanceId="com.intel.sgx.configuration.HW.Release;com.intel.sgx.configuration.HW.Release.1347223665;com.intel.sgx.compiler.945246695;com.intel.sgx.inputType.593431891">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="com.intel.sgx.SGXPerProjectProfile"/>
-		</scannerConfigBuildInfo>
-		<scannerConfigBuildInfo instanceId="com.intel.sgx.configuration.Sim.Debug;com.intel.sgx.configuration.Sim.Debug.935873960;com.intel.sgx.compiler.81269967;com.intel.sgx.inputType.742388855">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="com.intel.sgx.SGXPerProjectProfile"/>
-		</scannerConfigBuildInfo>
-		<scannerConfigBuildInfo instanceId="com.intel.sgx.configuration.Sim.Release;com.intel.sgx.configuration.Sim.Release.428839196;com.intel.sgx.compiler.301453474;com.intel.sgx.inputType.596141238">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="com.intel.sgx.SGXPerProjectProfile"/>
-		</scannerConfigBuildInfo>
-		<scannerConfigBuildInfo instanceId="cdt.managedbuild.config.gnu.exe.debug.1609650460;cdt.managedbuild.config.gnu.exe.debug.1609650460.;cdt.managedbuild.tool.gnu.c.compiler.exe.debug.1644119147;cdt.managedbuild.tool.gnu.c.compiler.input.938348551">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
-		</scannerConfigBuildInfo>
-		<scannerConfigBuildInfo instanceId="cdt.managedbuild.config.gnu.exe.release.1394873887;cdt.managedbuild.config.gnu.exe.release.1394873887.;cdt.managedbuild.tool.gnu.c.compiler.exe.release.2035356548;cdt.managedbuild.tool.gnu.c.compiler.input.793813290">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
-		</scannerConfigBuildInfo>
-		<scannerConfigBuildInfo instanceId="com.intel.sgx.configuration.HW.Debug;com.intel.sgx.configuration.HW.Debug.562917509;com.intel.sgx.compiler.1898704176;com.intel.sgx.inputType.393162412">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="com.intel.sgx.SGXPerProjectProfile"/>
-		</scannerConfigBuildInfo>
-		<scannerConfigBuildInfo instanceId="com.intel.sgx.configuration.HW.Prerelease;com.intel.sgx.configuration.HW.Prerelease.2074448686;com.intel.sgx.compiler.845441552;com.intel.sgx.inputType.1555926498">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="com.intel.sgx.SGXPerProjectProfile"/>
-		</scannerConfigBuildInfo>
-	</storageModule>
-	<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
-</cproject>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/.project

@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>LocalAttestation</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
-			<triggers>clean,full,incremental,</triggers>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
-			<triggers>full,incremental,</triggers>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.cdt.core.cnature</nature>
-		<nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
-		<nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
-		<nature>org.eclipse.cdt.core.ccnature</nature>
-		<nature>com.intel.sgx.sgxnature</nature>
-	</natures>
-</projectDescription>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/.settings/language.settings.xml

@@ -1,73 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<project>
-	<configuration id="com.intel.sgx.configuration.Sim.Debug" name="Intel(R) SGX Simulation Debug">
-		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
-			<provider class="org.eclipse.cdt.core.language.settings.providers.LanguageSettingsGenericProvider" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider" name="CDT User Setting Entries" prefer-non-shared="true" store-entries-with-project="true">
-				<resource project-relative-path="">
-					<entry kind="includePath" name="${SGX_SDK}/include">
-						<flag value="LOCAL"/>
-					</entry>
-				</resource>
-			</provider>
-			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.GCCBuiltinSpecsDetector" ref="shared-provider"/>
-		</extension>
-	</configuration>
-	<configuration id="com.intel.sgx.configuration.Sim.Release" name="Intel(R) SGX Simulation">
-		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
-			<provider class="org.eclipse.cdt.core.language.settings.providers.LanguageSettingsGenericProvider" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider" name="CDT User Setting Entries" prefer-non-shared="true" store-entries-with-project="true">
-				<resource project-relative-path="">
-					<entry kind="includePath" name="${SGX_SDK}/include">
-						<flag value="LOCAL"/>
-					</entry>
-				</resource>
-			</provider>
-			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.GCCBuiltinSpecsDetector" ref="shared-provider"/>
-		</extension>
-	</configuration>
-	<configuration id="com.intel.sgx.configuration.HW.Debug" name="Intel(R) SGX Hardware Debug">
-		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
-			<provider class="org.eclipse.cdt.core.language.settings.providers.LanguageSettingsGenericProvider" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider" name="CDT User Setting Entries" prefer-non-shared="true" store-entries-with-project="true">
-				<resource project-relative-path="">
-					<entry kind="includePath" name="${SGX_SDK}/include">
-						<flag value="LOCAL"/>
-					</entry>
-				</resource>
-			</provider>
-			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.GCCBuiltinSpecsDetector" ref="shared-provider"/>
-		</extension>
-	</configuration>
-	<configuration id="com.intel.sgx.configuration.HW.Prerelease" name="Intel(R) SGX Hardware Prerelease">
-		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
-			<provider class="org.eclipse.cdt.core.language.settings.providers.LanguageSettingsGenericProvider" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider" name="CDT User Setting Entries" prefer-non-shared="true" store-entries-with-project="true">
-				<resource project-relative-path="">
-					<entry kind="includePath" name="${SGX_SDK}/include">
-						<flag value="LOCAL"/>
-					</entry>
-				</resource>
-			</provider>
-			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.GCCBuiltinSpecsDetector" ref="shared-provider"/>
-		</extension>
-	</configuration>
-	<configuration id="com.intel.sgx.configuration.HW.Release" name="Intel(R) SGX Hardware Release">
-		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
-			<provider class="org.eclipse.cdt.core.language.settings.providers.LanguageSettingsGenericProvider" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider" name="CDT User Setting Entries" prefer-non-shared="true" store-entries-with-project="true">
-				<resource project-relative-path="">
-					<entry kind="includePath" name="${SGX_SDK}/include">
-						<flag value="LOCAL"/>
-					</entry>
-				</resource>
-			</provider>
-			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.GCCBuiltinSpecsDetector" ref="shared-provider"/>
-		</extension>
-	</configuration>
-</project>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/App/App.cpp

@@ -1,150 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-// App.cpp : Defines the entry point for the console application.
-#include <stdio.h>
-#include <map>
-#include "../Enclave1/Enclave1_u.h"
-#include "../Enclave2/Enclave2_u.h"
-#include "../Enclave3/Enclave3_u.h"
-#include "sgx_eid.h"
-#include "sgx_urts.h"
-#define __STDC_FORMAT_MACROS
-#include <inttypes.h>
-
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#include <unistd.h>
-
-#define UNUSED(val) (void)(val)
-#define TCHAR   char
-#define _TCHAR  char
-#define _T(str) str
-#define scanf_s scanf
-#define _tmain  main
-
-extern std::map<sgx_enclave_id_t, uint32_t>g_enclave_id_map;
-
-
-sgx_enclave_id_t e1_enclave_id = 0;
-sgx_enclave_id_t e2_enclave_id = 0;
-sgx_enclave_id_t e3_enclave_id = 0;
-
-#define ENCLAVE1_PATH "libenclave1.so"
-#define ENCLAVE2_PATH "libenclave2.so"
-#define ENCLAVE3_PATH "libenclave3.so"
-
-void waitForKeyPress()
-{
-    char ch;
-    int temp;
-    printf("\n\nHit a key....\n");
-    temp = scanf_s("%c", &ch);
-}
-
-uint32_t load_enclaves()
-{
-    uint32_t enclave_temp_no;
-    int ret, launch_token_updated;
-    sgx_launch_token_t launch_token;
-
-    enclave_temp_no = 0;
-
-    ret = sgx_create_enclave(ENCLAVE1_PATH, SGX_DEBUG_FLAG, &launch_token, &launch_token_updated, &e1_enclave_id, NULL);
-    if (ret != SGX_SUCCESS) {
-                return ret;
-    }
-
-    enclave_temp_no++;
-    g_enclave_id_map.insert(std::pair<sgx_enclave_id_t, uint32_t>(e1_enclave_id, enclave_temp_no));
-
-    return SGX_SUCCESS;
-}
-
-int _tmain(int argc, _TCHAR* argv[])
-{
-    uint32_t ret_status;
-    sgx_status_t status;
-
-    UNUSED(argc);
-    UNUSED(argv);
-
-    if(load_enclaves() != SGX_SUCCESS)
-    {
-        printf("\nLoad Enclave Failure");
-    }
-
-    //printf("\nAvailable Enclaves");
-    //printf("\nEnclave1 - EnclaveID %" PRIx64 "\n", e1_enclave_id);
-
-    // shared memory
-    key_t key = ftok("../..", 1);
-    int shmid = shmget(key, 1024, 0666|IPC_CREAT);
-    char *str = (char*)shmat(shmid, (void*)0, 0);
-    printf("[TEST IPC] Sending to Enclave2: Hello from Enclave1\n");
-    strncpy(str, "Hello from Enclave1\n", 20);
-    shmdt(str);
-
-    do
-    {
-        printf("[START] Testing create session between Enclave1 (Initiator) and Enclave2 (Responder)\n");
-        status = Enclave1_test_create_session(e1_enclave_id, &ret_status, e1_enclave_id, 0);
-        status = SGX_SUCCESS;
-        if (status!=SGX_SUCCESS)
-        {
-            printf("[END] test_create_session Ecall failed: Error code is %x\n", status);
-            break;
-        }
-        else
-        {
-            if(ret_status==0)
-            {
-                printf("[END] Secure Channel Establishment between Initiator (E1) and Responder (E2) Enclaves successful !!!\n");
-            }
-            else
-            {
-                printf("[END] Session establishment and key exchange failure between Initiator (E1) and Responder (E2): Error code is %x\n", ret_status);
-                break;
-            }
-        }
-
-#pragma warning (push)
-#pragma warning (disable : 4127)
-    }while(0);
-#pragma warning (pop)
-
-    sgx_destroy_enclave(e1_enclave_id);
-
-    waitForKeyPress();
-
-    return 0;
-}

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Enclave1.config.xml

@@ -1,12 +0,0 @@
-<EnclaveConfiguration> 
-  <ProdID>0</ProdID> 
-  <ISVSVN>0</ISVSVN> 
-  <StackMaxSize>0x40000</StackMaxSize> 
-  <HeapMaxSize>0x100000</HeapMaxSize> 
-  <TCSNum>1</TCSNum> 
-  <TCSPolicy>1</TCSPolicy> 
-  <!-- Recommend changing 'DisableDebug' to 1 to make the enclave undebuggable for enclave release -->
-  <DisableDebug>0</DisableDebug> 
-  <MiscSelect>0</MiscSelect>
-  <MiscMask>0xFFFFFFFF</MiscMask>
-</EnclaveConfiguration>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Enclave1.cpp

@@ -1,367 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-// Enclave1.cpp : Defines the exported functions for the .so application
-#include "sgx_eid.h"
-#include "Enclave1_t.h"
-#include "EnclaveMessageExchange.h"
-#include "error_codes.h"
-#include "Utility_E1.h"
-#include "sgx_thread.h"
-#include "sgx_dh.h"
-#include <map>
-
-#define UNUSED(val) (void)(val)
-
-std::map<sgx_enclave_id_t, dh_session_t>g_src_session_info_map;
-
-static uint32_t e1_foo1_wrapper(ms_in_msg_exchange_t *ms, size_t param_lenth, char** resp_buffer, size_t* resp_length);
-
-//Function pointer table containing the list of functions that the enclave exposes
-const struct {
-    size_t num_funcs;
-    const void* table[1];
-} func_table = {
-    1,
-    {
-        (const void*)e1_foo1_wrapper,
-    }
-};
-
-//Makes use of the sample code function to establish a secure channel with the destination enclave (Test Vector)
-uint32_t test_create_session(sgx_enclave_id_t src_enclave_id,
-                         sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    dh_session_t dest_session_info;
-
-    //Core reference code function for creating a session
-    ke_status = create_session(src_enclave_id, dest_enclave_id, &dest_session_info);
-
-    return ke_status;
-}
-
-//Makes use of the sample code function to do an enclave to enclave call (Test Vector)
-uint32_t test_enclave_to_enclave_call(sgx_enclave_id_t src_enclave_id,
-                                          sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    uint32_t var1,var2;
-    uint32_t target_fn_id, msg_type;
-    char* marshalled_inp_buff;
-    size_t marshalled_inp_buff_len;
-    char* out_buff;
-    size_t out_buff_len;
-    dh_session_t *dest_session_info;
-    size_t max_out_buff_size;
-    char* retval;
-
-    var1 = 0x4;
-    var2 = 0x5;
-    target_fn_id = 0;
-    msg_type = ENCLAVE_TO_ENCLAVE_CALL;
-    max_out_buff_size = 50;
-
-    //Marshals the input parameters for calling function foo1 in Enclave2 into a input buffer
-    ke_status = marshal_input_parameters_e2_foo1(target_fn_id, msg_type, var1, var2, &marshalled_inp_buff, &marshalled_inp_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        return ke_status;
-    }
-
-    //Search the map for the session information associated with the destination enclave id of Enclave2 passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-          dest_session_info = &it->second;
-    }
-    else
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        return INVALID_SESSION;
-    }
-
-    //Core Reference Code function
-    ke_status = send_request_receive_response(src_enclave_id, dest_enclave_id, dest_session_info, marshalled_inp_buff,
-                                            marshalled_inp_buff_len, max_out_buff_size, &out_buff, &out_buff_len);
-
-
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    //Un-marshal the return value and output parameters from foo1 of Enclave 2
-    ke_status = unmarshal_retval_and_output_parameters_e2_foo1(out_buff, &retval);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    SAFE_FREE(marshalled_inp_buff);
-    SAFE_FREE(out_buff);
-    SAFE_FREE(retval);
-    return SUCCESS;
-}
-
-//Makes use of the sample code function to do a generic secret message exchange (Test Vector)
-uint32_t test_message_exchange(sgx_enclave_id_t src_enclave_id,
-                               sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    uint32_t target_fn_id, msg_type;
-    char* marshalled_inp_buff;
-    size_t marshalled_inp_buff_len;
-    char* out_buff;
-    size_t out_buff_len;
-    dh_session_t *dest_session_info;
-    size_t max_out_buff_size;
-    char* secret_response;
-    uint32_t secret_data;
-
-    target_fn_id = 0;
-    msg_type = MESSAGE_EXCHANGE;
-    max_out_buff_size = 50;
-    secret_data = 0x12345678; //Secret Data here is shown only for purpose of demonstration.
-
-    //Marshals the secret data into a buffer
-    ke_status = marshal_message_exchange_request(target_fn_id, msg_type, secret_data, &marshalled_inp_buff, &marshalled_inp_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        return ke_status;
-    }
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-         dest_session_info = &it->second;
-    }
-    else
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        return INVALID_SESSION;
-    }
-
-    //Core Reference Code function
-    ke_status = send_request_receive_response(src_enclave_id, dest_enclave_id, dest_session_info, marshalled_inp_buff,
-                                                marshalled_inp_buff_len, max_out_buff_size, &out_buff, &out_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    //Un-marshal the secret response data
-    ke_status = umarshal_message_exchange_response(out_buff, &secret_response);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    SAFE_FREE(marshalled_inp_buff);
-    SAFE_FREE(out_buff);
-    SAFE_FREE(secret_response);
-    return SUCCESS;
-}
-
-
-//Makes use of the sample code function to close a current session
-uint32_t test_close_session(sgx_enclave_id_t src_enclave_id,
-                                sgx_enclave_id_t dest_enclave_id)
-{
-    dh_session_t dest_session_info;
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-        dest_session_info = it->second;
-    }
-    else
-    {
-        return NULL;
-    }
-
-    //Core reference code function for closing a session
-    ke_status = close_session(src_enclave_id, dest_enclave_id);
-
-    //Erase the session information associated with the destination enclave id
-    g_src_session_info_map.erase(dest_enclave_id);
-    return ke_status;
-}
-
-//Function that is used to verify the trust of the other enclave
-//Each enclave can have its own way verifying the peer enclave identity
-extern "C" uint32_t verify_peer_enclave_trust(sgx_dh_session_enclave_identity_t* peer_enclave_identity)
-{
-    if(!peer_enclave_identity)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    if(peer_enclave_identity->isv_prod_id != 0 || !(peer_enclave_identity->attributes.flags & SGX_FLAGS_INITTED))
-        // || peer_enclave_identity->attributes.xfrm !=3)// || peer_enclave_identity->mr_signer != xx //TODO: To be hardcoded with values to check
-    {
-        return ENCLAVE_TRUST_ERROR;
-    }
-    else
-    {
-        return SUCCESS;
-    }
-}
-
-
-//Dispatcher function that calls the approriate enclave function based on the function id
-//Each enclave can have its own way of dispatching the calls from other enclave
-extern "C" uint32_t enclave_to_enclave_call_dispatcher(char* decrypted_data,
-                                                       size_t decrypted_data_length,
-                                                       char** resp_buffer,
-                                                       size_t* resp_length)
-{
-    ms_in_msg_exchange_t *ms;
-    uint32_t (*fn1)(ms_in_msg_exchange_t *ms, size_t, char**, size_t*);
-    if(!decrypted_data || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    ms = (ms_in_msg_exchange_t *)decrypted_data;
-    if(ms->target_fn_id >= func_table.num_funcs)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    fn1 = (uint32_t (*)(ms_in_msg_exchange_t*, size_t, char**, size_t*))func_table.table[ms->target_fn_id];
-    return fn1(ms, decrypted_data_length, resp_buffer, resp_length);
-}
-
-//Operates on the input secret and generates the output secret
-uint32_t get_message_exchange_response(uint32_t inp_secret_data)
-{
-    uint32_t secret_response;
-
-    //User should use more complex encryption method to protect their secret, below is just a simple example
-    secret_response = inp_secret_data & 0x11111111;
-
-    return secret_response;
-
-}
-
-//Generates the response from the request message
-extern "C" uint32_t message_exchange_response_generator(char* decrypted_data,
-                                              char** resp_buffer,
-                                              size_t* resp_length)
-{
-    ms_in_msg_exchange_t *ms;
-    uint32_t inp_secret_data;
-    uint32_t out_secret_data;
-    if(!decrypted_data || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    ms = (ms_in_msg_exchange_t *)decrypted_data;
-
-    if(umarshal_message_exchange_request(&inp_secret_data,ms) != SUCCESS)
-        return ATTESTATION_ERROR;
-
-    out_secret_data = get_message_exchange_response(inp_secret_data);
-
-    if(marshal_message_exchange_response(resp_buffer, resp_length, out_secret_data) != SUCCESS)
-        return MALLOC_ERROR;
-
-    return SUCCESS;
-
-}
-
-
-static uint32_t e1_foo1(external_param_struct_t *p_struct_var)
-{
-    if(!p_struct_var)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    (p_struct_var->var1)++;
-    (p_struct_var->var2)++;
-    (p_struct_var->p_internal_struct->ivar1)++;
-    (p_struct_var->p_internal_struct->ivar2)++;
-
-    return (p_struct_var->var1 + p_struct_var->var2 + p_struct_var->p_internal_struct->ivar1 + p_struct_var->p_internal_struct->ivar2);
-}
-
-//Function which is executed on request from the source enclave
-static uint32_t e1_foo1_wrapper(ms_in_msg_exchange_t *ms,
-                    size_t param_lenth,
-                    char** resp_buffer,
-                    size_t* resp_length)
-{
-    UNUSED(param_lenth);
-
-    uint32_t ret;
-    size_t len_data, len_ptr_data;
-    external_param_struct_t *p_struct_var;
-    internal_param_struct_t internal_struct_var;
-
-    if(!ms || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-
-    p_struct_var = (external_param_struct_t*)malloc(sizeof(external_param_struct_t));
-    if(!p_struct_var)
-        return MALLOC_ERROR;
-
-    p_struct_var->p_internal_struct = &internal_struct_var;
-
-    if(unmarshal_input_parameters_e1_foo1(p_struct_var, ms) != SUCCESS)//can use the stack
-    {
-        SAFE_FREE(p_struct_var);
-        return ATTESTATION_ERROR;
-    }
-
-    ret = e1_foo1(p_struct_var);
-
-    len_data = sizeof(external_param_struct_t) - sizeof(p_struct_var->p_internal_struct);
-    len_ptr_data = sizeof(internal_struct_var);
-
-    if(marshal_retval_and_output_parameters_e1_foo1(resp_buffer, resp_length, ret, p_struct_var, len_data, len_ptr_data) != SUCCESS)
-    {
-        SAFE_FREE(p_struct_var);
-        return MALLOC_ERROR;
-    }
-    SAFE_FREE(p_struct_var);
-    return SUCCESS;
-}
-

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Enclave1.edl

@@ -1,43 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-enclave {
-    include "sgx_eid.h"
-    from "../LocalAttestationCode/LocalAttestationCode.edl" import *;
-    from "sgx_tstdc.edl" import *;
-    trusted{
-            public uint32_t test_create_session(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-            public uint32_t test_enclave_to_enclave_call(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-            public uint32_t test_message_exchange(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-            public uint32_t test_close_session(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-    };
-
-};

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Enclave1.lds

@@ -1,10 +0,0 @@
-Enclave1.so
-{
-    global:
-        g_global_data_sim;
-        g_global_data;
-        enclave_entry;
-        g_peak_heap_used;
-    local:
-        *;
-};

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Enclave1_private.pem

@@ -1,39 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIG4wIBAAKCAYEAuJh4w/KzndQhzEqwH6Ut/3BmOom5CN117KT1/cemEbDLPhn0
-c5yjAfe4NL1qtGqz0RTK9X9BBSi89b6BrsM9S6c2cUJaeYAPrAtJ+IuzN/5BAmmf
-RXbPccETd7rHvDdQ9KBRjCipTx+H0D5nOB76S5PZPVrduwrCmSqVFmLNVWWfPYQx
-YewbJ2QfEfioICZFYR0Jou38mJqDTl+CH0gLAuQ4n1kdpQ3VGymzt3oUiPzf5ImJ
-oZh5HjarRRiWV+cyNyXYJTnx0dOtFQDgd8HhniagbRB0ZOIt6599JjMkWGkVP0Ni
-U/NIlXG5musU35GfLB8MbTcxblMNm9sMYz1R8y/eAreoPTXUhtK8NG2TEywRh3UP
-RF9/jM9WczjQXxJ3RznKOwNVwg4cRY2AOqD2vb1iGSqyc/WMzVULgfclkcScp75/
-Auz9Y6473CQvaxyrseSWHGwCG7KG1GxYE8Bg8T6OlYD4mzKggoMdwVLAzUepRaPZ
-5hqRDZzbTGUxJ+GLAgEDAoIBgHsQUIKhzRPiwTLcdWpuHqpK7tGxJgXo+Uht+VPa
-brZ13NQRTaJobKv6es3TnHhHIotjMfj/gK4bKKPUVnSCKN0aJEuBkaZVX8gHhqWy
-d3qpgKxGai5PNPaAt6UnL9LPi03ANl1wcN9qWorURNAUpt0NO348k9IHLGYcY2RB
-3jjuaikCy5adZ2+YFLalxWrELkC+BmyeqGW8V4mVAWowB1dC0Go7aRiz42dxInpR
-YwX96phbsRZlphQkci4QZDqaIFg3ndzTO5bo704zaMcbWtEjmFrYRyb519tRoDkN
-Y0rGwOxFANeRV5dSfGGLm7K5JztiuHN0nMu3PhY4LOV0SeZ4+5sYn0LzB2nyKqgy
-/c3AA2OG34DEdGxxh94kD66iKFVPyJG38/gnu9CsGmrLl3n4fgutPEVIbPdSSjex
-4Y9EQfcnqImPxTrpP9CqD208VPcQHD/uy8s9q3961Ew3RPdHMZ8amIJdXkOmPEme
-KZ7SG+VENBaj8r038iq1mPzcWwKBwQDcvJg75LfVuKX+cWMrTO2+MFVcEFiZ/NB/
-gh7mgL6lCleROVa9P6iR2Wn6vHq8nP5BkChehm/rXEG78fgXEMoArimF7FrrICfI
-4yB0opDJz/tWrE/62impN7OR8Ce+RQThFj4RTnibQEEVt++JMUXFiMKLdWDSpC2i
-tNWnlTOb7d89bk0yk62IoLElCZK/MIMxkCHBKW6YgrmvlPJKQwpA6Z3wQbUpE6Rb
-9f8xJfxZGEJPH0s3Ds9A0CVuEt8OOXcCgcEA1hXTHhhgmb2gIUJgIcvrpkDmiLux
-EG6ZoyLt6h5QwzScS6KKU1mcoJyVDd0wlt7mEXrPYYHWUWPuvpTQ8/4ZGMw7FCZe
-bakhnwRbw36FlLwRG35wCF6nQO1XFBKRGto15ivfTyDvMpJBdtNpET5NwT/ifDF3
-OWS7t6TGhtcfnvBad5S1AgGoAq+q/huFiBGpDbxJ+1xh0lNL5Z8nVypvPWomNpde
-rpLuwRPEIb+GBfQ9Hp5AjRXVsPjKnkHsnl2NAoHBAJMoZX1DJTklw/72Qhzd89Qg
-OOgK5bv94FUBae8Afxixj7YmOdN/xbaQ8VHS/H29/tZgGumu9UeS1n1L+roLMVXJ
-cQPy50dqxTCXavhsYIaKp48diqc8G8YlImFKxSmDWJYO1AuJpbzVgLklSlt2LoOw
-gbJOQIxtc8HN48UOImfz6ij0M3cNHlsVy24GYdTLAiEKwStw9GWse8pjTDGCBtXx
-E/WBI3C3wuf5VMtuqDtlgYoU3M9fNNXgGPQMlLQmTwKBwQCOuTdpZZW708AWLEAW
-h/Ju1e8F0nYK9GZswfPxaYsszb2HwbGM5mhrEw4JPiBklJlg/IpBATmLl/R/DeCi
-qWYQiCdixD7zxhZqAufXqa5jKAtnqaAFlG+AnjoNYbYR5s6ZcpTfa0ohttZPN5tg
-1DPWKpb9dk97mH0lGIRZ5L+/Sub6YyNWq8VXH8dUElkFYRtefYankuvhjN1Dv2+P
-cZ9+RsQkZOnJt0nWDS1r1QQD+Ci/FCsIuTkgpdxpgUhpk7MCgcEAkfkmaBDb7DG2
-Kc39R6ZZuPnV10w+WOpph7ugwcguG/E0wGq+jFWv6HFckCPeHT4BNtOk8Dem/kPp
-teF51eAuFWEefj2tScvlSBBPcnla+WzMWXrlxVnajTt73w+oT2Ql//WhgREpsNfx
-SvU80YPVu4GJfl+hhxBifLx+0FM20OESW93qFRc3p040bNrDY9JIZuly/y5zaiBa
-mRZF9H8P+x3Lu5AJpdXQEOMZ/XJ/xkoWWjbTojkmgOmmZSMLd5Te
------END RSA PRIVATE KEY-----

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Utility_E1.cpp

@@ -1,222 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "sgx_eid.h"
-#include "EnclaveMessageExchange.h"
-#include "error_codes.h"
-#include "Utility_E1.h"
-#include "stdlib.h"
-#include "string.h"
-
-uint32_t marshal_input_parameters_e2_foo1(uint32_t target_fn_id, uint32_t msg_type, uint32_t var1, uint32_t var2, char** marshalled_buff, size_t* marshalled_buff_len)
-{
-    ms_in_msg_exchange_t *ms;
-    size_t param_len, ms_len;
-    char *temp_buff;
-        
-    param_len = sizeof(var1)+sizeof(var2);
-    temp_buff = (char*)malloc(param_len);
-    if(!temp_buff)
-        return MALLOC_ERROR;
-
-    memcpy(temp_buff,&var1,sizeof(var1));
-    memcpy(temp_buff+sizeof(var1),&var2,sizeof(var2));
-    ms_len = sizeof(ms_in_msg_exchange_t) + param_len;
-    ms = (ms_in_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-    {
-        SAFE_FREE(temp_buff);
-        return MALLOC_ERROR;
-    }
-    ms->msg_type = msg_type;
-    ms->target_fn_id = target_fn_id;
-    ms->inparam_buff_len = (uint32_t)param_len;
-    memcpy(&ms->inparam_buff, temp_buff, param_len);
-    *marshalled_buff = (char*)ms;
-    *marshalled_buff_len = ms_len;
-    SAFE_FREE(temp_buff);
-    return SUCCESS;
-}
-
-uint32_t unmarshal_retval_and_output_parameters_e2_foo1(char* out_buff, char** retval)
-{
-    size_t retval_len;
-    ms_out_msg_exchange_t *ms;
-    if(!out_buff)
-        return INVALID_PARAMETER_ERROR;
-    ms = (ms_out_msg_exchange_t *)out_buff;
-    retval_len = ms->retval_len;
-    *retval = (char*)malloc(retval_len);
-    if(!*retval)
-        return MALLOC_ERROR;
-
-    memcpy(*retval, ms->ret_outparam_buff, retval_len);
-    return SUCCESS;
-}
-
-uint32_t unmarshal_input_parameters_e1_foo1(external_param_struct_t *pstruct, ms_in_msg_exchange_t* ms)
-{
-    char* buff;
-    size_t len;
-    if(!pstruct || !ms)
-        return INVALID_PARAMETER_ERROR;
-
-    buff = ms->inparam_buff;
-    len = ms->inparam_buff_len;
-    if(len != (sizeof(pstruct->var1)+sizeof(pstruct->var2)+sizeof(pstruct->p_internal_struct->ivar1)+sizeof(pstruct->p_internal_struct->ivar2)))
-        return ATTESTATION_ERROR;
-
-    memcpy(&pstruct->var1, buff, sizeof(pstruct->var1));
-    memcpy(&pstruct->var2, buff + sizeof(pstruct->var1), sizeof(pstruct->var2));
-    memcpy(&pstruct->p_internal_struct->ivar1, buff+(sizeof(pstruct->var1)+sizeof(pstruct->var2)), sizeof(pstruct->p_internal_struct->ivar1)); 
-    memcpy(&pstruct->p_internal_struct->ivar2, buff+(sizeof(pstruct->var1)+sizeof(pstruct->var2)+sizeof(pstruct->p_internal_struct->ivar1)), sizeof(pstruct->p_internal_struct->ivar2));
-
-    return SUCCESS;
-}
-
-uint32_t marshal_retval_and_output_parameters_e1_foo1(char** resp_buffer, size_t* resp_length, uint32_t retval, external_param_struct_t *p_struct_var, size_t len_data, size_t len_ptr_data)
-{
-    ms_out_msg_exchange_t *ms;
-    size_t param_len, ms_len, ret_param_len;;
-    char *temp_buff;
-    int* addr;
-    char* struct_data;
-    size_t retval_len;
-    
-    if(!resp_length || !p_struct_var)
-        return INVALID_PARAMETER_ERROR;
-
-    retval_len = sizeof(retval);
-    struct_data = (char*)p_struct_var;    
-    param_len = len_data + len_ptr_data;
-    ret_param_len = param_len + retval_len;
-    addr = *(int **)(struct_data + len_data);
-    temp_buff = (char*)malloc(ret_param_len);
-    if(!temp_buff)
-        return MALLOC_ERROR;
-
-    memcpy(temp_buff, &retval, sizeof(retval)); 
-    memcpy(temp_buff + sizeof(retval), struct_data, len_data);
-    memcpy(temp_buff + sizeof(retval) + len_data, addr, len_ptr_data);
-    ms_len = sizeof(ms_out_msg_exchange_t) + ret_param_len;
-    ms = (ms_out_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-    {
-        SAFE_FREE(temp_buff);
-        return MALLOC_ERROR;
-    }
-    ms->retval_len = (uint32_t)retval_len;
-    ms->ret_outparam_buff_len = (uint32_t)ret_param_len;
-    memcpy(&ms->ret_outparam_buff, temp_buff, ret_param_len);
-    *resp_buffer = (char*)ms;
-    *resp_length = ms_len;
-    
-    SAFE_FREE(temp_buff);
-    return SUCCESS;
-}
-
-uint32_t marshal_message_exchange_request(uint32_t target_fn_id, uint32_t msg_type, uint32_t secret_data, char** marshalled_buff, size_t* marshalled_buff_len)
-{
-    ms_in_msg_exchange_t *ms;
-    size_t secret_data_len, ms_len;
-    if(!marshalled_buff_len)
-        return INVALID_PARAMETER_ERROR;
-    secret_data_len = sizeof(secret_data);
-    ms_len = sizeof(ms_in_msg_exchange_t) + secret_data_len;
-    ms = (ms_in_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-        return MALLOC_ERROR;
-
-    ms->msg_type = msg_type;
-    ms->target_fn_id = target_fn_id;
-    ms->inparam_buff_len = (uint32_t)secret_data_len;
-    memcpy(&ms->inparam_buff, &secret_data, secret_data_len);
-    *marshalled_buff = (char*)ms;
-    *marshalled_buff_len = ms_len;
-     return SUCCESS;
-}
-
-uint32_t umarshal_message_exchange_request(uint32_t* inp_secret_data, ms_in_msg_exchange_t* ms)
-{
-    char* buff;
-    size_t len;
-    if(!inp_secret_data || !ms)
-        return INVALID_PARAMETER_ERROR;
-    buff = ms->inparam_buff;
-    len = ms->inparam_buff_len;
-    if(len != sizeof(uint32_t))
-        return ATTESTATION_ERROR;
-
-    memcpy(inp_secret_data, buff, sizeof(uint32_t));    
-
-    return SUCCESS;
-}
-
-uint32_t marshal_message_exchange_response(char** resp_buffer, size_t* resp_length, uint32_t secret_response)
-{
-    ms_out_msg_exchange_t *ms;
-    size_t secret_response_len, ms_len;
-    size_t retval_len, ret_param_len;
-    if(!resp_length)
-        return INVALID_PARAMETER_ERROR;
-    secret_response_len = sizeof(secret_response);
-    retval_len = secret_response_len;
-    ret_param_len = secret_response_len;
-    ms_len = sizeof(ms_out_msg_exchange_t) + ret_param_len;
-    ms = (ms_out_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-        return MALLOC_ERROR;
-
-    ms->retval_len = (uint32_t)retval_len;
-    ms->ret_outparam_buff_len = (uint32_t)ret_param_len;
-    memcpy(&ms->ret_outparam_buff, &secret_response, secret_response_len);
-    *resp_buffer = (char*)ms;
-    *resp_length = ms_len;
-    return SUCCESS;
-}
-
-uint32_t umarshal_message_exchange_response(char* out_buff, char** secret_response)
-{
-    size_t retval_len;
-    ms_out_msg_exchange_t *ms;
-    if(!out_buff)
-        return INVALID_PARAMETER_ERROR;
-    ms = (ms_out_msg_exchange_t *)out_buff;
-    retval_len = ms->retval_len;
-    *secret_response = (char*)malloc(retval_len);
-    if(!*secret_response)
-    {
-        return MALLOC_ERROR;
-    }
-    memcpy(*secret_response, ms->ret_outparam_buff, retval_len);
-    return SUCCESS;
-}
-

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Utility_E1.h

@@ -1,65 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef UTILITY_E1_H__
-#define UTILITY_E1_H__
-
-#include "stdint.h"
-
-typedef struct _internal_param_struct_t
-{
-    uint32_t ivar1;
-    uint32_t ivar2;
-}internal_param_struct_t;
-
-typedef struct _external_param_struct_t
-{
-    uint32_t var1;
-    uint32_t var2;
-    internal_param_struct_t *p_internal_struct;
-}external_param_struct_t;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-uint32_t marshal_input_parameters_e2_foo1(uint32_t target_fn_id, uint32_t msg_type, uint32_t var1, uint32_t var2, char** marshalled_buff, size_t* marshalled_buff_len);
-uint32_t unmarshal_retval_and_output_parameters_e2_foo1(char* out_buff, char** retval);
-uint32_t unmarshal_input_parameters_e1_foo1(external_param_struct_t *pstruct, ms_in_msg_exchange_t* ms);
-uint32_t marshal_retval_and_output_parameters_e1_foo1(char** resp_buffer, size_t* resp_length, uint32_t retval, external_param_struct_t *p_struct_var, size_t len_data, size_t len_ptr_data);
-uint32_t marshal_message_exchange_request(uint32_t target_fn_id, uint32_t msg_type, uint32_t secret_data, char** marshalled_buff, size_t* marshalled_buff_len);
-uint32_t umarshal_message_exchange_request(uint32_t* inp_secret_data, ms_in_msg_exchange_t* ms);
-uint32_t marshal_message_exchange_response(char** resp_buffer, size_t* resp_length, uint32_t secret_response);
-uint32_t umarshal_message_exchange_response(char* out_buff, char** secret_response);
-#ifdef __cplusplus
- }
-#endif
-#endif

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Enclave2.config.xml

@@ -1,12 +0,0 @@
-<EnclaveConfiguration> 
-  <ProdID>0</ProdID> 
-  <ISVSVN>0</ISVSVN> 
-  <StackMaxSize>0x40000</StackMaxSize> 
-  <HeapMaxSize>0x100000</HeapMaxSize> 
-  <TCSNum>1</TCSNum> 
-  <TCSPolicy>1</TCSPolicy>
-  <!-- Recommend changing 'DisableDebug' to 1 to make the enclave undebuggable for enclave release -->
-  <DisableDebug>0</DisableDebug>
-  <MiscSelect>0</MiscSelect>
-  <MiscMask>0xFFFFFFFF</MiscMask>
-</EnclaveConfiguration>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Enclave2.cpp

@@ -1,339 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-// Enclave2.cpp : Defines the exported functions for the DLL application
-#include "sgx_eid.h"
-#include "Enclave2_t.h"
-#include "EnclaveMessageExchange.h"
-#include "error_codes.h"
-#include "Utility_E2.h"
-#include "sgx_thread.h"
-#include "sgx_dh.h"
-#include <map>
-
-#define UNUSED(val) (void)(val)
-
-std::map<sgx_enclave_id_t, dh_session_t>g_src_session_info_map;
-
-static uint32_t e2_foo1_wrapper(ms_in_msg_exchange_t *ms, size_t param_lenth, char** resp_buffer, size_t* resp_length);
-
-//Function pointer table containing the list of functions that the enclave exposes
-const struct {
-    size_t num_funcs;
-    const void* table[1];
-} func_table = {
-    1,
-    {
-        (const void*)e2_foo1_wrapper,
-    }
-};
-
-//Makes use of the sample code function to establish a secure channel with the destination enclave
-uint32_t test_create_session(sgx_enclave_id_t src_enclave_id,
-                          sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    dh_session_t dest_session_info;
-    //Core reference code function for creating a session
-    ke_status = create_session(src_enclave_id, dest_enclave_id,&dest_session_info);
-    if(ke_status == SUCCESS)
-    {
-        //Insert the session information into the map under the corresponding destination enclave id
-        g_src_session_info_map.insert(std::pair<sgx_enclave_id_t, dh_session_t>(dest_enclave_id, dest_session_info));
-    }
-    memset(&dest_session_info, 0, sizeof(dh_session_t));
-    return ke_status;
-}
-
-//Makes use of the sample code function to do an enclave to enclave call (Test Vector)
-uint32_t test_enclave_to_enclave_call(sgx_enclave_id_t src_enclave_id,
-                                          sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    param_struct_t *p_struct_var, struct_var;
-    uint32_t target_fn_id, msg_type;
-    char* marshalled_inp_buff;
-    size_t marshalled_inp_buff_len;
-    char* out_buff;
-    size_t out_buff_len;
-    dh_session_t *dest_session_info;
-    size_t max_out_buff_size;
-    char* retval;
-
-    max_out_buff_size = 50;
-    target_fn_id = 0;
-    msg_type = ENCLAVE_TO_ENCLAVE_CALL;
-
-    struct_var.var1 = 0x3;
-    struct_var.var2 = 0x4;
-    p_struct_var = &struct_var;
-
-    //Marshals the input parameters for calling function foo1 in Enclave3 into a input buffer
-    ke_status = marshal_input_parameters_e3_foo1(target_fn_id, msg_type, p_struct_var, &marshalled_inp_buff, &marshalled_inp_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        return ke_status;
-    }
-
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-         dest_session_info = &it->second;
-    }
-    else
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        return INVALID_SESSION;
-    }
-
-    //Core Reference Code function
-    ke_status = send_request_receive_response(src_enclave_id, dest_enclave_id, dest_session_info, marshalled_inp_buff,
-                                               marshalled_inp_buff_len, max_out_buff_size, &out_buff, &out_buff_len);
-
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    //Un-marshal the return value and output parameters from foo1 of Enclave3
-    ke_status = unmarshal_retval_and_output_parameters_e3_foo1(out_buff, p_struct_var, &retval);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    SAFE_FREE(marshalled_inp_buff);
-    SAFE_FREE(out_buff);
-    SAFE_FREE(retval);
-    return SUCCESS;
-}
-
-//Makes use of the sample code function to do a generic secret message exchange (Test Vector)
-uint32_t test_message_exchange(sgx_enclave_id_t src_enclave_id,
-                               sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    uint32_t target_fn_id, msg_type;
-    char* marshalled_inp_buff;
-    size_t marshalled_inp_buff_len;
-    char* out_buff;
-    size_t out_buff_len;
-    dh_session_t *dest_session_info;
-    size_t max_out_buff_size;
-    char* secret_response;
-    uint32_t secret_data;
-
-    target_fn_id = 0;
-    msg_type = MESSAGE_EXCHANGE;
-    max_out_buff_size = 50;
-    secret_data = 0x12345678; //Secret Data here is shown only for purpose of demonstration.
-
-    //Marshals the secret data into a buffer
-    ke_status = marshal_message_exchange_request(target_fn_id, msg_type, secret_data, &marshalled_inp_buff, &marshalled_inp_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        return ke_status;
-    }
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-           dest_session_info = &it->second;
-    }
-    else
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        return INVALID_SESSION;
-    }
-
-    //Core Reference Code function
-    ke_status = send_request_receive_response(src_enclave_id, dest_enclave_id, dest_session_info, marshalled_inp_buff,
-                                                marshalled_inp_buff_len, max_out_buff_size, &out_buff, &out_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    //Un-marshal the secret response data
-    ke_status = umarshal_message_exchange_response(out_buff, &secret_response);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    SAFE_FREE(marshalled_inp_buff);
-    SAFE_FREE(out_buff);
-    SAFE_FREE(secret_response);
-    return SUCCESS;
-}
-
-
-//Makes use of the sample code function to close a current session
-uint32_t test_close_session(sgx_enclave_id_t src_enclave_id,
-                                sgx_enclave_id_t dest_enclave_id)
-{
-    dh_session_t dest_session_info;
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-         dest_session_info = it->second;
-    }
-    else
-    {
-        return NULL;
-    }
-    //Core reference code function for closing a session
-    ke_status = close_session(src_enclave_id, dest_enclave_id);
-
-    //Erase the session information associated with the destination enclave id
-    g_src_session_info_map.erase(dest_enclave_id);
-    return ke_status;
-}
-
-//Function that is used to verify the trust of the other enclave
-//Each enclave can have its own way verifying the peer enclave identity
-extern "C" uint32_t verify_peer_enclave_trust(sgx_dh_session_enclave_identity_t* peer_enclave_identity)
-{
-    if(!peer_enclave_identity)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    if(peer_enclave_identity->isv_prod_id != 0 || !(peer_enclave_identity->attributes.flags & SGX_FLAGS_INITTED))
-        // || peer_enclave_identity->attributes.xfrm !=3)// || peer_enclave_identity->mr_signer != xx //TODO: To be hardcoded with values to check
-    {
-        return ENCLAVE_TRUST_ERROR;
-    }
-    else
-    {
-        return SUCCESS;
-    }
-}
-
-//Dispatch function that calls the approriate enclave function based on the function id
-//Each enclave can have its own way of dispatching the calls from other enclave
-extern "C" uint32_t enclave_to_enclave_call_dispatcher(char* decrypted_data,
-                                                       size_t decrypted_data_length,
-                                                       char** resp_buffer,
-                                                       size_t* resp_length)
-{
-    ms_in_msg_exchange_t *ms;
-    uint32_t (*fn1)(ms_in_msg_exchange_t *ms, size_t, char**, size_t*);
-    if(!decrypted_data || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    ms = (ms_in_msg_exchange_t *)decrypted_data;
-    if(ms->target_fn_id >= func_table.num_funcs)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    fn1 = (uint32_t (*)(ms_in_msg_exchange_t*, size_t, char**, size_t*))func_table.table[ms->target_fn_id];
-    return fn1(ms, decrypted_data_length, resp_buffer, resp_length);
-}
-
-//Operates on the input secret and generates the output secret
-uint32_t get_message_exchange_response(uint32_t inp_secret_data)
-{
-    uint32_t secret_response;
-
-    //User should use more complex encryption method to protect their secret, below is just a simple example
-    secret_response = inp_secret_data & 0x11111111;
-
-    return secret_response;
-
-}
-
-//Generates the response from the request message
-extern "C" uint32_t message_exchange_response_generator(char* decrypted_data,
-                                              char** resp_buffer,
-                                               size_t* resp_length)
-{
-    ms_in_msg_exchange_t *ms;
-    uint32_t inp_secret_data;
-    uint32_t out_secret_data;
-    if(!decrypted_data || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    ms = (ms_in_msg_exchange_t *)decrypted_data;
-
-    if(umarshal_message_exchange_request(&inp_secret_data,ms) != SUCCESS)
-        return ATTESTATION_ERROR;
-
-    out_secret_data = get_message_exchange_response(inp_secret_data);
-
-    if(marshal_message_exchange_response(resp_buffer, resp_length, out_secret_data) != SUCCESS)
-        return MALLOC_ERROR;
-
-    return SUCCESS;
-
-}
-
-static uint32_t e2_foo1(uint32_t var1, uint32_t var2)
-{
-    return(var1 + var2);
-}
-
-//Function which is executed on request from the source enclave
-static uint32_t e2_foo1_wrapper(ms_in_msg_exchange_t *ms,
-                    size_t param_lenth,
-                    char** resp_buffer,
-                    size_t* resp_length)
-{
-    UNUSED(param_lenth);
-
-    uint32_t var1,var2,ret;
-    if(!ms || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    if(unmarshal_input_parameters_e2_foo1(&var1, &var2, ms) != SUCCESS)
-        return ATTESTATION_ERROR;
-
-    ret = e2_foo1(var1, var2);
-
-    if(marshal_retval_and_output_parameters_e2_foo1(resp_buffer, resp_length, ret) != SUCCESS )
-        return MALLOC_ERROR; //can set resp buffer to null here
-
-    return SUCCESS;
-}

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Enclave2.edl

@@ -1,43 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-enclave {
-    include "sgx_eid.h"
-    from "../LocalAttestationCode/LocalAttestationCode.edl" import *;
-    from "sgx_tstdc.edl" import *;
-    trusted{
-              public uint32_t test_create_session(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-            public uint32_t test_enclave_to_enclave_call(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-            public uint32_t test_message_exchange(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-            public uint32_t test_close_session(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-    };
-};

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Enclave2.lds

@@ -1,10 +0,0 @@
-Enclave2.so
-{
-    global:
-        g_global_data_sim;
-        g_global_data;
-        enclave_entry;
-        g_peak_heap_used;
-    local:
-        *;
-};

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Enclave2_private.pem

@@ -1,39 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIG4gIBAAKCAYEAroOogvsj/fZDZY8XFdkl6dJmky0lRvnWMmpeH41Bla6U1qLZ
-AmZuyIF+mQC/cgojIsrBMzBxb1kKqzATF4+XwPwgKz7fmiddmHyYz2WDJfAjIveJ
-ZjdMjM4+EytGlkkJ52T8V8ds0/L2qKexJ+NBLxkeQLfV8n1mIk7zX7jguwbCG1Pr
-nEMdJ3Sew20vnje+RsngAzdPChoJpVsWi/K7cettX/tbnre1DL02GXc5qJoQYk7b
-3zkmhz31TgFrd9VVtmUGyFXAysuSAb3EN+5VnHGr0xKkeg8utErea2FNtNIgua8H
-ONfm9Eiyaav1SVKzPHlyqLtcdxH3I8Wg7yqMsaprZ1n5A1v/levxnL8+It02KseD
-5HqV4rf/cImSlCt3lpRg8U5E1pyFQ2IVEC/XTDMiI3c+AR+w2jSRB3Bwn9zJtFlW
-KHG3m1xGI4ck+Lci1JvWWLXQagQSPtZTsubxTQNx1gsgZhgv1JHVZMdbVlAbbRMC
-1nSuJNl7KPAS/VfzAgEDAoIBgHRXxaynbVP5gkO0ug6Qw/E27wzIw4SmjsxG6Wpe
-K7kfDeRskKxESdsA/xCrKkwGwhcx1iIgS5+Qscd1Yg+1D9X9asd/P7waPmWoZd+Z
-AhlKwhdPsO7PiF3e1AzHhGQwsUTt/Y/aSI1MpHBvy2/s1h9mFCslOUxTmWw0oj/Q
-ldIEgWeNR72CE2+jFIJIyml6ftnb6qzPiga8Bm48ubKh0kvySOqnkmnPzgh+JBD6
-JnBmtZbfPT97bwTT+N6rnPqOOApvfHPf15kWI8yDbprG1l4OCUaIUH1AszxLd826
-5IPM+8gINLRDP1MA6azECPjTyHXhtnSIBZCyWSVkc05vYmNXYUNiXWMajcxW9M02
-wKzFELO8NCEAkaTPxwo4SCyIjUxiK1LbQ9h8PSy4c1+gGP4LAMR8xqP4QKg6zdu9
-osUGG/xRe/uufgTBFkcjqBHtK5L5VI0jeNIUAgW/6iNbYXjBMJ0GfauLs+g1VsOm
-WfdgXzsb9DYdMa0OXXHypmV4GwKBwQDUwQj8RKJ6c8cT4vcWCoJvJF00+RFL+P3i
-Gx2DLERxRrDa8AVGfqaCjsR+3vLgG8V/py+z+dxZYSqeB80Qeo6PDITcRKoeAYh9
-xlT3LJOS+k1cJcEmlbbO2IjLkTmzSwa80fWexKu8/Xv6vv15gpqYl1ngYoqJM3pd
-vzmTIOi7MKSZ0WmEQavrZj8zK4endE3v0eAEeQ55j1GImbypSf7Idh7wOXtjZ7WD
-Dg6yWDrri+AP/L3gClMj8wsAxMV4ZR8CgcEA0fzDHkFa6raVOxWnObmRoDhAtE0a
-cjUj976NM5yyfdf2MrKy4/RhdTiPZ6b08/lBC/+xRfV3xKVGzacm6QjqjZrUpgHC
-0LKiZaMtccCJjLtPwQd0jGQEnKfMFaPsnhOc5y8qVkCzVOSthY5qhz0XNotHHFmJ
-gffVgB0iqrMTvSL7IA2yqqpOqNRlhaYhNl8TiFP3gIeMtVa9rZy31JPgT2uJ+kfo
-gV7sdTPEjPWZd7OshGxWpT6QfVDj/T9T7L6tAoHBAI3WBf2DFvxNL2KXT2QHAZ9t
-k3imC4f7U+wSE6zILaDZyzygA4RUbwG0gv8/TJVn2P/Eynf76DuWHGlaiLWnCbSz
-Az2DHBQBBaku409zDQym3j1ugMRjzzSQWzJg0SIyBH3hTmnYcn3+Uqcp/lEBvGW6
-O+rsXFt3pukqJmIV8HzLGGaLm62BHUeZf3dyWm+i3p/hQAL7Xvu04QW70xuGqdr5
-afV7p5eaeQIJXyGQJ0eylV/90+qxjMKiB1XYg6WYvwKBwQCL/ddpgOdHJGN8uRom
-e7Zq0Csi3hGheMKlKbN3vcxT5U7MdyHtTZZOJbTvxKNNUNYH/8uD+PqDGNneb29G
-BfGzvI3EASyLIcGZF3OhKwZd0jUrWk2y7Vhob91jwp2+t73vdMbkKyI4mHOuXvGv
-fg95si9oO7EBT+Oqvhccd2J+F1IVXncccYnF4u5ZGWt5lLewN/pVr7MjjykeaHqN
-t+rfnQam2psA6fL4zS2zTmZPzR2tnY8Y1GBTi0Ko1OKd1HMCgcAb5cB/7/AQlhP9
-yQa04PLH9ygQkKKptZp7dy5WcWRx0K/hAHRoi2aw1wZqfm7VBNu2SLcs90kCCCxp
-6C5sfJi6b8NpNbIPC+sc9wsFr7pGo9SFzQ78UlcWYK2Gu2FxlMjonhka5hvo4zvg
-WxlpXKEkaFt3gLd92m/dMqBrHfafH7VwOJY2zT3WIpjwuk0ZzmRg5p0pG/svVQEH
-NZmwRwlopysbR69B/n1nefJ84UO50fLh5s5Zr3gBRwbWNZyzhXk=
------END RSA PRIVATE KEY-----

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Utility_E2.cpp

@@ -1,213 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "sgx_eid.h"
-#include "EnclaveMessageExchange.h"
-#include "error_codes.h"
-#include "Utility_E2.h"
-#include "stdlib.h"
-#include "string.h"
-
-uint32_t marshal_input_parameters_e3_foo1(uint32_t target_fn_id, uint32_t msg_type, param_struct_t *p_struct_var, char** marshalled_buff, size_t* marshalled_buff_len)
-{
-    ms_in_msg_exchange_t *ms;
-    size_t param_len, ms_len;
-    char *temp_buff;
-    if(!p_struct_var || !marshalled_buff_len)
-        return INVALID_PARAMETER_ERROR;    
-    param_len = sizeof(param_struct_t);
-    temp_buff = (char*)malloc(param_len);
-    if(!temp_buff)
-        return MALLOC_ERROR;
-    memcpy(temp_buff, p_struct_var, sizeof(param_struct_t)); //can be optimized
-    ms_len = sizeof(ms_in_msg_exchange_t) + param_len;
-    ms = (ms_in_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-    {
-        SAFE_FREE(temp_buff);
-        return MALLOC_ERROR;
-    }
-    ms->msg_type = msg_type;
-    ms->target_fn_id = target_fn_id;
-    ms->inparam_buff_len = (uint32_t)param_len;
-    memcpy(&ms->inparam_buff, temp_buff, param_len);
-    *marshalled_buff = (char*)ms;
-    *marshalled_buff_len = ms_len;
-    SAFE_FREE(temp_buff);
-    return SUCCESS;
-}
-
-uint32_t unmarshal_retval_and_output_parameters_e3_foo1(char* out_buff, param_struct_t *p_struct_var, char** retval)
-{
-    size_t retval_len;
-    ms_out_msg_exchange_t *ms;
-    if(!out_buff)
-        return INVALID_PARAMETER_ERROR;
-    ms = (ms_out_msg_exchange_t *)out_buff;
-    retval_len = ms->retval_len;
-    *retval = (char*)malloc(retval_len);
-    if(!*retval)
-    {
-        return MALLOC_ERROR;
-    }
-    memcpy(*retval, ms->ret_outparam_buff, retval_len);
-    memcpy(&p_struct_var->var1, (ms->ret_outparam_buff) + retval_len, sizeof(p_struct_var->var1));
-    memcpy(&p_struct_var->var2, (ms->ret_outparam_buff) + retval_len + sizeof(p_struct_var->var1), sizeof(p_struct_var->var2));
-    return SUCCESS;
-}
-
-
-uint32_t unmarshal_input_parameters_e2_foo1(uint32_t* var1, uint32_t* var2, ms_in_msg_exchange_t* ms)
-{
-    char* buff;
-    size_t len;
-    if(!var1 || !var2 || !ms)
-        return INVALID_PARAMETER_ERROR;
-
-    buff = ms->inparam_buff;
-    len = ms->inparam_buff_len;
-
-    if(len != (sizeof(*var1) + sizeof(*var2)))
-        return ATTESTATION_ERROR;
-
-    memcpy(var1, buff, sizeof(*var1));
-    memcpy(var2, buff + sizeof(*var1), sizeof(*var2));
-
-    return SUCCESS;
-}
-
-uint32_t marshal_retval_and_output_parameters_e2_foo1(char** resp_buffer, size_t* resp_length, uint32_t retval)
-{
-    ms_out_msg_exchange_t *ms;
-    size_t ret_param_len, ms_len;
-    char *temp_buff;
-    size_t retval_len;
-    if(!resp_length)
-        return INVALID_PARAMETER_ERROR;
-    retval_len = sizeof(retval);
-    ret_param_len = retval_len; //no out parameters
-    temp_buff = (char*)malloc(ret_param_len);
-    if(!temp_buff)
-        return MALLOC_ERROR;
-
-    memcpy(temp_buff, &retval, sizeof(retval)); 
-    ms_len = sizeof(ms_out_msg_exchange_t) + ret_param_len;
-    ms = (ms_out_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-    {
-        SAFE_FREE(temp_buff);
-        return MALLOC_ERROR;
-    }
-    ms->retval_len = (uint32_t)retval_len;
-    ms->ret_outparam_buff_len = (uint32_t)ret_param_len;
-    memcpy(&ms->ret_outparam_buff, temp_buff, ret_param_len);
-    *resp_buffer = (char*)ms;
-    *resp_length = ms_len;
-    SAFE_FREE(temp_buff);
-    return SUCCESS;
-}
-
-uint32_t marshal_message_exchange_request(uint32_t target_fn_id, uint32_t msg_type, uint32_t secret_data, char** marshalled_buff, size_t* marshalled_buff_len)
-{
-    ms_in_msg_exchange_t *ms;
-    size_t secret_data_len, ms_len;
-    if(!marshalled_buff_len)
-        return INVALID_PARAMETER_ERROR;    
-    secret_data_len = sizeof(secret_data);
-    ms_len = sizeof(ms_in_msg_exchange_t) + secret_data_len;
-    ms = (ms_in_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-        return MALLOC_ERROR;
-
-    ms->msg_type = msg_type;
-    ms->target_fn_id = target_fn_id;
-    ms->inparam_buff_len = (uint32_t)secret_data_len;
-    memcpy(&ms->inparam_buff, &secret_data, secret_data_len);
-    *marshalled_buff = (char*)ms;
-    *marshalled_buff_len = ms_len;
-    return SUCCESS;
-}
-
-uint32_t umarshal_message_exchange_request(uint32_t* inp_secret_data, ms_in_msg_exchange_t* ms)
-{
-    char* buff;
-    size_t len;
-    if(!inp_secret_data || !ms)
-        return INVALID_PARAMETER_ERROR;    
-    buff = ms->inparam_buff;
-    len = ms->inparam_buff_len;
-    if(len != sizeof(uint32_t))
-        return ATTESTATION_ERROR;
-
-    memcpy(inp_secret_data, buff, sizeof(uint32_t));
-
-    return SUCCESS;
-}
-
-
-uint32_t marshal_message_exchange_response(char** resp_buffer, size_t* resp_length, uint32_t secret_response)
-{
-    ms_out_msg_exchange_t *ms;
-    size_t secret_response_len, ms_len;
-    size_t retval_len, ret_param_len;
-    if(!resp_length)
-        return INVALID_PARAMETER_ERROR;    
-    secret_response_len = sizeof(secret_response);
-    retval_len = secret_response_len;
-    ret_param_len = secret_response_len;
-    ms_len = sizeof(ms_out_msg_exchange_t) + ret_param_len;
-    ms = (ms_out_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-        return MALLOC_ERROR;
-    ms->retval_len = (uint32_t)retval_len;
-    ms->ret_outparam_buff_len = (uint32_t)ret_param_len;
-    memcpy(&ms->ret_outparam_buff, &secret_response, secret_response_len);
-    *resp_buffer = (char*)ms;
-    *resp_length = ms_len;
-     return SUCCESS;
-}
-
-uint32_t umarshal_message_exchange_response(char* out_buff, char** secret_response)
-{
-    size_t retval_len;
-    ms_out_msg_exchange_t *ms;
-    if(!out_buff)
-        return INVALID_PARAMETER_ERROR;    
-    ms = (ms_out_msg_exchange_t *)out_buff;
-    retval_len = ms->retval_len;
-    *secret_response = (char*)malloc(retval_len);
-    if(!*secret_response)
-    {
-        return MALLOC_ERROR;
-    }
-    memcpy(*secret_response, ms->ret_outparam_buff, retval_len);
-    return SUCCESS;
-}

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Utility_E2.h

@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef UTILITY_E2_H__
-#define UTILITY_E2_H__
-#include "stdint.h"
-
-typedef struct _param_struct_t
-{
-    uint32_t var1;
-    uint32_t var2;
-}param_struct_t;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-uint32_t marshal_input_parameters_e3_foo1(uint32_t target_fn_id, uint32_t msg_type, param_struct_t *p_struct_var, char** marshalled_buff, size_t* marshalled_buff_len);
-uint32_t unmarshal_retval_and_output_parameters_e3_foo1(char* out_buff, param_struct_t *p_struct_var, char** retval);
-uint32_t unmarshal_input_parameters_e2_foo1(uint32_t* var1, uint32_t* var2, ms_in_msg_exchange_t* ms);
-uint32_t marshal_retval_and_output_parameters_e2_foo1(char** resp_buffer, size_t* resp_length, uint32_t retval);
-uint32_t marshal_message_exchange_request(uint32_t target_fn_id, uint32_t msg_type, uint32_t secret_data, char** marshalled_buff, size_t* marshalled_buff_len);
-uint32_t umarshal_message_exchange_request(uint32_t* inp_secret_data, ms_in_msg_exchange_t* ms);
-uint32_t marshal_message_exchange_response(char** resp_buffer, size_t* resp_length, uint32_t secret_response);
-uint32_t umarshal_message_exchange_response(char* out_buff, char** secret_response);
-
-#ifdef __cplusplus
- }
-#endif
-#endif
-

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Enclave3.config.xml

@@ -1,12 +0,0 @@
-<EnclaveConfiguration> 
-  <ProdID>0</ProdID> 
-  <ISVSVN>0</ISVSVN> 
-  <StackMaxSize>0x40000</StackMaxSize> 
-  <HeapMaxSize>0x100000</HeapMaxSize> 
-  <TCSNum>1</TCSNum> 
-  <TCSPolicy>1</TCSPolicy>
-  <!-- Recommend changing 'DisableDebug' to 1 to make the enclave undebuggable for enclave release -->
-  <DisableDebug>0</DisableDebug> 
-  <MiscSelect>0</MiscSelect>
-  <MiscMask>0xFFFFFFFF</MiscMask>
-</EnclaveConfiguration>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Enclave3.cpp

@@ -1,366 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-// Enclave3.cpp : Defines the exported functions for the DLL application
-#include "sgx_eid.h"
-#include "Enclave3_t.h"
-#include "EnclaveMessageExchange.h"
-#include "error_codes.h"
-#include "Utility_E3.h"
-#include "sgx_thread.h"
-#include "sgx_dh.h"
-#include <map>
-
-#define UNUSED(val) (void)(val)
-
-std::map<sgx_enclave_id_t, dh_session_t>g_src_session_info_map;
-
-static uint32_t e3_foo1_wrapper(ms_in_msg_exchange_t *ms, size_t param_lenth, char** resp_buffer, size_t* resp_length);
-
-//Function pointer table containing the list of functions that the enclave exposes
-const struct {
-    size_t num_funcs;
-    const void* table[1];
-} func_table = {
-    1,
-    {
-        (const void*)e3_foo1_wrapper,
-    }
-};
-
-//Makes use of the sample code function to establish a secure channel with the destination enclave
-uint32_t test_create_session(sgx_enclave_id_t src_enclave_id,
-                          sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    dh_session_t dest_session_info;
-    //Core reference code function for creating a session
-    ke_status = create_session(src_enclave_id, dest_enclave_id,&dest_session_info);
-    if(ke_status == SUCCESS)
-    {
-        //Insert the session information into the map under the corresponding destination enclave id
-        g_src_session_info_map.insert(std::pair<sgx_enclave_id_t, dh_session_t>(dest_enclave_id, dest_session_info));
-    }
-    memset(&dest_session_info, 0, sizeof(dh_session_t));
-    return ke_status;
-}
-
-//Makes use of the sample code function to do an enclave to enclave call (Test Vector)
-uint32_t test_enclave_to_enclave_call(sgx_enclave_id_t src_enclave_id,
-                                          sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    external_param_struct_t *p_struct_var, struct_var;
-    internal_param_struct_t internal_struct_var;
-    uint32_t target_fn_id, msg_type;
-    char* marshalled_inp_buff;
-    size_t marshalled_inp_buff_len;
-    char* out_buff;
-    size_t out_buff_len;
-    dh_session_t *dest_session_info;
-    size_t max_out_buff_size;
-    char* retval;
-
-    max_out_buff_size = 50;
-    msg_type = ENCLAVE_TO_ENCLAVE_CALL;
-    target_fn_id = 0;
-    internal_struct_var.ivar1 = 0x5;
-    internal_struct_var.ivar2 = 0x6;
-    struct_var.var1 = 0x3;
-    struct_var.var2 = 0x4;
-    struct_var.p_internal_struct = &internal_struct_var;
-    p_struct_var = &struct_var;
-
-    size_t len_data = sizeof(struct_var) - sizeof(struct_var.p_internal_struct);
-    size_t len_ptr_data = sizeof(internal_struct_var);
-
-    //Marshals the input parameters for calling function foo1 in Enclave1 into a input buffer
-    ke_status = marshal_input_parameters_e1_foo1(target_fn_id, msg_type, p_struct_var, len_data,
-                                len_ptr_data, &marshalled_inp_buff, &marshalled_inp_buff_len);
-
-    if(ke_status != SUCCESS)
-    {
-        return ke_status;
-    }
-
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-        dest_session_info = &it->second;
-    }
-    else
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        return INVALID_SESSION;
-    }
-
-    //Core Reference Code function
-    ke_status = send_request_receive_response(src_enclave_id, dest_enclave_id, dest_session_info,
-                  marshalled_inp_buff, marshalled_inp_buff_len, max_out_buff_size, &out_buff, &out_buff_len);
-
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    ////Un-marshal the return value and output parameters from foo1 of Enclave1
-    ke_status = unmarshal_retval_and_output_parameters_e1_foo1(out_buff, p_struct_var, &retval);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    SAFE_FREE(marshalled_inp_buff);
-    SAFE_FREE(out_buff);
-    SAFE_FREE(retval);
-    return SUCCESS;
-}
-
-//Makes use of the sample code function to do a generic secret message exchange (Test Vector)
-uint32_t test_message_exchange(sgx_enclave_id_t src_enclave_id,
-                               sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    uint32_t target_fn_id, msg_type;
-    char* marshalled_inp_buff;
-    size_t marshalled_inp_buff_len;
-    char* out_buff;
-    size_t out_buff_len;
-    dh_session_t *dest_session_info;
-    size_t max_out_buff_size;
-    char* secret_response;
-    uint32_t secret_data;
-
-    target_fn_id = 0;
-    msg_type = MESSAGE_EXCHANGE;
-    max_out_buff_size = 50;
-    secret_data = 0x12345678; //Secret Data here is shown only for purpose of demonstration.
-
-    //Marshals the parameters into a buffer
-    ke_status = marshal_message_exchange_request(target_fn_id, msg_type, secret_data, &marshalled_inp_buff, &marshalled_inp_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        return ke_status;
-    }
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-        dest_session_info = &it->second;
-    }
-    else
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        return INVALID_SESSION;
-    }
-
-    //Core Reference Code function
-    ke_status = send_request_receive_response(src_enclave_id, dest_enclave_id, dest_session_info, marshalled_inp_buff,
-                                                marshalled_inp_buff_len, max_out_buff_size, &out_buff, &out_buff_len);
-
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-    //Un-marshal the secret response data
-    ke_status = umarshal_message_exchange_response(out_buff, &secret_response);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    SAFE_FREE(marshalled_inp_buff);
-    SAFE_FREE(out_buff);
-    SAFE_FREE(secret_response);
-    return SUCCESS;
-}
-
-
-//Makes use of the sample code function to close a current session
-uint32_t test_close_session(sgx_enclave_id_t src_enclave_id,
-                                sgx_enclave_id_t dest_enclave_id)
-{
-    dh_session_t dest_session_info;
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-        dest_session_info = it->second;
-    }
-    else
-    {
-        return NULL;
-    }
-    //Core reference code function for closing a session
-    ke_status = close_session(src_enclave_id, dest_enclave_id);
-
-    //Erase the session information associated with the destination enclave id
-    g_src_session_info_map.erase(dest_enclave_id);
-    return ke_status;
-}
-
-//Function that is used to verify the trust of the other enclave
-//Each enclave can have its own way verifying the peer enclave identity
-extern "C" uint32_t verify_peer_enclave_trust(sgx_dh_session_enclave_identity_t* peer_enclave_identity)
-{
-    if(!peer_enclave_identity)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    if(peer_enclave_identity->isv_prod_id != 0 || !(peer_enclave_identity->attributes.flags & SGX_FLAGS_INITTED))
-        // || peer_enclave_identity->attributes.xfrm !=3)// || peer_enclave_identity->mr_signer != xx //TODO: To be hardcoded with values to check
-    {
-        return ENCLAVE_TRUST_ERROR;
-    }
-    else
-    {
-        return SUCCESS;
-    }
-}
-
-
-//Dispatch function that calls the approriate enclave function based on the function id
-//Each enclave can have its own way of dispatching the calls from other enclave
-extern "C" uint32_t enclave_to_enclave_call_dispatcher(char* decrypted_data,
-                                                       size_t decrypted_data_length,
-                                                       char** resp_buffer,
-                                                       size_t* resp_length)
-{
-    ms_in_msg_exchange_t *ms;
-    uint32_t (*fn1)(ms_in_msg_exchange_t *ms, size_t, char**, size_t*);
-    if(!decrypted_data || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    ms = (ms_in_msg_exchange_t *)decrypted_data;
-    if(ms->target_fn_id >= func_table.num_funcs)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    fn1 = (uint32_t (*)(ms_in_msg_exchange_t*, size_t, char**, size_t*))func_table.table[ms->target_fn_id];
-    return fn1(ms, decrypted_data_length, resp_buffer, resp_length);
-}
-
-//Operates on the input secret and generates the output secret
-uint32_t get_message_exchange_response(uint32_t inp_secret_data)
-{
-    uint32_t secret_response;
-
-    //User should use more complex encryption method to protect their secret, below is just a simple example
-    secret_response = inp_secret_data & 0x11111111;
-
-    return secret_response;
-
-}
-//Generates the response from the request message
-extern "C" uint32_t message_exchange_response_generator(char* decrypted_data,
-                                              char** resp_buffer,
-                                              size_t* resp_length)
-{
-    ms_in_msg_exchange_t *ms;
-    uint32_t inp_secret_data;
-    uint32_t out_secret_data;
-    if(!decrypted_data || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    ms = (ms_in_msg_exchange_t *)decrypted_data;
-
-    if(umarshal_message_exchange_request(&inp_secret_data,ms) != SUCCESS)
-        return ATTESTATION_ERROR;
-
-    out_secret_data = get_message_exchange_response(inp_secret_data);
-
-    if(marshal_message_exchange_response(resp_buffer, resp_length, out_secret_data) != SUCCESS)
-        return MALLOC_ERROR;
-
-    return SUCCESS;
-
-}
-
-
-static uint32_t e3_foo1(param_struct_t *p_struct_var)
-{
-    if(!p_struct_var)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    p_struct_var->var1++;
-    p_struct_var->var2++;
-
-    return(p_struct_var->var1 * p_struct_var->var2);
-}
-
-//Function which is executed on request from the source enclave
-static uint32_t e3_foo1_wrapper(ms_in_msg_exchange_t *ms,
-                    size_t param_lenth,
-                    char** resp_buffer,
-                    size_t* resp_length)
-{
-    UNUSED(param_lenth);
-    
-    uint32_t ret;
-    param_struct_t *p_struct_var;
-    if(!ms || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    p_struct_var = (param_struct_t*)malloc(sizeof(param_struct_t));
-    if(!p_struct_var)
-        return MALLOC_ERROR;
-
-    if(unmarshal_input_parameters_e3_foo1(p_struct_var, ms) != SUCCESS)
-    {
-        SAFE_FREE(p_struct_var);
-        return ATTESTATION_ERROR;
-    }
-
-    ret = e3_foo1(p_struct_var);
-
-    if(marshal_retval_and_output_parameters_e3_foo1(resp_buffer, resp_length, ret, p_struct_var) != SUCCESS)
-    {
-        SAFE_FREE(p_struct_var);
-        return MALLOC_ERROR;
-    }
-    SAFE_FREE(p_struct_var);
-    return SUCCESS;
-}

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Enclave3.edl

@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-enclave {
-    include "sgx_eid.h"
-    from "../LocalAttestationCode/LocalAttestationCode.edl" import *;
-    from "sgx_tstdc.edl" import *;
-    trusted{
-        public uint32_t test_create_session(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-        public uint32_t test_enclave_to_enclave_call(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-        public uint32_t test_message_exchange(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-        public uint32_t test_close_session(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-    };
-};

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Enclave3.lds

@@ -1,10 +0,0 @@
-Enclave3.so
-{
-    global:
-        g_global_data_sim;
-        g_global_data;
-        enclave_entry;
-        g_peak_heap_used;
-    local:
-        *;
-};

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Enclave3_private.pem

@@ -1,39 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIG4wIBAAKCAYEA0MvI9NpdP4GEqCvtlJQv00OybzTXzxBhPu/257VYt9cYw/ph
-BN1WRyxBBcrZs15xmcvlb3xNmFGWs4w5oUgrFBNgi6g+CUOCsj0cM8xw7P/y3K0H
-XaZUf+T3CXCp8NvlkZHzfdWAFA5lGGR9g6kmuk7SojE3h87Zm1KjPU/PvAe+BaMU
-trlRr4gPNVnu19Vho60xwuswPxfl/pBFUIk7qWEUR3l2hiqWMeLgf3Ays/WSnkXA
-uijwPt5g0hxsgIlyDrI3jKbf0zkFB56jvPwSykfU8aw4Gkbo5qSZxUAKnwH2L8Uf
-yM6inBaaYtM79icRwsu45Yt6X0GAt7CSb/1TKBrnm5exmK1sug3YSQ/YuK1FYawU
-vIaDD0YfzOndTNVBewA+Hr5xNPvqGJoRKHuGbyu2lI9jrKYpVxQWsmx38wnxF6kE
-zX6N4m7KZiLeLpDdBVQtLuOzIdIE4wT3t/ckeqElxO/1Ut9bj765GcTTrYwMKHRw
-ukWIH7ZtHtAjj0KzAgEDAoIBgQCLMoX4kZN/q63Fcp5jDXU3gnb0zeU0tZYp9U9F
-I5B6j2XX/ECt6OQvctYD3JEiPvZmh+5KUt5li7nNCCZrhXINYkBdGtQGLQHMKL13
-3aCd//c9yK+TxDhVQ09boHFLPUO2YUz+jlVitENlmFOtG28m3zcWy3paieZnjGzT
-iop9Wn6ubLh50OEfsAojkUnlOOvCc3aB8iAqD+6ptYOLBifGQLgvpk8EHGQhQer/
-oCHNTmG+2SsmxfV/Pus2vZ2rBkrUbZU0hwrnvKOIPhnt3Qwtmx9xsC67jF+MpWko
-UisJXC27FAGz2gpIGMhBp35HEppwG9hhCuMQdK2g62bvweyr1tC4qOVdQrKvhksN
-r6CMjS9eSXvmWdF7lU4oxStN0V56/LICSIsLbggUaxTPKhAVEgfTSqwEJoQuFA3Q
-4GmgTydPhcRH1L/lhbWJqZQm7V1Gt+5i5J6iATD32uNQQ2iZi5GsUhr+jZC+WlE5
-6lS813cRNiaK52HIk62bG7IXOksCgcEA+6RxZhQ5GaCPYZNsk7TqxqsKopXKoYAr
-2R4KWuexJTd+1kcNMk0ETX8OSgpY2cYL2uPFWmdutxPpLfpr8S2u92Da/Wxs70Ti
-QSb0426ybTmnS5L7nOnGOHiddXILhW175liAszTeoR7nQ6vpr9YjfcnrXiB8bKIm
-akft2DQoxrBPzEe9tA8gfkyDTsSG2j7kncSbvYRtkKcJOmmypotVU6uhRPSrSXCc
-J59uBQkg6Bk4CKA1mz8ctG07MluFY0/ZAoHBANRpZlfIFl39gFmuEER7lb80GySO
-J190LbqOca3dGOvAMsDgEAi6juJyX7ZNpbHFHj++LvmTtw9+kxhVDBcswS7304kt
-7J2EfnGdctEZtXif1wiq30YWAp1tjRpQENKtt9wssmgcwgK39rZNiEHmStHGv3l+
-5TnKPKeuFCDnsLvi5lQYoK2wTYvZtsjf+Rnt7H17q90IV54pMjTS8BkGskCkKf2A
-IYuaZkqX0T3cM6ovoYYDAU6rWL5rrYPLEwkbawKBwQCnwvZEDXtmawpBDPMNI0cv
-HLHBuTHBAB07aVw8mnYYz6nkL14hiK2I/17cBuXmhAfnQoORmknPYptz/Ef2HnSk
-6zyo8vNKLewrb03s9Hbze8TdDKe98S7QUGj49rJY86fu5asiIz8WFJotHUZ1OWz+
-hpzpav2dwW7xhUk6zXCEdYqIL9PNX2r+3azfLa88Ke2+gxJ+WEkLGgYm8SHEXOON
-HRYt+HIw9b1vv56uBhXwENAFwCO81L3Nnid2565CNTsCgcEAjZuZj9q5k/5VkR61
-gv0Of3gSGF7E6k1z0bRLyT4QnSrMgJVgBdG0lvbqeYkZIS4UKn7J+7fPX6m3ZY4I
-D3MrdKU3sMlIaQL+9mj3NhEjpb/ksHHqLrlXE55eEYq14cklPXMhmr3WrHqkeYkF
-gUQx4S8qUP9De9wob8liwJp10pdEOBBrHnWJB+Z52z/7Zp6dqP0dPgWPvsYheIyg
-EK8hgG1xU6rBB7xEMbqLfpLNHB/BBAIA3xzl1EfJAodiBhJHAoHAeTS2znDHYayI
-TvK86tBAPVORiBVTSdRUONdGF3dipo24hyeyrI5MtiOoMc3sKWXnSTkDQWa3WiPx
-qStBmmO/SbGTuz7T6+oOwGeMiYzYBe87Ayn8Y0KYYshFikieJbGusHjUlIGmCVPy
-UHrDMYGwFGUGBwW47gBsnZa+YPHtxWCPDe/U80et2Trx0RXJJQPmupAVMSiJWObI
-9k5gRU+xDqkHanyD1gkGGwhFTUNX94EJEOdQEWw3hxLnVtePoke/
------END RSA PRIVATE KEY-----

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Utility_E3.cpp

@@ -1,223 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "sgx_eid.h"
-#include "EnclaveMessageExchange.h"
-#include "error_codes.h"
-#include "Utility_E3.h"
-#include "stdlib.h"
-#include "string.h"
-
-uint32_t marshal_input_parameters_e1_foo1(uint32_t target_fn_id, uint32_t msg_type, external_param_struct_t *p_struct_var, size_t len_data, size_t len_ptr_data, char** marshalled_buff, size_t* marshalled_buff_len)
-{
-    ms_in_msg_exchange_t *ms;
-    size_t param_len, ms_len;
-    char *temp_buff;
-    int* addr;
-    char* struct_data;
-    if(!p_struct_var || !marshalled_buff_len)
-        return INVALID_PARAMETER_ERROR;    
-    struct_data = (char*)p_struct_var;
-    temp_buff = (char*)malloc(len_data + len_ptr_data);
-    if(!temp_buff)
-        return MALLOC_ERROR;
-    memcpy(temp_buff, struct_data, len_data);
-    addr = *(int **)(struct_data + len_data);
-    memcpy(temp_buff + len_data, addr, len_ptr_data); //can be optimized
-    param_len = len_data + len_ptr_data;
-    ms_len =  sizeof(ms_in_msg_exchange_t) + param_len;
-    ms = (ms_in_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-    {
-        SAFE_FREE(temp_buff);
-        return MALLOC_ERROR;
-    }
-    ms->msg_type = msg_type;
-    ms->target_fn_id = target_fn_id;
-    ms->inparam_buff_len = (uint32_t)param_len;
-    memcpy(&ms->inparam_buff, temp_buff, param_len);
-    *marshalled_buff = (char*)ms;
-    *marshalled_buff_len = ms_len;
-        
-    SAFE_FREE(temp_buff);
-    return SUCCESS;
-}
-
-uint32_t marshal_retval_and_output_parameters_e3_foo1(char** resp_buffer, size_t* resp_length, uint32_t retval, param_struct_t *p_struct_var)
-{
-    ms_out_msg_exchange_t *ms;
-    size_t ret_param_len, ms_len;
-    char *temp_buff;
-    size_t retval_len;
-    if(!resp_length || !p_struct_var)
-        return INVALID_PARAMETER_ERROR;    
-    retval_len = sizeof(retval);
-    ret_param_len = sizeof(retval) + sizeof(param_struct_t);
-    temp_buff = (char*)malloc(ret_param_len);
-    if(!temp_buff)
-        return MALLOC_ERROR;
-    memcpy(temp_buff, &retval, sizeof(retval)); 
-    memcpy(temp_buff + sizeof(retval), p_struct_var, sizeof(param_struct_t));
-    ms_len = sizeof(ms_out_msg_exchange_t) + ret_param_len;
-    ms = (ms_out_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-    {
-        SAFE_FREE(temp_buff);
-        return MALLOC_ERROR;
-    }
-    ms->retval_len = (uint32_t)retval_len;
-    ms->ret_outparam_buff_len = (uint32_t)ret_param_len;
-    memcpy(&ms->ret_outparam_buff, temp_buff, ret_param_len);
-    *resp_buffer = (char*)ms;
-    *resp_length = ms_len;
-    SAFE_FREE(temp_buff);
-    return SUCCESS;
-}
-
-uint32_t unmarshal_input_parameters_e3_foo1(param_struct_t *pstruct, ms_in_msg_exchange_t* ms)
-{
-    char* buff;
-    size_t len;
-    if(!pstruct || !ms)
-        return INVALID_PARAMETER_ERROR;    
-    buff = ms->inparam_buff;
-    len = ms->inparam_buff_len;
-
-    if(len != (sizeof(pstruct->var1) + sizeof(pstruct->var2)))
-        return ATTESTATION_ERROR;
-
-    memcpy(&pstruct->var1, buff, sizeof(pstruct->var1));
-    memcpy(&pstruct->var2, buff + sizeof(pstruct->var1), sizeof(pstruct->var2)); 
-
-    return SUCCESS;
-}
-
-
-uint32_t unmarshal_retval_and_output_parameters_e1_foo1(char* out_buff, external_param_struct_t *p_struct_var, char** retval)
-{
-    size_t retval_len;
-    ms_out_msg_exchange_t *ms;
-    if(!out_buff || !p_struct_var)
-        return INVALID_PARAMETER_ERROR;    
-    ms = (ms_out_msg_exchange_t *)out_buff;
-    retval_len = ms->retval_len;
-    *retval = (char*)malloc(retval_len);
-    if(!*retval)
-    {
-        return MALLOC_ERROR;
-    }
-    memcpy(*retval, ms->ret_outparam_buff, retval_len);
-    memcpy(&p_struct_var->var1, (ms->ret_outparam_buff) + retval_len, sizeof(p_struct_var->var1));
-    memcpy(&p_struct_var->var2, (ms->ret_outparam_buff) + retval_len + sizeof(p_struct_var->var1), sizeof(p_struct_var->var2));
-    memcpy(&p_struct_var->p_internal_struct->ivar1, (ms->ret_outparam_buff) + retval_len + sizeof(p_struct_var->var1)+ sizeof(p_struct_var->var2), sizeof(p_struct_var->p_internal_struct->ivar1));
-    memcpy(&p_struct_var->p_internal_struct->ivar2, (ms->ret_outparam_buff) + retval_len + sizeof(p_struct_var->var1)+ sizeof(p_struct_var->var2) + sizeof(p_struct_var->p_internal_struct->ivar1), sizeof(p_struct_var->p_internal_struct->ivar2));
-    return SUCCESS;
-}
-
-
-uint32_t marshal_message_exchange_request(uint32_t target_fn_id, uint32_t msg_type, uint32_t secret_data, char** marshalled_buff, size_t* marshalled_buff_len)
-{
-    ms_in_msg_exchange_t *ms;
-    size_t secret_data_len, ms_len;
-    if(!marshalled_buff_len)
-        return INVALID_PARAMETER_ERROR;            
-    secret_data_len = sizeof(secret_data);
-    ms_len = sizeof(ms_in_msg_exchange_t) + secret_data_len;
-    ms = (ms_in_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-        return MALLOC_ERROR;
-
-    ms->msg_type = msg_type;
-    ms->target_fn_id = target_fn_id;
-    ms->inparam_buff_len = (uint32_t)secret_data_len;
-    memcpy(&ms->inparam_buff, &secret_data, secret_data_len);
-
-    *marshalled_buff = (char*)ms;
-    *marshalled_buff_len = ms_len;
-    return SUCCESS;
-}
-
-uint32_t umarshal_message_exchange_request(uint32_t* inp_secret_data, ms_in_msg_exchange_t* ms)
-{
-    char* buff;
-    size_t len;
-    if(!inp_secret_data || !ms)
-        return INVALID_PARAMETER_ERROR;    
-    buff = ms->inparam_buff;
-    len = ms->inparam_buff_len;
-
-    if(len != sizeof(uint32_t))
-        return ATTESTATION_ERROR;
-
-    memcpy(inp_secret_data, buff, sizeof(uint32_t));
-
-    return SUCCESS;
-}
-
-uint32_t marshal_message_exchange_response(char** resp_buffer, size_t* resp_length, uint32_t secret_response)
-{
-    ms_out_msg_exchange_t *ms;
-    size_t secret_response_len, ms_len;
-    size_t retval_len, ret_param_len;
-    if(!resp_length)
-        return INVALID_PARAMETER_ERROR;    
-    secret_response_len = sizeof(secret_response);
-    retval_len = secret_response_len;
-    ret_param_len = secret_response_len;
-    ms_len = sizeof(ms_out_msg_exchange_t) + ret_param_len;
-    ms = (ms_out_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-        return MALLOC_ERROR;
-    ms->retval_len = (uint32_t)retval_len;
-    ms->ret_outparam_buff_len = (uint32_t)ret_param_len;
-    memcpy(&ms->ret_outparam_buff, &secret_response, secret_response_len);
-    *resp_buffer = (char*)ms;
-    *resp_length = ms_len;
-     return SUCCESS;
-}
-
-uint32_t umarshal_message_exchange_response(char* out_buff, char** secret_response)
-{
-    size_t retval_len;
-    ms_out_msg_exchange_t *ms;
-    if(!out_buff)
-        return INVALID_PARAMETER_ERROR;    
-    ms = (ms_out_msg_exchange_t *)out_buff;
-    retval_len = ms->retval_len;
-    *secret_response = (char*)malloc(retval_len);
-    if(!*secret_response)
-    {
-        return MALLOC_ERROR;
-    }
-    memcpy(*secret_response, ms->ret_outparam_buff, retval_len);
-    return SUCCESS;
-}
-

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Utility_E3.h

@@ -1,73 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef UTILITY_E3_H__
-#define UTILITY_E3_H__
-
-#include "stdint.h"
-
-
-typedef struct _internal_param_struct_t
-{
-    uint32_t ivar1;
-    uint32_t ivar2;
-}internal_param_struct_t;
-
-typedef struct _external_param_struct_t
-{
-    uint32_t var1;
-    uint32_t var2;
-    internal_param_struct_t *p_internal_struct;
-}external_param_struct_t;
-
-typedef struct _param_struct_t
-{
-    uint32_t var1;
-    uint32_t var2;
-}param_struct_t;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-uint32_t marshal_input_parameters_e1_foo1(uint32_t target_fn_id, uint32_t msg_type, external_param_struct_t *p_struct_var, size_t len_data, size_t len_ptr_data, char** marshalled_buff, size_t* marshalled_buff_len);
-uint32_t unmarshal_retval_and_output_parameters_e1_foo1(char* out_buff, external_param_struct_t *p_struct_var, char** retval);
-uint32_t unmarshal_input_parameters_e3_foo1(param_struct_t *pstruct, ms_in_msg_exchange_t* ms);
-uint32_t marshal_retval_and_output_parameters_e3_foo1(char** resp_buffer, size_t* resp_length, uint32_t retval, param_struct_t *p_struct_var);
-uint32_t marshal_message_exchange_request(uint32_t target_fn_id, uint32_t msg_type, uint32_t secret_data, char** marshalled_buff, size_t* marshalled_buff_len);
-uint32_t umarshal_message_exchange_request(uint32_t* inp_secret_data, ms_in_msg_exchange_t* ms);
-uint32_t marshal_message_exchange_response(char** resp_buffer, size_t* resp_length, uint32_t secret_response);
-uint32_t umarshal_message_exchange_response(char* out_buff, char** secret_response);
-
-#ifdef __cplusplus
- }
-#endif
-#endif

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Include/dh_session_protocol.h

@@ -1,68 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef _DH_SESSION_PROROCOL_H
-#define _DH_SESSION_PROROCOL_H
-
-#include "sgx_ecp_types.h"
-#include "sgx_key.h"
-#include "sgx_report.h"
-#include "sgx_attributes.h"
-
-#define NONCE_SIZE         16
-#define MAC_SIZE           16
-
-#define MSG_BUF_LEN        sizeof(ec_pub_t)*2
-#define MSG_HASH_SZ        32
-
-
-//Session information structure
-typedef struct _la_dh_session_t
-{
-    uint32_t  session_id; //Identifies the current session
-    uint32_t  status; //Indicates session is in progress, active or closed
-    union
-    {
-        struct
-        {
-			sgx_dh_session_t dh_session;
-        }in_progress;
-
-        struct
-        {
-            sgx_key_128bit_t AEK; //Session Key
-            uint32_t counter; //Used to store Message Sequence Number
-        }active;
-    };
-} dh_session_t;
-
-
-#endif

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/LocalAttestationCode/EnclaveMessageExchange.cpp

@@ -1,726 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-#include "sgx_trts.h"
-#include "sgx_utils.h"
-#include "EnclaveMessageExchange.h"
-#include "sgx_eid.h"
-#include "error_codes.h"
-#include "sgx_ecp_types.h"
-#include "sgx_thread.h"
-#include <map>
-#include "dh_session_protocol.h"
-#include "sgx_dh.h"
-#include "sgx_tcrypto.h"
-#include "LocalAttestationCode_t.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-uint32_t enclave_to_enclave_call_dispatcher(char* decrypted_data, size_t decrypted_data_length, char** resp_buffer, size_t* resp_length);
-uint32_t message_exchange_response_generator(char* decrypted_data, char** resp_buffer, size_t* resp_length);
-uint32_t verify_peer_enclave_trust(sgx_dh_session_enclave_identity_t* peer_enclave_identity);
-
-#ifdef __cplusplus
-}
-#endif
-
-#define MAX_SESSION_COUNT  16
-
-//number of open sessions
-uint32_t g_session_count = 0;
-
-ATTESTATION_STATUS generate_session_id(uint32_t *session_id);
-ATTESTATION_STATUS end_session(sgx_enclave_id_t src_enclave_id);
-
-//Array of open session ids
-session_id_tracker_t *g_session_id_tracker[MAX_SESSION_COUNT];
-
-//Map between the source enclave id and the session information associated with that particular session
-std::map<sgx_enclave_id_t, dh_session_t>g_dest_session_info_map;
-
-//Create a session with the destination enclave
-ATTESTATION_STATUS create_session(sgx_enclave_id_t src_enclave_id,
-                         sgx_enclave_id_t dest_enclave_id,
-                         dh_session_t *session_info)
-{
-    ocall_print_string("[ECALL] create_session()\n");
-    sgx_dh_msg1_t dh_msg1;            //Diffie-Hellman Message 1
-    sgx_key_128bit_t dh_aek;        // Session Key
-    sgx_dh_msg2_t dh_msg2;            //Diffie-Hellman Message 2
-    sgx_dh_msg3_t dh_msg3;            //Diffie-Hellman Message 3
-    uint32_t session_id;
-    uint32_t retstatus;
-    sgx_status_t status = SGX_SUCCESS;
-    sgx_dh_session_t sgx_dh_session;
-    sgx_dh_session_enclave_identity_t responder_identity;
-
-    if(!session_info)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-
-    memset(&dh_aek,0, sizeof(sgx_key_128bit_t));
-    memset(&dh_msg1, 0, sizeof(sgx_dh_msg1_t));
-    memset(&dh_msg2, 0, sizeof(sgx_dh_msg2_t));
-    memset(&dh_msg3, 0, sizeof(sgx_dh_msg3_t));
-    memset(session_info, 0, sizeof(dh_session_t));
-
-    //Intialize the session as a session initiator
-    ocall_print_string("[ECALL] Initializing the session as session initiator...\n");
-    status = sgx_dh_init_session(SGX_DH_SESSION_INITIATOR, &sgx_dh_session);
-    if(SGX_SUCCESS != status)
-    {
-            return status;
-    }
-
-    //Ocall to request for a session with the destination enclave and obtain session id and Message 1 if successful
-    status = session_request_ocall(&retstatus, src_enclave_id, dest_enclave_id, &dh_msg1, &session_id);
-    if (status == SGX_SUCCESS)
-    {
-        if ((ATTESTATION_STATUS)retstatus != SUCCESS)
-            return ((ATTESTATION_STATUS)retstatus);
-    }
-    else
-    {
-        return ATTESTATION_SE_ERROR;
-    }
-
-    ocall_print_string("[ECALL] Processing message1 obtained from Enclave2 and generate message2\n");
-    status = sgx_dh_initiator_proc_msg1(&dh_msg1, &dh_msg2, &sgx_dh_session);
-    if(SGX_SUCCESS != status)
-    {
-         return status;
-    }
-
-    //Send Message 2 to Destination Enclave and get Message 3 in return
-    status = exchange_report_ocall(&retstatus, src_enclave_id, dest_enclave_id, &dh_msg2, &dh_msg3, session_id);
-    if (status == SGX_SUCCESS)
-    {
-        if ((ATTESTATION_STATUS)retstatus != SUCCESS)
-            return ((ATTESTATION_STATUS)retstatus);
-    }
-    else
-    {
-        return ATTESTATION_SE_ERROR;
-    }
-
-    //Process Message 3 obtained from the destination enclave
-    ocall_print_string("[ECALL] Processing message3 obtained from Enclave3\n");
-    status = sgx_dh_initiator_proc_msg3(&dh_msg3, &sgx_dh_session, &dh_aek, &responder_identity);
-    if(SGX_SUCCESS != status)
-    {
-        return status;
-    }
-
-    // Verify the identity of the destination enclave
-    ocall_print_string("[ECALL] Verifying Encalve2(Responder)'s trust\n");
-    if(verify_peer_enclave_trust(&responder_identity) != SUCCESS)
-    {
-        return INVALID_SESSION;
-    }
-
-    memcpy(session_info->active.AEK, &dh_aek, sizeof(sgx_key_128bit_t));
-    session_info->session_id = session_id;
-    session_info->active.counter = 0;
-    session_info->status = ACTIVE;
-    memset(&dh_aek,0, sizeof(sgx_key_128bit_t));
-    return status;
-}
-
-//Handle the request from Source Enclave for a session
-ATTESTATION_STATUS session_request(sgx_enclave_id_t src_enclave_id,
-                          sgx_dh_msg1_t *dh_msg1,
-                          uint32_t *session_id )
-{
-    dh_session_t session_info;
-    sgx_dh_session_t sgx_dh_session;
-    sgx_status_t status = SGX_SUCCESS;
-
-    if(!session_id || !dh_msg1)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    //Intialize the session as a session responder
-    status = sgx_dh_init_session(SGX_DH_SESSION_RESPONDER, &sgx_dh_session);
-    if(SGX_SUCCESS != status)
-    {
-        return status;
-    }
-
-    //get a new SessionID
-    if ((status = (sgx_status_t)generate_session_id(session_id)) != SUCCESS)
-        return status; //no more sessions available
-
-    //Allocate memory for the session id tracker
-    g_session_id_tracker[*session_id] = (session_id_tracker_t *)malloc(sizeof(session_id_tracker_t));
-    if(!g_session_id_tracker[*session_id])
-    {
-        return MALLOC_ERROR;
-    }
-
-    memset(g_session_id_tracker[*session_id], 0, sizeof(session_id_tracker_t));
-    g_session_id_tracker[*session_id]->session_id = *session_id;
-    session_info.status = IN_PROGRESS;
-
-    //Generate Message1 that will be returned to Source Enclave
-    status = sgx_dh_responder_gen_msg1((sgx_dh_msg1_t*)dh_msg1, &sgx_dh_session);
-    if(SGX_SUCCESS != status)
-    {
-        SAFE_FREE(g_session_id_tracker[*session_id]);
-        return status;
-    }
-    memcpy(&session_info.in_progress.dh_session, &sgx_dh_session, sizeof(sgx_dh_session_t));
-    //Store the session information under the correspoding source enlave id key
-    g_dest_session_info_map.insert(std::pair<sgx_enclave_id_t, dh_session_t>(src_enclave_id, session_info));
-
-    return status;
-}
-
-//Verify Message 2, generate Message3 and exchange Message 3 with Source Enclave
-ATTESTATION_STATUS exchange_report(sgx_enclave_id_t src_enclave_id,
-                          sgx_dh_msg2_t *dh_msg2,
-                          sgx_dh_msg3_t *dh_msg3,
-                          uint32_t session_id)
-{
-
-    sgx_key_128bit_t dh_aek;   // Session key
-    dh_session_t *session_info;
-    ATTESTATION_STATUS status = SUCCESS;
-    sgx_dh_session_t sgx_dh_session;
-    sgx_dh_session_enclave_identity_t initiator_identity;
-
-    if(!dh_msg2 || !dh_msg3)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-
-    memset(&dh_aek,0, sizeof(sgx_key_128bit_t));
-    do
-    {
-        //Retreive the session information for the corresponding source enclave id
-        std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_dest_session_info_map.find(src_enclave_id);
-        if(it != g_dest_session_info_map.end())
-        {
-            session_info = &it->second;
-        }
-        else
-        {
-            status = INVALID_SESSION;
-            break;
-        }
-
-        if(session_info->status != IN_PROGRESS)
-        {
-            status = INVALID_SESSION;
-            break;
-        }
-
-        memcpy(&sgx_dh_session, &session_info->in_progress.dh_session, sizeof(sgx_dh_session_t));
-
-        dh_msg3->msg3_body.additional_prop_length = 0;
-        //Process message 2 from source enclave and obtain message 3
-        sgx_status_t se_ret = sgx_dh_responder_proc_msg2(dh_msg2,
-                                                       dh_msg3,
-                                                       &sgx_dh_session,
-                                                       &dh_aek,
-                                                       &initiator_identity);
-        if(SGX_SUCCESS != se_ret)
-        {
-            status = se_ret;
-            break;
-        }
-
-        //Verify source enclave's trust
-          if(verify_peer_enclave_trust(&initiator_identity) != SUCCESS)
-        {
-            return INVALID_SESSION;
-        }
-
-        //save the session ID, status and initialize the session nonce
-        session_info->session_id = session_id;
-        session_info->status = ACTIVE;
-        session_info->active.counter = 0;
-        memcpy(session_info->active.AEK, &dh_aek, sizeof(sgx_key_128bit_t));
-        memset(&dh_aek,0, sizeof(sgx_key_128bit_t));
-        g_session_count++;
-    }while(0);
-
-    if(status != SUCCESS)
-    {
-        end_session(src_enclave_id);
-    }
-
-    return status;
-}
-
-//Request for the response size, send the request message to the destination enclave and receive the response message back
-ATTESTATION_STATUS send_request_receive_response(sgx_enclave_id_t src_enclave_id,
-                                  sgx_enclave_id_t dest_enclave_id,
-                                  dh_session_t *session_info,
-                                  char *inp_buff,
-                                  size_t inp_buff_len,
-                                  size_t max_out_buff_size,
-                                  char **out_buff,
-                                  size_t* out_buff_len)
-{
-    const uint8_t* plaintext;
-    uint32_t plaintext_length;
-    sgx_status_t status;
-    uint32_t retstatus;
-    secure_message_t* req_message;
-    secure_message_t* resp_message;
-    uint8_t *decrypted_data;
-    uint32_t decrypted_data_length;
-    uint32_t plain_text_offset;
-    uint8_t l_tag[TAG_SIZE];
-    size_t max_resp_message_length;
-    plaintext = (const uint8_t*)(" ");
-    plaintext_length = 0;
-
-    if(!session_info || !inp_buff)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    //Check if the nonce for the session has not exceeded 2^32-2 if so end session and start a new session
-    if(session_info->active.counter == ((uint32_t) - 2))
-    {
-        close_session(src_enclave_id, dest_enclave_id);
-        create_session(src_enclave_id, dest_enclave_id, session_info);
-    }
-
-    //Allocate memory for the AES-GCM request message
-    req_message = (secure_message_t*)malloc(sizeof(secure_message_t)+ inp_buff_len);
-    if(!req_message)
-    {
-        return MALLOC_ERROR;
-    }
-
-    memset(req_message,0,sizeof(secure_message_t)+ inp_buff_len);
-    const uint32_t data2encrypt_length = (uint32_t)inp_buff_len;
-    //Set the payload size to data to encrypt length
-    req_message->message_aes_gcm_data.payload_size = data2encrypt_length;
-
-    //Use the session nonce as the payload IV
-    memcpy(req_message->message_aes_gcm_data.reserved,&session_info->active.counter,sizeof(session_info->active.counter));
-
-    //Set the session ID of the message to the current session id
-    req_message->session_id = session_info->session_id;
-
-    //Prepare the request message with the encrypted payload
-    status = sgx_rijndael128GCM_encrypt(&session_info->active.AEK, (uint8_t*)inp_buff, data2encrypt_length,
-                reinterpret_cast<uint8_t *>(&(req_message->message_aes_gcm_data.payload)),
-                reinterpret_cast<uint8_t *>(&(req_message->message_aes_gcm_data.reserved)),
-                sizeof(req_message->message_aes_gcm_data.reserved), plaintext, plaintext_length,
-                &(req_message->message_aes_gcm_data.payload_tag));
-
-    if(SGX_SUCCESS != status)
-    {
-        SAFE_FREE(req_message);
-        return status;
-    }
-
-    //Allocate memory for the response payload to be copied
-    *out_buff = (char*)malloc(max_out_buff_size);
-    if(!*out_buff)
-    {
-        SAFE_FREE(req_message);
-        return MALLOC_ERROR;
-    }
-
-    memset(*out_buff, 0, max_out_buff_size);
-
-    //Allocate memory for the response message
-    resp_message = (secure_message_t*)malloc(sizeof(secure_message_t)+ max_out_buff_size);
-    if(!resp_message)
-    {
-        SAFE_FREE(req_message);
-        return MALLOC_ERROR;
-    }
-
-    memset(resp_message, 0, sizeof(secure_message_t)+ max_out_buff_size);
-
-    //Ocall to send the request to the Destination Enclave and get the response message back
-    status = send_request_ocall(&retstatus, src_enclave_id, dest_enclave_id, req_message,
-                                (sizeof(secure_message_t)+ inp_buff_len), max_out_buff_size,
-                                resp_message, (sizeof(secure_message_t)+ max_out_buff_size));
-    if (status == SGX_SUCCESS)
-    {
-        if ((ATTESTATION_STATUS)retstatus != SUCCESS)
-        {
-            SAFE_FREE(req_message);
-            SAFE_FREE(resp_message);
-            return ((ATTESTATION_STATUS)retstatus);
-        }
-    }
-    else
-    {
-        SAFE_FREE(req_message);
-        SAFE_FREE(resp_message);
-        return ATTESTATION_SE_ERROR;
-    }
-
-    max_resp_message_length = sizeof(secure_message_t)+ max_out_buff_size;
-
-    if(sizeof(resp_message) > max_resp_message_length)
-    {
-        SAFE_FREE(req_message);
-        SAFE_FREE(resp_message);
-        return INVALID_PARAMETER_ERROR;
-    }
-
-    //Code to process the response message from the Destination Enclave
-
-    decrypted_data_length = resp_message->message_aes_gcm_data.payload_size;
-    plain_text_offset = decrypted_data_length;
-    decrypted_data = (uint8_t*)malloc(decrypted_data_length);
-    if(!decrypted_data)
-    {
-        SAFE_FREE(req_message);
-        SAFE_FREE(resp_message);
-        return MALLOC_ERROR;
-    }
-    memset(&l_tag, 0, 16);
-
-    memset(decrypted_data, 0, decrypted_data_length);
-
-    //Decrypt the response message payload
-    status = sgx_rijndael128GCM_decrypt(&session_info->active.AEK, resp_message->message_aes_gcm_data.payload,
-                decrypted_data_length, decrypted_data,
-                reinterpret_cast<uint8_t *>(&(resp_message->message_aes_gcm_data.reserved)),
-                sizeof(resp_message->message_aes_gcm_data.reserved), &(resp_message->message_aes_gcm_data.payload[plain_text_offset]), plaintext_length,
-                &resp_message->message_aes_gcm_data.payload_tag);
-
-    if(SGX_SUCCESS != status)
-    {
-        SAFE_FREE(req_message);
-        SAFE_FREE(decrypted_data);
-        SAFE_FREE(resp_message);
-        return status;
-    }
-
-    // Verify if the nonce obtained in the response is equal to the session nonce + 1 (Prevents replay attacks)
-    if(*(resp_message->message_aes_gcm_data.reserved) != (session_info->active.counter + 1 ))
-    {
-        SAFE_FREE(req_message);
-        SAFE_FREE(resp_message);
-        SAFE_FREE(decrypted_data);
-        return INVALID_PARAMETER_ERROR;
-    }
-
-        //Update the value of the session nonce in the source enclave
-    session_info->active.counter = session_info->active.counter + 1;
-
-    memcpy(out_buff_len, &decrypted_data_length, sizeof(decrypted_data_length));
-    memcpy(*out_buff, decrypted_data, decrypted_data_length);
-
-    SAFE_FREE(decrypted_data);
-    SAFE_FREE(req_message);
-    SAFE_FREE(resp_message);
-    return SUCCESS;
-
-
-}
-
-//Process the request from the Source enclave and send the response message back to the Source enclave
-ATTESTATION_STATUS generate_response(sgx_enclave_id_t src_enclave_id,
-                                     secure_message_t* req_message,
-                                     size_t req_message_size,
-                                     size_t max_payload_size,
-                                     secure_message_t* resp_message,
-                                     size_t resp_message_size)
-{
-    const uint8_t* plaintext;
-    uint32_t plaintext_length;
-    uint8_t *decrypted_data;
-    uint32_t decrypted_data_length;
-    uint32_t plain_text_offset;
-    ms_in_msg_exchange_t * ms;
-    size_t resp_data_length;
-    size_t resp_message_calc_size;
-    char* resp_data;
-    uint8_t l_tag[TAG_SIZE];
-    size_t header_size, expected_payload_size;
-    dh_session_t *session_info;
-    secure_message_t* temp_resp_message;
-    uint32_t ret;
-    sgx_status_t status;
-
-    plaintext = (const uint8_t*)(" ");
-    plaintext_length = 0;
-
-    if(!req_message || !resp_message)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-
-    //Get the session information from the map corresponding to the source enclave id
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_dest_session_info_map.find(src_enclave_id);
-    if(it != g_dest_session_info_map.end())
-    {
-        session_info = &it->second;
-    }
-    else
-    {
-        return INVALID_SESSION;
-    }
-
-    if(session_info->status != ACTIVE)
-    {
-        return INVALID_SESSION;
-    }
-
-    //Set the decrypted data length to the payload size obtained from the message
-    decrypted_data_length = req_message->message_aes_gcm_data.payload_size;
-
-    header_size = sizeof(secure_message_t);
-    expected_payload_size = req_message_size - header_size;
-
-    //Verify the size of the payload
-    if(expected_payload_size != decrypted_data_length)
-        return INVALID_PARAMETER_ERROR;
-
-    memset(&l_tag, 0, 16);
-    plain_text_offset = decrypted_data_length;
-    decrypted_data = (uint8_t*)malloc(decrypted_data_length);
-    if(!decrypted_data)
-    {
-            return MALLOC_ERROR;
-    }
-
-    memset(decrypted_data, 0, decrypted_data_length);
-
-    //Decrypt the request message payload from source enclave
-    status = sgx_rijndael128GCM_decrypt(&session_info->active.AEK, req_message->message_aes_gcm_data.payload,
-                decrypted_data_length, decrypted_data,
-                reinterpret_cast<uint8_t *>(&(req_message->message_aes_gcm_data.reserved)),
-                sizeof(req_message->message_aes_gcm_data.reserved), &(req_message->message_aes_gcm_data.payload[plain_text_offset]), plaintext_length,
-                &req_message->message_aes_gcm_data.payload_tag);
-
-    if(SGX_SUCCESS != status)
-    {
-        SAFE_FREE(decrypted_data);
-        return status;
-    }
-
-    //Casting the decrypted data to the marshaling structure type to obtain type of request (generic message exchange/enclave to enclave call)
-    ms = (ms_in_msg_exchange_t *)decrypted_data;
-
-
-    // Verify if the nonce obtained in the request is equal to the session nonce
-    if((uint32_t)*(req_message->message_aes_gcm_data.reserved) != session_info->active.counter || *(req_message->message_aes_gcm_data.reserved) > ((2^32)-2))
-    {
-        SAFE_FREE(decrypted_data);
-        return INVALID_PARAMETER_ERROR;
-    }
-
-    if(ms->msg_type == MESSAGE_EXCHANGE)
-    {
-        //Call the generic secret response generator for message exchange
-        ret = message_exchange_response_generator((char*)decrypted_data, &resp_data, &resp_data_length);
-        if(ret !=0)
-        {
-            SAFE_FREE(decrypted_data);
-            SAFE_FREE(resp_data);
-            return INVALID_SESSION;
-        }
-    }
-    else if(ms->msg_type == ENCLAVE_TO_ENCLAVE_CALL)
-    {
-        //Call the destination enclave's dispatcher to call the appropriate function in the destination enclave
-        ret = enclave_to_enclave_call_dispatcher((char*)decrypted_data, decrypted_data_length, &resp_data, &resp_data_length);
-        if(ret !=0)
-        {
-            SAFE_FREE(decrypted_data);
-            SAFE_FREE(resp_data);
-            return INVALID_SESSION;
-        }
-    }
-    else
-    {
-        SAFE_FREE(decrypted_data);
-        return INVALID_REQUEST_TYPE_ERROR;
-    }
-
-
-    if(resp_data_length > max_payload_size)
-    {
-        SAFE_FREE(resp_data);
-        SAFE_FREE(decrypted_data);
-        return OUT_BUFFER_LENGTH_ERROR;
-    }
-
-    resp_message_calc_size = sizeof(secure_message_t)+ resp_data_length;
-
-    if(resp_message_calc_size > resp_message_size)
-    {
-        SAFE_FREE(resp_data);
-        SAFE_FREE(decrypted_data);
-        return OUT_BUFFER_LENGTH_ERROR;
-    }
-
-    //Code to build the response back to the Source Enclave
-    temp_resp_message = (secure_message_t*)malloc(resp_message_calc_size);
-    if(!temp_resp_message)
-    {
-            SAFE_FREE(resp_data);
-            SAFE_FREE(decrypted_data);
-            return MALLOC_ERROR;
-    }
-
-    memset(temp_resp_message,0,sizeof(secure_message_t)+ resp_data_length);
-    const uint32_t data2encrypt_length = (uint32_t)resp_data_length;
-    temp_resp_message->session_id = session_info->session_id;
-    temp_resp_message->message_aes_gcm_data.payload_size = data2encrypt_length;
-
-    //Increment the Session Nonce (Replay Protection)
-    session_info->active.counter = session_info->active.counter + 1;
-
-    //Set the response nonce as the session nonce
-    memcpy(&temp_resp_message->message_aes_gcm_data.reserved,&session_info->active.counter,sizeof(session_info->active.counter));
-
-    //Prepare the response message with the encrypted payload
-    status = sgx_rijndael128GCM_encrypt(&session_info->active.AEK, (uint8_t*)resp_data, data2encrypt_length,
-                reinterpret_cast<uint8_t *>(&(temp_resp_message->message_aes_gcm_data.payload)),
-                reinterpret_cast<uint8_t *>(&(temp_resp_message->message_aes_gcm_data.reserved)),
-                sizeof(temp_resp_message->message_aes_gcm_data.reserved), plaintext, plaintext_length,
-                &(temp_resp_message->message_aes_gcm_data.payload_tag));
-
-    if(SGX_SUCCESS != status)
-    {
-        SAFE_FREE(resp_data);
-        SAFE_FREE(decrypted_data);
-        SAFE_FREE(temp_resp_message);
-        return status;
-    }
-
-    memset(resp_message, 0, sizeof(secure_message_t)+ resp_data_length);
-    memcpy(resp_message, temp_resp_message, sizeof(secure_message_t)+ resp_data_length);
-
-    SAFE_FREE(decrypted_data);
-    SAFE_FREE(resp_data);
-    SAFE_FREE(temp_resp_message);
-
-    return SUCCESS;
-}
-
-//Close a current session
-ATTESTATION_STATUS close_session(sgx_enclave_id_t src_enclave_id,
-                        sgx_enclave_id_t dest_enclave_id)
-{
-    sgx_status_t status;
-
-    uint32_t retstatus;
-
-    //Ocall to ask the destination enclave to end the session
-    status = end_session_ocall(&retstatus, src_enclave_id, dest_enclave_id);
-    if (status == SGX_SUCCESS)
-    {
-        if ((ATTESTATION_STATUS)retstatus != SUCCESS)
-            return ((ATTESTATION_STATUS)retstatus);
-    }
-    else
-    {
-        return ATTESTATION_SE_ERROR;
-    }
-    return SUCCESS;
-}
-
-//Respond to the request from the Source Enclave to close the session
-ATTESTATION_STATUS end_session(sgx_enclave_id_t src_enclave_id)
-{
-    ATTESTATION_STATUS status = SUCCESS;
-    int i;
-    dh_session_t session_info;
-    uint32_t session_id;
-
-    //Get the session information from the map corresponding to the source enclave id
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_dest_session_info_map.find(src_enclave_id);
-    if(it != g_dest_session_info_map.end())
-    {
-        session_info = it->second;
-    }
-    else
-    {
-        return INVALID_SESSION;
-    }
-
-    session_id = session_info.session_id;
-    //Erase the session information for the current session
-    g_dest_session_info_map.erase(src_enclave_id);
-
-    //Update the session id tracker
-    if (g_session_count > 0)
-    {
-        //check if session exists
-        for (i=1; i <= MAX_SESSION_COUNT; i++)
-        {
-            if(g_session_id_tracker[i-1] != NULL && g_session_id_tracker[i-1]->session_id == session_id)
-            {
-                memset(g_session_id_tracker[i-1], 0, sizeof(session_id_tracker_t));
-                SAFE_FREE(g_session_id_tracker[i-1]);
-                g_session_count--;
-                break;
-            }
-        }
-    }
-
-    return status;
-
-}
-
-
-//Returns a new sessionID for the source destination session
-ATTESTATION_STATUS generate_session_id(uint32_t *session_id)
-{
-    ATTESTATION_STATUS status = SUCCESS;
-
-    if(!session_id)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    //if the session structure is untintialized, set that as the next session ID
-    for (int i = 0; i < MAX_SESSION_COUNT; i++)
-    {
-        if (g_session_id_tracker[i] == NULL)
-        {
-            *session_id = i;
-            return status;
-        }
-    }
-
-    status = NO_AVAILABLE_SESSION_ERROR;
-
-    return status;
-
-}

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/LocalAttestationCode/EnclaveMessageExchange.h

@@ -1,54 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-#include "datatypes.h"
-#include "sgx_eid.h"
-#include "sgx_trts.h"
-#include <map>
-#include "dh_session_protocol.h"
-
-#ifndef LOCALATTESTATION_H_
-#define LOCALATTESTATION_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-uint32_t SGXAPI create_session(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id, dh_session_t *p_session_info);
-uint32_t SGXAPI send_request_receive_response(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id, dh_session_t *p_session_info, char *inp_buff, size_t inp_buff_len, size_t max_out_buff_size, char **out_buff, size_t* out_buff_len);
-uint32_t SGXAPI close_session(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/LocalAttestationCode/LocalAttestationCode.edl

@@ -1,50 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-enclave  {
-    include "sgx_eid.h"
-    include "datatypes.h"
-    include "../Include/dh_session_protocol.h"
-    trusted{
-        public uint32_t session_request(sgx_enclave_id_t src_enclave_id, [out] sgx_dh_msg1_t *dh_msg1, [out] uint32_t *session_id);
-        public uint32_t exchange_report(sgx_enclave_id_t src_enclave_id, [in] sgx_dh_msg2_t *dh_msg2, [out] sgx_dh_msg3_t *dh_msg3, uint32_t session_id);
-        public uint32_t generate_response(sgx_enclave_id_t src_enclave_id, [in, size = req_message_size] secure_message_t* req_message, size_t req_message_size, size_t max_payload_size, [out, size=resp_message_size] secure_message_t* resp_message, size_t resp_message_size );
-        public uint32_t end_session(sgx_enclave_id_t src_enclave_id);        
-    };
-
-    untrusted{
-        uint32_t session_request_ocall(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id, [out] sgx_dh_msg1_t *dh_msg1,[out] uint32_t *session_id);
-        uint32_t exchange_report_ocall(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id, [in] sgx_dh_msg2_t *dh_msg2, [out] sgx_dh_msg3_t *dh_msg3, uint32_t session_id);
-        uint32_t send_request_ocall(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id, [in, size = req_message_size] secure_message_t* req_message, size_t req_message_size, size_t max_payload_size, [out, size=resp_message_size] secure_message_t* resp_message, size_t resp_message_size);
-        uint32_t end_session_ocall(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-        void ocall_print_string([in, string] const char *str);
-    };
-};

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/LocalAttestationCode/datatypes.h

@@ -1,105 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "sgx_report.h"
-#include "sgx_eid.h"
-#include "sgx_ecp_types.h"
-#include "sgx_dh.h"
-#include "sgx_tseal.h"
-
-#ifndef DATATYPES_H_
-#define DATATYPES_H_
-
-#define DH_KEY_SIZE        20
-#define NONCE_SIZE         16
-#define MAC_SIZE           16
-#define MAC_KEY_SIZE       16
-#define PADDING_SIZE       16
-
-#define TAG_SIZE        16
-#define IV_SIZE            12
-
-#define DERIVE_MAC_KEY      0x0
-#define DERIVE_SESSION_KEY  0x1
-#define DERIVE_VK1_KEY      0x3
-#define DERIVE_VK2_KEY      0x4
-
-#define CLOSED 0x0
-#define IN_PROGRESS 0x1
-#define ACTIVE 0x2
-
-#define MESSAGE_EXCHANGE 0x0
-#define ENCLAVE_TO_ENCLAVE_CALL 0x1
-
-#define INVALID_ARGUMENT                   -2   ///< Invalid function argument
-#define LOGIC_ERROR                        -3   ///< Functional logic error
-#define FILE_NOT_FOUND                     -4   ///< File not found
-
-#define SAFE_FREE(ptr)     {if (NULL != (ptr)) {free(ptr); (ptr)=NULL;}}
-
-#define VMC_ATTRIBUTE_MASK  0xFFFFFFFFFFFFFFCB
-
-typedef uint8_t dh_nonce[NONCE_SIZE];
-typedef uint8_t cmac_128[MAC_SIZE];
-
-#pragma pack(push, 1)
-
-//Format of the AES-GCM message being exchanged between the source and the destination enclaves
-typedef struct _secure_message_t
-{
-    uint32_t session_id; //Session ID identifyting the session to which the message belongs
-    sgx_aes_gcm_data_t message_aes_gcm_data;    
-}secure_message_t;
-
-//Format of the input function parameter structure
-typedef struct _ms_in_msg_exchange_t {
-    uint32_t msg_type; //Type of Call E2E or general message exchange
-    uint32_t target_fn_id; //Function Id to be called in Destination. Is valid only when msg_type=ENCLAVE_TO_ENCLAVE_CALL
-    uint32_t inparam_buff_len; //Length of the serialized input parameters
-    char inparam_buff[]; //Serialized input parameters
-} ms_in_msg_exchange_t;
-
-//Format of the return value and output function parameter structure
-typedef struct _ms_out_msg_exchange_t {
-    uint32_t retval_len; //Length of the return value
-    uint32_t ret_outparam_buff_len; //Length of the serialized return value and output parameters
-    char ret_outparam_buff[]; //Serialized return value and output parameters
-} ms_out_msg_exchange_t;
-
-//Session Tracker to generate session ids
-typedef struct _session_id_tracker_t
-{
-    uint32_t          session_id;
-}session_id_tracker_t;
-
-#pragma pack(pop)
-
-#endif

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/LocalAttestationCode/error_codes.h

@@ -1,53 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef ERROR_CODES_H_
-#define ERROR_CODES_H_
-
-typedef uint32_t ATTESTATION_STATUS;
-
-#define SUCCESS                          0x00
-#define INVALID_PARAMETER                0xE1
-#define VALID_SESSION                    0xE2
-#define INVALID_SESSION                  0xE3
-#define ATTESTATION_ERROR                0xE4
-#define ATTESTATION_SE_ERROR             0xE5
-#define IPP_ERROR                        0xE6
-#define NO_AVAILABLE_SESSION_ERROR       0xE7
-#define MALLOC_ERROR                     0xE8
-#define ERROR_TAG_MISMATCH               0xE9
-#define OUT_BUFFER_LENGTH_ERROR          0xEA
-#define INVALID_REQUEST_TYPE_ERROR       0xEB
-#define INVALID_PARAMETER_ERROR          0xEC
-#define ENCLAVE_TRUST_ERROR              0xED
-#define ENCRYPT_DECRYPT_ERROR            0xEE
-#define DUPLICATE_SESSION                0xEF
-#endif

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Makefile

@@ -1,346 +0,0 @@
-#
-# Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-#   * Redistributions of source code must retain the above copyright
-#     notice, this list of conditions and the following disclaimer.
-#   * Redistributions in binary form must reproduce the above copyright
-#     notice, this list of conditions and the following disclaimer in
-#     the documentation and/or other materials provided with the
-#     distribution.
-#   * Neither the name of Intel Corporation nor the names of its
-#     contributors may be used to endorse or promote products derived
-#     from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#
-#
-
-######## SGX SDK Settings ########
-
-SGX_SDK ?= /opt/intel/sgxsdk
-SGX_MODE ?= HW
-SGX_ARCH ?= x64
-SGX_DEBUG ?= 1
-
-ifeq ($(shell getconf LONG_BIT), 32)
-	SGX_ARCH := x86
-else ifeq ($(findstring -m32, $(CXXFLAGS)), -m32)
-	SGX_ARCH := x86
-endif
-
-ifeq ($(SGX_ARCH), x86)
-	SGX_COMMON_CFLAGS := -m32
-	SGX_LIBRARY_PATH := $(SGX_SDK)/lib
-	SGX_ENCLAVE_SIGNER := $(SGX_SDK)/bin/x86/sgx_sign
-	SGX_EDGER8R := $(SGX_SDK)/bin/x86/sgx_edger8r
-else
-	SGX_COMMON_CFLAGS := -m64
-	SGX_LIBRARY_PATH := $(SGX_SDK)/lib64
-	SGX_ENCLAVE_SIGNER := $(SGX_SDK)/bin/x64/sgx_sign
-	SGX_EDGER8R := $(SGX_SDK)/bin/x64/sgx_edger8r
-endif
-
-ifeq ($(SGX_DEBUG), 1)
-ifeq ($(SGX_PRERELEASE), 1)
-$(error Cannot set SGX_DEBUG and SGX_PRERELEASE at the same time!!)
-endif
-endif
-
-ifeq ($(SGX_DEBUG), 1)
-	SGX_COMMON_CFLAGS += -O0 -g
-else
-	SGX_COMMON_CFLAGS += -O2
-endif
-
-######## Library Settings ########
-
-Trust_Lib_Name := libLocalAttestation_Trusted.a
-TrustLib_Cpp_Files := $(wildcard LocalAttestationCode/*.cpp)
-TrustLib_Cpp_Objects := $(TrustLib_Cpp_Files:.cpp=.o)
-TrustLib_Include_Paths := -I$(SGX_SDK)/include -I$(SGX_SDK)/include/tlibc -I$(SGX_SDK)/include/libcxx -I$(SGX_SDK)/include/epid -I./Include
-TrustLib_Compile_Flags := $(SGX_COMMON_CFLAGS) -nostdinc -fvisibility=hidden -fpie -fstack-protector  $(TrustLib_Include_Paths)
-TrustLib_Compile_Cxx_Flags :=  -std=c++11 -nostdinc++
-
-UnTrustLib_Name := libLocalAttestation_unTrusted.a
-UnTrustLib_Cpp_Files := $(wildcard Untrusted_LocalAttestation/*.cpp)
-UnTrustLib_Cpp_Objects := $(UnTrustLib_Cpp_Files:.cpp=.o)
-UnTrustLib_Include_Paths := -I$(SGX_SDK)/include -I$(SGX_SDK)/include/ippcp -I./Include -I./LocalAttestationCode
-UnTrustLib_Compile_Flags := $(SGX_COMMON_CFLAGS) -fPIC -Wno-attributes -std=c++11 $(UnTrustLib_Include_Paths)
-
-######## App Settings ########
-
-ifneq ($(SGX_MODE), HW)
-	Urts_Library_Name := sgx_urts_sim
-else
-	Urts_Library_Name := sgx_urts
-endif
-
-App_Cpp_Files := $(wildcard App/*.cpp)
-App_Include_Paths := -I$(SGX_SDK)/include -I$(SGX_SDK)/include/ippcp -I./Include -I./LocalAttestationCode
-
-App_Compile_Flags := $(SGX_COMMON_CFLAGS) -fPIC -Wno-attributes $(App_Include_Paths)
-# Three configuration modes - Debug, prerelease, release
-#   Debug - Macro DEBUG enabled.
-#   Prerelease - Macro NDEBUG and EDEBUG enabled.
-#   Release - Macro NDEBUG enabled.
-ifeq ($(SGX_DEBUG), 1)
-	App_Compile_Flags += -DDEBUG -UNDEBUG -UEDEBUG
-else ifeq ($(SGX_PRERELEASE), 1)
-	App_Compile_Flags += -DNDEBUG -DEDEBUG -UDEBUG
-else
-	App_Compile_Flags += -DNDEBUG -UEDEBUG -UDEBUG
-endif
-
-App_Link_Flags := $(SGX_COMMON_CFLAGS) -L$(SGX_LIBRARY_PATH) -l$(Urts_Library_Name) -L. -lpthread -lLocalAttestation_unTrusted 
-
-ifneq ($(SGX_MODE), HW)
-	App_Link_Flags += -lsgx_uae_service_sim
-else
-	App_Link_Flags += -lsgx_uae_service
-endif
-
-App_Cpp_Objects := $(App_Cpp_Files:.cpp=.o)
-App_Name := app
-
-######## Enclave Settings ########
-
-Enclave1_Version_Script := Enclave1/Enclave1.lds
-Enclave2_Version_Script := Enclave2/Enclave2.lds
-Enclave3_Version_Script := Enclave3/Enclave3.lds
-
-ifneq ($(SGX_MODE), HW)
-	Trts_Library_Name := sgx_trts_sim
-	Service_Library_Name := sgx_tservice_sim
-else
-	Trts_Library_Name := sgx_trts
-	Service_Library_Name := sgx_tservice
-endif
-Crypto_Library_Name := sgx_tcrypto
-
-Enclave_Cpp_Files_1 := $(wildcard Enclave1/*.cpp)
-Enclave_Cpp_Files_2 := $(wildcard Enclave2/*.cpp)
-Enclave_Cpp_Files_3 := $(wildcard Enclave3/*.cpp)
-Enclave_Include_Paths := -I$(SGX_SDK)/include -I$(SGX_SDK)/include/tlibc -I$(SGX_SDK)/include/libcxx -I./LocalAttestationCode -I./Include
-
-CC_BELOW_4_9 := $(shell expr "`$(CC) -dumpversion`" \< "4.9")
-ifeq ($(CC_BELOW_4_9), 1)
-	Enclave_Compile_Flags := $(SGX_COMMON_CFLAGS) -nostdinc -fvisibility=hidden -fpie -ffunction-sections -fdata-sections -fstack-protector
-else
-	Enclave_Compile_Flags := $(SGX_COMMON_CFLAGS) -nostdinc -fvisibility=hidden -fpie -ffunction-sections -fdata-sections -fstack-protector-strong
-endif
-
-Enclave_Compile_Flags += $(Enclave_Include_Paths)
-
-# To generate a proper enclave, it is recommended to follow below guideline to link the trusted libraries:
-#    1. Link sgx_trts with the `--whole-archive' and `--no-whole-archive' options,
-#       so that the whole content of trts is included in the enclave.
-#    2. For other libraries, you just need to pull the required symbols.
-#       Use `--start-group' and `--end-group' to link these libraries.
-# Do NOT move the libraries linked with `--start-group' and `--end-group' within `--whole-archive' and `--no-whole-archive' options.
-# Otherwise, you may get some undesirable errors.
-Common_Enclave_Link_Flags := $(SGX_COMMON_CFLAGS) -Wl,--no-undefined -nostdlib -nodefaultlibs -nostartfiles -L$(SGX_LIBRARY_PATH) \
-	-Wl,--whole-archive -l$(Trts_Library_Name) -Wl,--no-whole-archive \
-	-Wl,--start-group -lsgx_tstdc -lsgx_tcxx -l$(Crypto_Library_Name) -L. -lLocalAttestation_Trusted -l$(Service_Library_Name) -Wl,--end-group \
-	-Wl,-Bstatic -Wl,-Bsymbolic -Wl,--no-undefined \
-	-Wl,-pie,-eenclave_entry -Wl,--export-dynamic  \
-	-Wl,--defsym,__ImageBase=0 -Wl,--gc-sections
-Enclave1_Link_Flags := $(Common_Enclave_Link_Flags) -Wl,--version-script=$(Enclave1_Version_Script)
-Enclave2_Link_Flags := $(Common_Enclave_Link_Flags) -Wl,--version-script=$(Enclave2_Version_Script)
-Enclave3_Link_Flags := $(Common_Enclave_Link_Flags) -Wl,--version-script=$(Enclave3_Version_Script)
-
-Enclave_Cpp_Objects_1 := $(Enclave_Cpp_Files_1:.cpp=.o)
-Enclave_Cpp_Objects_2 := $(Enclave_Cpp_Files_2:.cpp=.o)
-Enclave_Cpp_Objects_3 := $(Enclave_Cpp_Files_3:.cpp=.o)
-
-Enclave_Name_1 := libenclave1.so
-Enclave_Name_2 := libenclave2.so
-Enclave_Name_3 := libenclave3.so
-
-ifeq ($(SGX_MODE), HW)
-ifeq ($(SGX_DEBUG), 1)
-	Build_Mode = HW_DEBUG
-else ifeq ($(SGX_PRERELEASE), 1)
-	Build_Mode = HW_PRERELEASE
-else
-	Build_Mode = HW_RELEASE
-endif
-else
-ifeq ($(SGX_DEBUG), 1)
-	Build_Mode = SIM_DEBUG
-else ifeq ($(SGX_PRERELEASE), 1)
-	Build_Mode = SIM_PRERELEASE
-else
-	Build_Mode = SIM_RELEASE
-endif
-endif
-
-ifeq ($(Build_Mode), HW_RELEASE)
-all: .config_$(Build_Mode)_$(SGX_ARCH) $(Trust_Lib_Name) $(UnTrustLib_Name) Enclave1.so Enclave2.so Enclave3.so $(App_Name)
-	@echo "The project has been built in release hardware mode."
-	@echo "Please sign the enclaves (Enclave1.so, Enclave2.so, Enclave3.so) first with your signing keys before you run the $(App_Name) to launch and access the enclave."
-	@echo "To sign the enclaves use the following commands:"
-	@echo "   $(SGX_ENCLAVE_SIGNER) sign -key <key1> -enclave Enclave1.so -out <$(Enclave_Name_1)> -config Enclave1/Enclave1.config.xml"
-	@echo "   $(SGX_ENCLAVE_SIGNER) sign -key <key2> -enclave Enclave2.so -out <$(Enclave_Name_2)> -config Enclave2/Enclave2.config.xml"
-	@echo "   $(SGX_ENCLAVE_SIGNER) sign -key <key3> -enclave Enclave3.so -out <$(Enclave_Name_3)> -config Enclave3/Enclave3.config.xml"
-	@echo "You can also sign the enclaves using an external signing tool."
-	@echo "To build the project in simulation mode set SGX_MODE=SIM. To build the project in prerelease mode set SGX_PRERELEASE=1 and SGX_MODE=HW."
-else
-all: .config_$(Build_Mode)_$(SGX_ARCH) $(Trust_Lib_Name) $(UnTrustLib_Name) $(Enclave_Name_1) $(Enclave_Name_2) $(Enclave_Name_3) $(App_Name)
-ifeq ($(Build_Mode), HW_DEBUG)
-	@echo "The project has been built in debug hardware mode."
-else ifeq ($(Build_Mode), SIM_DEBUG)
-	@echo "The project has been built in debug simulation mode."
-else ifeq ($(Build_Mode), HW_PRERELEASE)
-	@echo "The project has been built in pre-release hardware mode."
-else ifeq ($(Build_Mode), SIM_PRERELEASE)
-	@echo "The project has been built in pre-release simulation mode."
-else
-	@echo "The project has been built in release simulation mode."
-endif
-endif
-
-.config_$(Build_Mode)_$(SGX_ARCH):
-	@rm -rf .config_* $(App_Name) *.so *.a App/*.o Enclave1/*.o Enclave1/*_t.* Enclave1/*_u.* Enclave2/*.o Enclave2/*_t.* Enclave2/*_u.* Enclave3/*.o Enclave3/*_t.* Enclave3/*_u.*              LocalAttestationCode/*.o Untrusted_LocalAttestation/*.o LocalAttestationCode/*_t.* 
-	@touch .config_$(Build_Mode)_$(SGX_ARCH)
-
-######## Library Objects ########
-
-LocalAttestationCode/LocalAttestationCode_t.c LocalAttestationCode/LocalAttestationCode_t.h : $(SGX_EDGER8R) LocalAttestationCode/LocalAttestationCode.edl
-	@cd LocalAttestationCode && $(SGX_EDGER8R) --trusted ../LocalAttestationCode/LocalAttestationCode.edl --search-path $(SGX_SDK)/include 
-	@echo "GEN  =>  $@"
-
-LocalAttestationCode/LocalAttestationCode_t.o: LocalAttestationCode/LocalAttestationCode_t.c
-	@$(CC) $(TrustLib_Compile_Flags) -c $< -o $@
-	@echo "CC   <=  $<"
-
-LocalAttestationCode/%.o: LocalAttestationCode/%.cpp LocalAttestationCode/LocalAttestationCode_t.h
-	@$(CXX) $(TrustLib_Compile_Flags) $(TrustLib_Compile_Cxx_Flags) -c $< -o $@
-	@echo "CC   <= $<"
-
-$(Trust_Lib_Name): LocalAttestationCode/LocalAttestationCode_t.o $(TrustLib_Cpp_Objects)
-	@$(AR) rcs $@ $^
-	@echo "GEN  =>  $@"
-
-Untrusted_LocalAttestation/%.o: Untrusted_LocalAttestation/%.cpp
-	@$(CXX) $(UnTrustLib_Compile_Flags) -c $< -o $@
-	@echo "CC   <=  $<"
-
-$(UnTrustLib_Name): $(UnTrustLib_Cpp_Objects)
-	@$(AR) rcs $@ $^
-	@echo "GEN  =>  $@"
-
-######## App Objects ########
-Enclave1/Enclave1_u.c Enclave1/Enclave1_u.h: $(SGX_EDGER8R) Enclave1/Enclave1.edl
-	@cd Enclave1 && $(SGX_EDGER8R) --use-prefix --untrusted ../Enclave1/Enclave1.edl --search-path $(SGX_SDK)/include 
-	@echo "GEN  =>  $@"
-
-App/Enclave1_u.o: Enclave1/Enclave1_u.c
-	@$(CC) $(App_Compile_Flags) -c $< -o $@
-	@echo "CC   <=  $<"
-
-Enclave2/Enclave2_u.c Enclave2/Enclave2_u.h: $(SGX_EDGER8R) Enclave2/Enclave2.edl
-	@cd Enclave2 && $(SGX_EDGER8R) --use-prefix --untrusted ../Enclave2/Enclave2.edl --search-path $(SGX_SDK)/include 
-	@echo "GEN  =>  $@"
-
-App/Enclave2_u.o: Enclave2/Enclave2_u.c
-	@$(CC) $(App_Compile_Flags) -c $< -o $@
-	@echo "CC   <=  $<"
-
-Enclave3/Enclave3_u.c Enclave3/Enclave3_u.h: $(SGX_EDGER8R) Enclave3/Enclave3.edl
-	@cd Enclave3 && $(SGX_EDGER8R) --use-prefix --untrusted ../Enclave3/Enclave3.edl --search-path $(SGX_SDK)/include 
-	@echo "GEN  =>  $@"
-
-App/Enclave3_u.o: Enclave3/Enclave3_u.c
-	@$(CC) $(App_Compile_Flags) -c $< -o $@
-	@echo "CC   <=  $<"
-
-App/%.o: App/%.cpp Enclave1/Enclave1_u.h Enclave2/Enclave2_u.h Enclave3/Enclave3_u.h
-	@$(CXX) $(App_Compile_Flags) -c $< -o $@
-	@echo "CXX  <=  $<"
-
-$(App_Name): App/Enclave1_u.o App/Enclave2_u.o App/Enclave3_u.o $(App_Cpp_Objects) $(UnTrustLib_Name)
-	@$(CXX) $^ -o $@ $(App_Link_Flags)
-	@echo "LINK =>  $@"
-
-
-######## Enclave Objects ########
-
-Enclave1/Enclave1_t.c Enclave1/Enclave1_t.h: $(SGX_EDGER8R) Enclave1/Enclave1.edl
-	@cd Enclave1 && $(SGX_EDGER8R) --use-prefix --trusted ../Enclave1/Enclave1.edl --search-path $(SGX_SDK)/include 
-	@echo "GEN  =>  $@"
-
-Enclave1/Enclave1_t.o: Enclave1/Enclave1_t.c
-	@$(CC) $(Enclave_Compile_Flags) -c $< -o $@
-	@echo "CC   <=  $<"
-
-Enclave1/%.o: Enclave1/%.cpp Enclave1/Enclave1_t.h
-	@$(CXX) -std=c++11 -nostdinc++ $(Enclave_Compile_Flags) -c $< -o $@
-	@echo "CXX  <=  $<"
-
-Enclave1.so: Enclave1/Enclave1_t.o $(Enclave_Cpp_Objects_1) $(Trust_Lib_Name)
-	@$(CXX) Enclave1/Enclave1_t.o $(Enclave_Cpp_Objects_1) -o $@ $(Enclave1_Link_Flags)
-	@echo "LINK =>  $@"
-
-$(Enclave_Name_1): Enclave1.so
-	@$(SGX_ENCLAVE_SIGNER) sign -key Enclave1/Enclave1_private.pem -enclave Enclave1.so -out $@ -config Enclave1/Enclave1.config.xml
-	@echo "SIGN =>  $@"
-
-Enclave2/Enclave2_t.c: $(SGX_EDGER8R) Enclave2/Enclave2.edl
-	@cd Enclave2 && $(SGX_EDGER8R)  --use-prefix --trusted ../Enclave2/Enclave2.edl --search-path $(SGX_SDK)/include
-	@echo "GEN  =>  $@"
-
-Enclave2/Enclave2_t.o: Enclave2/Enclave2_t.c
-	@$(CC) $(Enclave_Compile_Flags) -c $< -o $@
-	@echo "CC   <=  $<"
-
-Enclave2/%.o: Enclave2/%.cpp
-	@$(CXX) -std=c++11 -nostdinc++ $(Enclave_Compile_Flags) -c $< -o $@
-	@echo "CXX  <=  $<"
-
-Enclave2.so: Enclave2/Enclave2_t.o $(Enclave_Cpp_Objects_2) $(Trust_Lib_Name)
-	@$(CXX) Enclave2/Enclave2_t.o $(Enclave_Cpp_Objects_2) -o $@ $(Enclave2_Link_Flags)
-	@echo "LINK =>  $@"
-
-$(Enclave_Name_2): Enclave2.so
-	@$(SGX_ENCLAVE_SIGNER) sign -key Enclave2/Enclave2_private.pem -enclave Enclave2.so -out $@ -config Enclave2/Enclave2.config.xml
-	@echo "SIGN =>  $@"
-
-Enclave3/Enclave3_t.c: $(SGX_EDGER8R) Enclave3/Enclave3.edl
-	@cd Enclave3 && $(SGX_EDGER8R)  --use-prefix --trusted ../Enclave3/Enclave3.edl --search-path $(SGX_SDK)/include
-	@echo "GEN  =>  $@"
-
-Enclave3/Enclave3_t.o: Enclave3/Enclave3_t.c
-	@$(CC) $(Enclave_Compile_Flags) -c $< -o $@
-	@echo "CC   <=  $<"
-
-Enclave3/%.o: Enclave3/%.cpp
-	@$(CXX) -std=c++11 -nostdinc++ $(Enclave_Compile_Flags) -c $< -o $@
-	@echo "CXX  <=  $<"
-
-Enclave3.so: Enclave3/Enclave3_t.o $(Enclave_Cpp_Objects_3) $(Trust_Lib_Name)
-	@$(CXX) Enclave3/Enclave3_t.o $(Enclave_Cpp_Objects_3) -o $@ $(Enclave3_Link_Flags)
-	@echo "LINK =>  $@"
-
-$(Enclave_Name_3): Enclave3.so
-	@$(SGX_ENCLAVE_SIGNER) sign -key Enclave3/Enclave3_private.pem -enclave Enclave3.so -out $@ -config Enclave3/Enclave3.config.xml
-	@echo "SIGN =>  $@"
-
-######## Clean ########
-.PHONY: clean
-
-clean:
-	@rm -rf .config_* $(App_Name) *.so *.a App/*.o Enclave1/*.o Enclave1/*_t.* Enclave1/*_u.* Enclave2/*.o Enclave2/*_t.* Enclave2/*_u.* Enclave3/*.o Enclave3/*_t.* Enclave3/*_u.* LocalAttestationCode/*.o Untrusted_LocalAttestation/*.o LocalAttestationCode/*_t.*

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/README.txt

@@ -1,29 +0,0 @@
----------------------------
-Purpose of LocalAttestation
----------------------------
-The project demonstrates:
-- How to establish a protected channel
-- Secret message exchange using enclave to enclave function calls
-
-------------------------------------
-How to Build/Execute the Sample Code
-------------------------------------
-1. Install Intel(R) Software Guard Extensions (Intel(R) SGX) SDK for Linux* OS
-2. Make sure your environment is set:
-    $ source ${sgx-sdk-install-path}/environment
-3. Build the project with the prepared Makefile:
-    a. Hardware Mode, Debug build:
-        $ make
-    b. Hardware Mode, Pre-release build:
-        $ make SGX_PRERELEASE=1 SGX_DEBUG=0
-    c. Hardware Mode, Release build:
-        $ make SGX_DEBUG=0
-    d. Simulation Mode, Debug build:
-        $ make SGX_MODE=SIM
-    e. Simulation Mode, Pre-release build:
-        $ make SGX_MODE=SIM SGX_PRERELEASE=1 SGX_DEBUG=0
-    f. Simulation Mode, Release build:
-        $ make SGX_MODE=SIM SGX_DEBUG=0
-4. Execute the binary directly:
-    $ ./app
-5. Remember to "make clean" before switching build mode

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Untrusted_LocalAttestation/UntrustedEnclaveMessageExchange.cpp

@@ -1,194 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-#include "sgx_eid.h"
-#include "error_codes.h"
-#include "datatypes.h"
-#include "sgx_urts.h"
-#include "UntrustedEnclaveMessageExchange.h"
-#include "sgx_dh.h"
-#include <map>
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-
-std::map<sgx_enclave_id_t, uint32_t>g_enclave_id_map;
-
-//Makes an sgx_ecall to the destination enclave to get session id and message1
-ATTESTATION_STATUS session_request_ocall(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id, sgx_dh_msg1_t* dh_msg1, uint32_t* session_id)
-{
-	uint32_t status = 0;
-	sgx_status_t ret = SGX_SUCCESS;
-
-    // wait for Enclave2 to fill msg1
-    printf("[OCALL IPC] Waiting for Enclave2 to generate SessionID and message1...\n");
-    sleep(5);
-
-    printf("[OCALL IPC] SessionID and message1 should be ready\n");
-
-    // for session id
-    printf("[OCALL IPC] Retriving SessionID from shared memory\n");
-    key_t key_session_id = ftok("../..", 3);
-    int shmid_session_id = shmget(key_session_id, sizeof(uint32_t), 0666|IPC_CREAT);
-    uint32_t* tmp_session_id = (uint32_t*)shmat(shmid_session_id, (void*)0, 0);
-    memcpy(session_id, tmp_session_id, sizeof(uint32_t));
-    shmdt(tmp_session_id);
-
-    // for msg1
-    printf("[OCALL IPC] Retriving message1 from shared memory\n");
-    key_t key_msg1 = ftok("../..", 2);
-    int shmid_msg1 = shmget(key_msg1, sizeof(sgx_dh_msg1_t), 0666|IPC_CREAT);
-    sgx_dh_msg1_t *tmp_msg1 = (sgx_dh_msg1_t*)shmat(shmid_msg1, (void*)0, 0);
-    memcpy(dh_msg1, tmp_msg1, sizeof(sgx_dh_msg1_t));
-    shmdt(tmp_msg1);
-
-    ret = SGX_SUCCESS;
-
-	if (ret == SGX_SUCCESS)
-		return SUCCESS;
-	else
-	    return INVALID_SESSION;
-
-}
-//Makes an sgx_ecall to the destination enclave sends message2 from the source enclave and gets message 3 from the destination enclave
-ATTESTATION_STATUS exchange_report_ocall(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id, sgx_dh_msg2_t *dh_msg2, sgx_dh_msg3_t *dh_msg3, uint32_t session_id)
-{
-	uint32_t status = 0;
-	sgx_status_t ret = SGX_SUCCESS;
-
-    // for msg2 (filled by Enclave1)
-    printf("[OCALL IPC] Passing message2 to shared memory for Enclave2\n");
-    key_t key_msg2 = ftok("../..", 4);
-    int shmid_msg2 = shmget(key_msg2, sizeof(sgx_dh_msg2_t), 0666|IPC_CREAT);
-    sgx_dh_msg2_t *tmp_msg2 = (sgx_dh_msg2_t*)shmat(shmid_msg2, (void*)0, 0);
-    memcpy(tmp_msg2, dh_msg2, sizeof(sgx_dh_msg2_t));
-    shmdt(tmp_msg2);
-
-    // wait for Enclave2 to process msg2
-    printf("[OCALL IPC] Waiting for Enclave2 to process message2 and generate message3...\n");
-    sleep(5);
-
-    // retrieve msg3 (filled by Enclave2)
-    printf("[OCALL IPC] Message3 should be ready\n");
-    printf("[OCALL IPC] Retrieving message3 from shared memory\n");
-    key_t key_msg3 = ftok("../..", 5);
-    int shmid_msg3 = shmget(key_msg3, sizeof(sgx_dh_msg3_t), 0666|IPC_CREAT);
-    sgx_dh_msg3_t *tmp_msg3 = (sgx_dh_msg3_t*)shmat(shmid_msg3, (void*)0, 0);
-    memcpy(dh_msg3, tmp_msg3, sizeof(sgx_dh_msg3_t));
-    shmdt(tmp_msg3);
-
-    ret = SGX_SUCCESS;
-	if (ret == SGX_SUCCESS)
-		return SUCCESS;
-	else
-	    return INVALID_SESSION;
-
-}
-
-//Make an sgx_ecall to the destination enclave function that generates the actual response
-ATTESTATION_STATUS send_request_ocall(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id,secure_message_t* req_message, size_t req_message_size, size_t max_payload_size, secure_message_t* resp_message, size_t resp_message_size)
-{
-	uint32_t status = 0;
-    sgx_status_t ret = SGX_SUCCESS;
-	uint32_t temp_enclave_no;
-
-	std::map<sgx_enclave_id_t, uint32_t>::iterator it = g_enclave_id_map.find(dest_enclave_id);
-    if(it != g_enclave_id_map.end())
-	{
-		temp_enclave_no = it->second;
-	}
-    else
-	{
-		return INVALID_SESSION;
-	}
-
-	switch(temp_enclave_no)
-	{
-		case 1:
-			ret = Enclave1_generate_response(dest_enclave_id, &status, src_enclave_id, req_message, req_message_size, max_payload_size, resp_message, resp_message_size);
-			break;
-		case 2:
-			ret = Enclave2_generate_response(dest_enclave_id, &status, src_enclave_id, req_message, req_message_size, max_payload_size, resp_message, resp_message_size);
-			break;
-		case 3:
-			ret = Enclave3_generate_response(dest_enclave_id, &status, src_enclave_id, req_message, req_message_size, max_payload_size, resp_message, resp_message_size);
-			break;
-	}
-	if (ret == SGX_SUCCESS)
-		return (ATTESTATION_STATUS)status;
-	else
-	    return INVALID_SESSION;
-
-}
-
-//Make an sgx_ecall to the destination enclave to close the session
-ATTESTATION_STATUS end_session_ocall(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id)
-{
-	uint32_t status = 0;
-	sgx_status_t ret = SGX_SUCCESS;
-	uint32_t temp_enclave_no;
-
-	std::map<sgx_enclave_id_t, uint32_t>::iterator it = g_enclave_id_map.find(dest_enclave_id);
-    if(it != g_enclave_id_map.end())
-	{
-		temp_enclave_no = it->second;
-	}
-    else
-	{
-		return INVALID_SESSION;
-	}
-
-	switch(temp_enclave_no)
-	{
-		case 1:
-			ret = Enclave1_end_session(dest_enclave_id, &status, src_enclave_id);
-			break;
-		case 2:
-			ret = Enclave2_end_session(dest_enclave_id, &status, src_enclave_id);
-			break;
-		case 3:
-			ret = Enclave3_end_session(dest_enclave_id, &status, src_enclave_id);
-			break;
-	}
-	if (ret == SGX_SUCCESS)
-		return (ATTESTATION_STATUS)status;
-	else
-	    return INVALID_SESSION;
-
-}
-
-void ocall_print_string(const char *str)
-{
-    printf("%s", str);
-}

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Untrusted_LocalAttestation/UntrustedEnclaveMessageExchange.h

@@ -1,74 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-#include "sgx_eid.h"
-#include "error_codes.h"
-#include "datatypes.h"
-#include "sgx_urts.h"
-#include "dh_session_protocol.h"
-#include "sgx_dh.h"
-#include <cstddef>
-
-
-#ifndef ULOCALATTESTATION_H_
-#define ULOCALATTESTATION_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-sgx_status_t Enclave1_session_request(sgx_enclave_id_t eid, uint32_t* retval, sgx_enclave_id_t src_enclave_id, sgx_dh_msg1_t* dh_msg1, uint32_t* session_id);
-sgx_status_t Enclave1_exchange_report(sgx_enclave_id_t eid, uint32_t* retval, sgx_enclave_id_t src_enclave_id, sgx_dh_msg2_t* dh_msg2, sgx_dh_msg3_t* dh_msg3, uint32_t session_id);
-sgx_status_t Enclave1_generate_response(sgx_enclave_id_t eid, uint32_t* retval, sgx_enclave_id_t src_enclave_id, secure_message_t* req_message, size_t req_message_size, size_t max_payload_size, secure_message_t* resp_message, size_t resp_message_size);
-sgx_status_t Enclave1_end_session(sgx_enclave_id_t eid, uint32_t* retval, sgx_enclave_id_t src_enclave_id);
-
-sgx_status_t Enclave2_session_request(sgx_enclave_id_t eid, uint32_t* retval, sgx_enclave_id_t src_enclave_id, sgx_dh_msg1_t* dh_msg1, uint32_t* session_id);
-sgx_status_t Enclave2_exchange_report(sgx_enclave_id_t eid, uint32_t* retval, sgx_enclave_id_t src_enclave_id, sgx_dh_msg2_t* dh_msg2, sgx_dh_msg3_t* dh_msg3, uint32_t session_id);
-sgx_status_t Enclave2_generate_response(sgx_enclave_id_t eid, uint32_t* retval, sgx_enclave_id_t src_enclave_id, secure_message_t* req_message, size_t req_message_size, size_t max_payload_size, secure_message_t* resp_message, size_t resp_message_size);
-sgx_status_t Enclave2_end_session(sgx_enclave_id_t eid, uint32_t* retval, sgx_enclave_id_t src_enclave_id);
-
-sgx_status_t Enclave3_session_request(sgx_enclave_id_t eid, uint32_t* retval, sgx_enclave_id_t src_enclave_id, sgx_dh_msg1_t* dh_msg1, uint32_t* session_id);
-sgx_status_t Enclave3_exchange_report(sgx_enclave_id_t eid, uint32_t* retval, sgx_enclave_id_t src_enclave_id, sgx_dh_msg2_t* dh_msg2, sgx_dh_msg3_t* dh_msg3, uint32_t session_id);
-sgx_status_t Enclave3_generate_response(sgx_enclave_id_t eid, uint32_t* retval, sgx_enclave_id_t src_enclave_id, secure_message_t* req_message, size_t req_message_size, size_t max_payload_size, secure_message_t* resp_message, size_t resp_message_size);
-sgx_status_t Enclave3_end_session(sgx_enclave_id_t eid, uint32_t* retval, sgx_enclave_id_t src_enclave_id);
-
-uint32_t session_request_ocall(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id, sgx_dh_msg1_t* dh_msg1, uint32_t* session_id);
-uint32_t exchange_report_ocall(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id, sgx_dh_msg2_t* dh_msg2, sgx_dh_msg3_t* dh_msg3, uint32_t session_id);
-uint32_t send_request_ocall(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id, secure_message_t* req_message, size_t req_message_size, size_t max_payload_size, secure_message_t* resp_message, size_t resp_message_size);
-uint32_t end_session_ocall(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-void ocall_print_string(const char *str);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/.cproject

@@ -1,216 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<?fileVersion 4.0.0?><cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
-	<storageModule moduleId="org.eclipse.cdt.core.settings">
-		<cconfiguration id="com.intel.sgx.configuration.Sim.Debug">
-			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.intel.sgx.configuration.Sim.Debug" moduleId="org.eclipse.cdt.core.settings" name="Intel(R) SGX Simulation Debug">
-				<externalSettings/>
-				<extensions>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.MakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.autotools.core.ErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-				</extensions>
-			</storageModule>
-			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-				<configuration artifactName="${ProjName}" buildProperties="" description="" id="com.intel.sgx.configuration.Sim.Debug" name="Intel(R) SGX Simulation Debug" parent="com.intel.sgx.configuration.Sim.Debug">
-					<folderInfo id="com.intel.sgx.configuration.Sim.Debug.935873960" name="/" resourcePath="">
-						<toolChain id="com.intel.sgx.toolChain.Sim.Debug.2132595457" name="Intel(R) SGX" superClass="com.intel.sgx.toolChain.Sim.Debug">
-							<targetPlatform binaryParser="org.eclipse.cdt.core.ELF" id="com.intel.sgx.targetEnclave.1678491512" isAbstract="false" superClass="com.intel.sgx.targetEnclave"/>
-							<builder arguments="SGX_DEBUG=1 SGX_MODE=SIM -f Makefile" command="make" id="com.intel.sgx.builder2.229166714" keepEnvironmentInBuildfile="false" name="Intel(R) Software Guard Extensions Linux Builder" superClass="com.intel.sgx.builder2"/>
-							<tool id="com.intel.sgx.compiler.81269967" name="Intel(R) SGX" superClass="com.intel.sgx.compiler">
-								<option id="com.intel.sgx.option.includePath.1694375039" superClass="com.intel.sgx.option.includePath" valueType="includePath">
-									<listOptionValue builtIn="false" value="&quot;${SGX_SDK}/include&quot;"/>
-								</option>
-								<inputType id="com.intel.sgx.inputType.742388855" superClass="com.intel.sgx.inputType"/>
-							</tool>
-						</toolChain>
-					</folderInfo>
-				</configuration>
-			</storageModule>
-			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-		</cconfiguration>
-		<cconfiguration id="com.intel.sgx.configuration.Sim.Release">
-			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.intel.sgx.configuration.Sim.Release" moduleId="org.eclipse.cdt.core.settings" name="Intel(R) SGX Simulation">
-				<externalSettings/>
-				<extensions>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.MakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.autotools.core.ErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-				</extensions>
-			</storageModule>
-			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-				<configuration artifactName="${ProjName}" buildProperties="" description="" id="com.intel.sgx.configuration.Sim.Release" name="Intel(R) SGX Simulation" parent="com.intel.sgx.configuration.Sim.Release">
-					<folderInfo id="com.intel.sgx.configuration.Sim.Release.428839196" name="/" resourcePath="">
-						<toolChain id="com.intel.sgx.toolChain.Sim.Release.709775329" name="Intel(R) SGX" superClass="com.intel.sgx.toolChain.Sim.Release">
-							<targetPlatform binaryParser="org.eclipse.cdt.core.ELF" id="com.intel.sgx.targetEnclave.1866379479" isAbstract="false" superClass="com.intel.sgx.targetEnclave"/>
-							<builder arguments="SGX_DEBUG=0 SGX_MODE=SIM -f Makefile" command="make" id="com.intel.sgx.builder3.1000705250" keepEnvironmentInBuildfile="false" name="Intel(R) Software Guard Extensions Linux Builder" superClass="com.intel.sgx.builder3"/>
-							<tool id="com.intel.sgx.compiler.301453474" name="Intel(R) SGX" superClass="com.intel.sgx.compiler">
-								<option id="com.intel.sgx.option.includePath.1312096753" superClass="com.intel.sgx.option.includePath" valueType="includePath">
-									<listOptionValue builtIn="false" value="&quot;${SGX_SDK}/include&quot;"/>
-								</option>
-								<inputType id="com.intel.sgx.inputType.596141238" superClass="com.intel.sgx.inputType"/>
-							</tool>
-						</toolChain>
-					</folderInfo>
-				</configuration>
-			</storageModule>
-			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-		</cconfiguration>
-		<cconfiguration id="com.intel.sgx.configuration.HW.Debug">
-			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.intel.sgx.configuration.HW.Debug" moduleId="org.eclipse.cdt.core.settings" name="Intel(R) SGX Hardware Debug">
-				<externalSettings/>
-				<extensions>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.MakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.autotools.core.ErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-				</extensions>
-			</storageModule>
-			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-				<configuration artifactName="${ProjName}" buildProperties="" description="" id="com.intel.sgx.configuration.HW.Debug" name="Intel(R) SGX Hardware Debug" parent="com.intel.sgx.configuration.HW.Debug">
-					<folderInfo id="com.intel.sgx.configuration.HW.Debug.562917509" name="/" resourcePath="">
-						<toolChain id="com.intel.sgx.toolChain.HW.Debug.2046051538" name="Intel(R) SGX" superClass="com.intel.sgx.toolChain.HW.Debug">
-							<targetPlatform binaryParser="org.eclipse.cdt.core.ELF" id="com.intel.sgx.targetEnclave.999277922" isAbstract="false" superClass="com.intel.sgx.targetEnclave"/>
-							<builder arguments="SGX_DEBUG=1 SGX_MODE=HW -f Makefile" command="make" id="com.intel.sgx.builder1.577701014" keepEnvironmentInBuildfile="false" name="Intel(R) Software Guard Extensions Linux Builder" superClass="com.intel.sgx.builder1"/>
-							<tool id="com.intel.sgx.compiler.1898704176" name="Intel(R) SGX" superClass="com.intel.sgx.compiler">
-								<option id="com.intel.sgx.option.includePath.1026657138" superClass="com.intel.sgx.option.includePath" valueType="includePath">
-									<listOptionValue builtIn="false" value="&quot;${SGX_SDK}/include&quot;"/>
-								</option>
-								<inputType id="com.intel.sgx.inputType.393162412" superClass="com.intel.sgx.inputType"/>
-							</tool>
-						</toolChain>
-					</folderInfo>
-				</configuration>
-			</storageModule>
-			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-		</cconfiguration>
-		<cconfiguration id="com.intel.sgx.configuration.HW.Prerelease">
-			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.intel.sgx.configuration.HW.Prerelease" moduleId="org.eclipse.cdt.core.settings" name="Intel(R) SGX Hardware Prerelease">
-				<externalSettings/>
-				<extensions>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.MakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.autotools.core.ErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-				</extensions>
-			</storageModule>
-			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-				<configuration artifactName="${ProjName}" buildProperties="" description="" id="com.intel.sgx.configuration.HW.Prerelease" name="Intel(R) SGX Hardware Prerelease" parent="com.intel.sgx.configuration.HW.Prerelease">
-					<folderInfo id="com.intel.sgx.configuration.HW.Prerelease.2074448686" name="/" resourcePath="">
-						<toolChain id="com.intel.sgx.toolChain.HW.Prerelease.2016152654" name="Intel(R) SGX" superClass="com.intel.sgx.toolChain.HW.Prerelease">
-							<targetPlatform binaryParser="org.eclipse.cdt.core.ELF" id="com.intel.sgx.targetEnclave.1520324017" isAbstract="false" superClass="com.intel.sgx.targetEnclave"/>
-							<builder arguments="SGX_PRERELEASE=1 SGX_MODE=HW -f Makefile" command="make" id="com.intel.sgx.builder5.293910513" keepEnvironmentInBuildfile="false" name="Intel(R) Software Guard Extensions Linux Builder" superClass="com.intel.sgx.builder5"/>
-							<tool id="com.intel.sgx.compiler.845441552" name="Intel(R) SGX" superClass="com.intel.sgx.compiler">
-								<option id="com.intel.sgx.option.includePath.199398937" superClass="com.intel.sgx.option.includePath" valueType="includePath">
-									<listOptionValue builtIn="false" value="&quot;${SGX_SDK}/include&quot;"/>
-								</option>
-								<inputType id="com.intel.sgx.inputType.1555926498" superClass="com.intel.sgx.inputType"/>
-							</tool>
-						</toolChain>
-					</folderInfo>
-				</configuration>
-			</storageModule>
-			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-		</cconfiguration>
-		<cconfiguration id="com.intel.sgx.configuration.HW.Release">
-			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.intel.sgx.configuration.HW.Release" moduleId="org.eclipse.cdt.core.settings" name="Intel(R) SGX Hardware Release">
-				<externalSettings/>
-				<extensions>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.MakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.autotools.core.ErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
-				</extensions>
-			</storageModule>
-			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-				<configuration artifactName="${ProjName}" buildProperties="" description="" id="com.intel.sgx.configuration.HW.Release" name="Intel(R) SGX Hardware Release" parent="com.intel.sgx.configuration.HW.Release">
-					<folderInfo id="com.intel.sgx.configuration.HW.Release.1347223665" name="/" resourcePath="">
-						<toolChain id="com.intel.sgx.toolChain.HW.Release.1050674831" name="Intel(R) SGX" superClass="com.intel.sgx.toolChain.HW.Release">
-							<targetPlatform binaryParser="org.eclipse.cdt.core.ELF" id="com.intel.sgx.targetEnclave.987781695" isAbstract="false" superClass="com.intel.sgx.targetEnclave"/>
-							<builder arguments="SGX_DEBUG=0 SGX_MODE=HW -f Makefile" command="make" id="com.intel.sgx.builder6.484951388" keepEnvironmentInBuildfile="false" name="Intel(R) Software Guard Extensions Linux Builder" superClass="com.intel.sgx.builder6"/>
-							<tool id="com.intel.sgx.compiler.945246695" name="Intel(R) SGX" superClass="com.intel.sgx.compiler">
-								<option id="com.intel.sgx.option.includePath.119487102" superClass="com.intel.sgx.option.includePath" valueType="includePath">
-									<listOptionValue builtIn="false" value="&quot;${SGX_SDK}/include&quot;"/>
-								</option>
-								<inputType id="com.intel.sgx.inputType.593431891" superClass="com.intel.sgx.inputType"/>
-							</tool>
-						</toolChain>
-					</folderInfo>
-				</configuration>
-			</storageModule>
-			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-		</cconfiguration>
-	</storageModule>
-	<storageModule moduleId="cdtBuildSystem" version="4.0.0">
-		<project id="LocalAttestation.cdt.managedbuild.target.gnu.exe.872917958" name="Executable" projectType="cdt.managedbuild.target.gnu.exe"/>
-	</storageModule>
-	<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
-	<storageModule moduleId="refreshScope" versionNumber="2">
-		<configuration configurationName="Intel(R) SGX Hardware Debug">
-			<resource resourceType="PROJECT" workspacePath="/LocalAttestation"/>
-		</configuration>
-		<configuration configurationName="Intel(R) SGX Simulation Debug">
-			<resource resourceType="PROJECT" workspacePath="/LocalAttestation"/>
-		</configuration>
-		<configuration configurationName="Intel(R) SGX Hardware Prerelease">
-			<resource resourceType="PROJECT" workspacePath="/LocalAttestation"/>
-		</configuration>
-		<configuration configurationName="Intel(R) SGX Simulation">
-			<resource resourceType="PROJECT" workspacePath="/LocalAttestation"/>
-		</configuration>
-		<configuration configurationName="Intel(R) SGX Hardware Release">
-			<resource resourceType="PROJECT" workspacePath="/LocalAttestation"/>
-		</configuration>
-	</storageModule>
-	<storageModule moduleId="scannerConfiguration">
-		<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
-		<scannerConfigBuildInfo instanceId="com.intel.sgx.configuration.HW.Release;com.intel.sgx.configuration.HW.Release.1347223665;com.intel.sgx.compiler.945246695;com.intel.sgx.inputType.593431891">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="com.intel.sgx.SGXPerProjectProfile"/>
-		</scannerConfigBuildInfo>
-		<scannerConfigBuildInfo instanceId="com.intel.sgx.configuration.Sim.Debug;com.intel.sgx.configuration.Sim.Debug.935873960;com.intel.sgx.compiler.81269967;com.intel.sgx.inputType.742388855">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="com.intel.sgx.SGXPerProjectProfile"/>
-		</scannerConfigBuildInfo>
-		<scannerConfigBuildInfo instanceId="com.intel.sgx.configuration.Sim.Release;com.intel.sgx.configuration.Sim.Release.428839196;com.intel.sgx.compiler.301453474;com.intel.sgx.inputType.596141238">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="com.intel.sgx.SGXPerProjectProfile"/>
-		</scannerConfigBuildInfo>
-		<scannerConfigBuildInfo instanceId="cdt.managedbuild.config.gnu.exe.debug.1609650460;cdt.managedbuild.config.gnu.exe.debug.1609650460.;cdt.managedbuild.tool.gnu.c.compiler.exe.debug.1644119147;cdt.managedbuild.tool.gnu.c.compiler.input.938348551">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
-		</scannerConfigBuildInfo>
-		<scannerConfigBuildInfo instanceId="cdt.managedbuild.config.gnu.exe.release.1394873887;cdt.managedbuild.config.gnu.exe.release.1394873887.;cdt.managedbuild.tool.gnu.c.compiler.exe.release.2035356548;cdt.managedbuild.tool.gnu.c.compiler.input.793813290">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
-		</scannerConfigBuildInfo>
-		<scannerConfigBuildInfo instanceId="com.intel.sgx.configuration.HW.Debug;com.intel.sgx.configuration.HW.Debug.562917509;com.intel.sgx.compiler.1898704176;com.intel.sgx.inputType.393162412">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="com.intel.sgx.SGXPerProjectProfile"/>
-		</scannerConfigBuildInfo>
-		<scannerConfigBuildInfo instanceId="com.intel.sgx.configuration.HW.Prerelease;com.intel.sgx.configuration.HW.Prerelease.2074448686;com.intel.sgx.compiler.845441552;com.intel.sgx.inputType.1555926498">
-			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId="com.intel.sgx.SGXPerProjectProfile"/>
-		</scannerConfigBuildInfo>
-	</storageModule>
-	<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
-</cproject>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/.project

@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>LocalAttestation</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
-			<triggers>clean,full,incremental,</triggers>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
-			<triggers>full,incremental,</triggers>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.cdt.core.cnature</nature>
-		<nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
-		<nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
-		<nature>org.eclipse.cdt.core.ccnature</nature>
-		<nature>com.intel.sgx.sgxnature</nature>
-	</natures>
-</projectDescription>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/.settings/language.settings.xml

@@ -1,73 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<project>
-	<configuration id="com.intel.sgx.configuration.Sim.Debug" name="Intel(R) SGX Simulation Debug">
-		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
-			<provider class="org.eclipse.cdt.core.language.settings.providers.LanguageSettingsGenericProvider" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider" name="CDT User Setting Entries" prefer-non-shared="true" store-entries-with-project="true">
-				<resource project-relative-path="">
-					<entry kind="includePath" name="${SGX_SDK}/include">
-						<flag value="LOCAL"/>
-					</entry>
-				</resource>
-			</provider>
-			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.GCCBuiltinSpecsDetector" ref="shared-provider"/>
-		</extension>
-	</configuration>
-	<configuration id="com.intel.sgx.configuration.Sim.Release" name="Intel(R) SGX Simulation">
-		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
-			<provider class="org.eclipse.cdt.core.language.settings.providers.LanguageSettingsGenericProvider" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider" name="CDT User Setting Entries" prefer-non-shared="true" store-entries-with-project="true">
-				<resource project-relative-path="">
-					<entry kind="includePath" name="${SGX_SDK}/include">
-						<flag value="LOCAL"/>
-					</entry>
-				</resource>
-			</provider>
-			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.GCCBuiltinSpecsDetector" ref="shared-provider"/>
-		</extension>
-	</configuration>
-	<configuration id="com.intel.sgx.configuration.HW.Debug" name="Intel(R) SGX Hardware Debug">
-		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
-			<provider class="org.eclipse.cdt.core.language.settings.providers.LanguageSettingsGenericProvider" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider" name="CDT User Setting Entries" prefer-non-shared="true" store-entries-with-project="true">
-				<resource project-relative-path="">
-					<entry kind="includePath" name="${SGX_SDK}/include">
-						<flag value="LOCAL"/>
-					</entry>
-				</resource>
-			</provider>
-			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.GCCBuiltinSpecsDetector" ref="shared-provider"/>
-		</extension>
-	</configuration>
-	<configuration id="com.intel.sgx.configuration.HW.Prerelease" name="Intel(R) SGX Hardware Prerelease">
-		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
-			<provider class="org.eclipse.cdt.core.language.settings.providers.LanguageSettingsGenericProvider" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider" name="CDT User Setting Entries" prefer-non-shared="true" store-entries-with-project="true">
-				<resource project-relative-path="">
-					<entry kind="includePath" name="${SGX_SDK}/include">
-						<flag value="LOCAL"/>
-					</entry>
-				</resource>
-			</provider>
-			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.GCCBuiltinSpecsDetector" ref="shared-provider"/>
-		</extension>
-	</configuration>
-	<configuration id="com.intel.sgx.configuration.HW.Release" name="Intel(R) SGX Hardware Release">
-		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
-			<provider class="org.eclipse.cdt.core.language.settings.providers.LanguageSettingsGenericProvider" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider" name="CDT User Setting Entries" prefer-non-shared="true" store-entries-with-project="true">
-				<resource project-relative-path="">
-					<entry kind="includePath" name="${SGX_SDK}/include">
-						<flag value="LOCAL"/>
-					</entry>
-				</resource>
-			</provider>
-			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider-reference id="org.eclipse.cdt.managedbuilder.core.GCCBuiltinSpecsDetector" ref="shared-provider"/>
-		</extension>
-	</configuration>
-</project>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/App/App.cpp

@@ -1,151 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-// App.cpp : Defines the entry point for the console application.
-#include <stdio.h>
-#include <map>
-#include "../Enclave1/Enclave1_u.h"
-#include "../Enclave2/Enclave2_u.h"
-#include "../Enclave3/Enclave3_u.h"
-#include "sgx_eid.h"
-#include "sgx_urts.h"
-#define __STDC_FORMAT_MACROS
-#include <inttypes.h>
-
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#include <unistd.h>
-
-#define UNUSED(val) (void)(val)
-#define TCHAR   char
-#define _TCHAR  char
-#define _T(str) str
-#define scanf_s scanf
-#define _tmain  main
-
-extern std::map<sgx_enclave_id_t, uint32_t>g_enclave_id_map;
-
-
-sgx_enclave_id_t e1_enclave_id = 0;
-sgx_enclave_id_t e2_enclave_id = 0;
-sgx_enclave_id_t e3_enclave_id = 0;
-
-#define ENCLAVE1_PATH "libenclave1.so"
-#define ENCLAVE2_PATH "libenclave2.so"
-#define ENCLAVE3_PATH "libenclave3.so"
-
-void waitForKeyPress()
-{
-    char ch;
-    int temp;
-    printf("\n\nHit a key....\n");
-    temp = scanf_s("%c", &ch);
-}
-
-uint32_t load_enclaves()
-{
-    uint32_t enclave_temp_no;
-    int ret, launch_token_updated;
-    sgx_launch_token_t launch_token;
-
-    enclave_temp_no = 0;
-
-    ret = sgx_create_enclave(ENCLAVE1_PATH, SGX_DEBUG_FLAG, &launch_token, &launch_token_updated, &e1_enclave_id, NULL);
-    if (ret != SGX_SUCCESS) {
-                return ret;
-    }
-
-    enclave_temp_no++;
-    g_enclave_id_map.insert(std::pair<sgx_enclave_id_t, uint32_t>(e1_enclave_id, enclave_temp_no));
-
-    return SGX_SUCCESS;
-}
-
-int _tmain(int argc, _TCHAR* argv[])
-{
-    uint32_t ret_status;
-    sgx_status_t status;
-
-    UNUSED(argc);
-    UNUSED(argv);
-
-    if(load_enclaves() != SGX_SUCCESS)
-    {
-        printf("\nLoad Enclave Failure");
-    }
-
-    //printf("\nAvailable Enclaves");
-    //printf("\nEnclave1 - EnclaveID %" PRIx64 "\n", e1_enclave_id);
-
-    // shared memory between Enlave1 and Enclave2 to pass data
-    key_t key = ftok("../..", 1);
-    int shmid = shmget(key, 1024, 0666 | IPC_CREAT);
-    char *str = (char*)shmat(shmid, (void*)0, 0);
-
-    printf("[TEST IPC] Receiving from Enclave1: %s", str);
-
-    shmdt(str);
-    shmctl(shmid, IPC_RMID, NULL);
-
-    do
-    {
-        printf("[START] Testing create session between Enclave1 (Initiator) and Enclave2 (Responder)\n");
-        status = Enclave1_test_create_session(e1_enclave_id, &ret_status, e1_enclave_id, 0);
-        if (status!=SGX_SUCCESS)
-        {
-            printf("[END] test_create_session Ecall failed: Error code is %x\n", status);
-            break;
-        }
-        else
-        {
-            if(ret_status==0)
-            {
-                printf("[END] Secure Channel Establishment between Initiator (E1) and Responder (E2) Enclaves successful !!!\n");
-            }
-            else
-            {
-                printf("[END] Session establishment and key exchange failure between Initiator (E1) and Responder (E2): Error code is %x\n", ret_status);
-                break;
-            }
-        }
-
-#pragma warning (push)
-#pragma warning (disable : 4127)
-    }while(0);
-#pragma warning (pop)
-
-    sgx_destroy_enclave(e1_enclave_id);
-
-    waitForKeyPress();
-
-    return 0;
-}

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Enclave1.config.xml

@@ -1,12 +0,0 @@
-<EnclaveConfiguration> 
-  <ProdID>0</ProdID> 
-  <ISVSVN>0</ISVSVN> 
-  <StackMaxSize>0x40000</StackMaxSize> 
-  <HeapMaxSize>0x100000</HeapMaxSize> 
-  <TCSNum>1</TCSNum> 
-  <TCSPolicy>1</TCSPolicy> 
-  <!-- Recommend changing 'DisableDebug' to 1 to make the enclave undebuggable for enclave release -->
-  <DisableDebug>0</DisableDebug> 
-  <MiscSelect>0</MiscSelect>
-  <MiscMask>0xFFFFFFFF</MiscMask>
-</EnclaveConfiguration>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Enclave1.cpp

@@ -1,367 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-// Enclave1.cpp : Defines the exported functions for the .so application
-#include "sgx_eid.h"
-#include "Enclave1_t.h"
-#include "EnclaveMessageExchange.h"
-#include "error_codes.h"
-#include "Utility_E1.h"
-#include "sgx_thread.h"
-#include "sgx_dh.h"
-#include <map>
-
-#define UNUSED(val) (void)(val)
-
-std::map<sgx_enclave_id_t, dh_session_t>g_src_session_info_map;
-
-static uint32_t e1_foo1_wrapper(ms_in_msg_exchange_t *ms, size_t param_lenth, char** resp_buffer, size_t* resp_length);
-
-//Function pointer table containing the list of functions that the enclave exposes
-const struct {
-    size_t num_funcs;
-    const void* table[1];
-} func_table = {
-    1,
-    {
-        (const void*)e1_foo1_wrapper,
-    }
-};
-
-//Makes use of the sample code function to establish a secure channel with the destination enclave (Test Vector)
-uint32_t test_create_session(sgx_enclave_id_t src_enclave_id,
-                         sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    dh_session_t dest_session_info;
-
-    //Core reference code function for creating a session
-    ke_status = create_session(src_enclave_id, dest_enclave_id, &dest_session_info);
-
-    return ke_status;
-}
-
-//Makes use of the sample code function to do an enclave to enclave call (Test Vector)
-uint32_t test_enclave_to_enclave_call(sgx_enclave_id_t src_enclave_id,
-                                          sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    uint32_t var1,var2;
-    uint32_t target_fn_id, msg_type;
-    char* marshalled_inp_buff;
-    size_t marshalled_inp_buff_len;
-    char* out_buff;
-    size_t out_buff_len;
-    dh_session_t *dest_session_info;
-    size_t max_out_buff_size;
-    char* retval;
-
-    var1 = 0x4;
-    var2 = 0x5;
-    target_fn_id = 0;
-    msg_type = ENCLAVE_TO_ENCLAVE_CALL;
-    max_out_buff_size = 50;
-
-    //Marshals the input parameters for calling function foo1 in Enclave2 into a input buffer
-    ke_status = marshal_input_parameters_e2_foo1(target_fn_id, msg_type, var1, var2, &marshalled_inp_buff, &marshalled_inp_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        return ke_status;
-    }
-
-    //Search the map for the session information associated with the destination enclave id of Enclave2 passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-          dest_session_info = &it->second;
-    }
-    else
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        return INVALID_SESSION;
-    }
-
-    //Core Reference Code function
-    ke_status = send_request_receive_response(src_enclave_id, dest_enclave_id, dest_session_info, marshalled_inp_buff,
-                                            marshalled_inp_buff_len, max_out_buff_size, &out_buff, &out_buff_len);
-
-
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    //Un-marshal the return value and output parameters from foo1 of Enclave 2
-    ke_status = unmarshal_retval_and_output_parameters_e2_foo1(out_buff, &retval);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    SAFE_FREE(marshalled_inp_buff);
-    SAFE_FREE(out_buff);
-    SAFE_FREE(retval);
-    return SUCCESS;
-}
-
-//Makes use of the sample code function to do a generic secret message exchange (Test Vector)
-uint32_t test_message_exchange(sgx_enclave_id_t src_enclave_id,
-                               sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    uint32_t target_fn_id, msg_type;
-    char* marshalled_inp_buff;
-    size_t marshalled_inp_buff_len;
-    char* out_buff;
-    size_t out_buff_len;
-    dh_session_t *dest_session_info;
-    size_t max_out_buff_size;
-    char* secret_response;
-    uint32_t secret_data;
-
-    target_fn_id = 0;
-    msg_type = MESSAGE_EXCHANGE;
-    max_out_buff_size = 50;
-    secret_data = 0x12345678; //Secret Data here is shown only for purpose of demonstration.
-
-    //Marshals the secret data into a buffer
-    ke_status = marshal_message_exchange_request(target_fn_id, msg_type, secret_data, &marshalled_inp_buff, &marshalled_inp_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        return ke_status;
-    }
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-         dest_session_info = &it->second;
-    }
-    else
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        return INVALID_SESSION;
-    }
-
-    //Core Reference Code function
-    ke_status = send_request_receive_response(src_enclave_id, dest_enclave_id, dest_session_info, marshalled_inp_buff,
-                                                marshalled_inp_buff_len, max_out_buff_size, &out_buff, &out_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    //Un-marshal the secret response data
-    ke_status = umarshal_message_exchange_response(out_buff, &secret_response);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    SAFE_FREE(marshalled_inp_buff);
-    SAFE_FREE(out_buff);
-    SAFE_FREE(secret_response);
-    return SUCCESS;
-}
-
-
-//Makes use of the sample code function to close a current session
-uint32_t test_close_session(sgx_enclave_id_t src_enclave_id,
-                                sgx_enclave_id_t dest_enclave_id)
-{
-    dh_session_t dest_session_info;
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-        dest_session_info = it->second;
-    }
-    else
-    {
-        return NULL;
-    }
-
-    //Core reference code function for closing a session
-    ke_status = close_session(src_enclave_id, dest_enclave_id);
-
-    //Erase the session information associated with the destination enclave id
-    g_src_session_info_map.erase(dest_enclave_id);
-    return ke_status;
-}
-
-//Function that is used to verify the trust of the other enclave
-//Each enclave can have its own way verifying the peer enclave identity
-extern "C" uint32_t verify_peer_enclave_trust(sgx_dh_session_enclave_identity_t* peer_enclave_identity)
-{
-    if(!peer_enclave_identity)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    if(peer_enclave_identity->isv_prod_id != 0 || !(peer_enclave_identity->attributes.flags & SGX_FLAGS_INITTED))
-        // || peer_enclave_identity->attributes.xfrm !=3)// || peer_enclave_identity->mr_signer != xx //TODO: To be hardcoded with values to check
-    {
-        return ENCLAVE_TRUST_ERROR;
-    }
-    else
-    {
-        return SUCCESS;
-    }
-}
-
-
-//Dispatcher function that calls the approriate enclave function based on the function id
-//Each enclave can have its own way of dispatching the calls from other enclave
-extern "C" uint32_t enclave_to_enclave_call_dispatcher(char* decrypted_data,
-                                                       size_t decrypted_data_length,
-                                                       char** resp_buffer,
-                                                       size_t* resp_length)
-{
-    ms_in_msg_exchange_t *ms;
-    uint32_t (*fn1)(ms_in_msg_exchange_t *ms, size_t, char**, size_t*);
-    if(!decrypted_data || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    ms = (ms_in_msg_exchange_t *)decrypted_data;
-    if(ms->target_fn_id >= func_table.num_funcs)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    fn1 = (uint32_t (*)(ms_in_msg_exchange_t*, size_t, char**, size_t*))func_table.table[ms->target_fn_id];
-    return fn1(ms, decrypted_data_length, resp_buffer, resp_length);
-}
-
-//Operates on the input secret and generates the output secret
-uint32_t get_message_exchange_response(uint32_t inp_secret_data)
-{
-    uint32_t secret_response;
-
-    //User should use more complex encryption method to protect their secret, below is just a simple example
-    secret_response = inp_secret_data & 0x11111111;
-
-    return secret_response;
-
-}
-
-//Generates the response from the request message
-extern "C" uint32_t message_exchange_response_generator(char* decrypted_data,
-                                              char** resp_buffer,
-                                              size_t* resp_length)
-{
-    ms_in_msg_exchange_t *ms;
-    uint32_t inp_secret_data;
-    uint32_t out_secret_data;
-    if(!decrypted_data || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    ms = (ms_in_msg_exchange_t *)decrypted_data;
-
-    if(umarshal_message_exchange_request(&inp_secret_data,ms) != SUCCESS)
-        return ATTESTATION_ERROR;
-
-    out_secret_data = get_message_exchange_response(inp_secret_data);
-
-    if(marshal_message_exchange_response(resp_buffer, resp_length, out_secret_data) != SUCCESS)
-        return MALLOC_ERROR;
-
-    return SUCCESS;
-
-}
-
-
-static uint32_t e1_foo1(external_param_struct_t *p_struct_var)
-{
-    if(!p_struct_var)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    (p_struct_var->var1)++;
-    (p_struct_var->var2)++;
-    (p_struct_var->p_internal_struct->ivar1)++;
-    (p_struct_var->p_internal_struct->ivar2)++;
-
-    return (p_struct_var->var1 + p_struct_var->var2 + p_struct_var->p_internal_struct->ivar1 + p_struct_var->p_internal_struct->ivar2);
-}
-
-//Function which is executed on request from the source enclave
-static uint32_t e1_foo1_wrapper(ms_in_msg_exchange_t *ms,
-                    size_t param_lenth,
-                    char** resp_buffer,
-                    size_t* resp_length)
-{
-    UNUSED(param_lenth);
-
-    uint32_t ret;
-    size_t len_data, len_ptr_data;
-    external_param_struct_t *p_struct_var;
-    internal_param_struct_t internal_struct_var;
-
-    if(!ms || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-
-    p_struct_var = (external_param_struct_t*)malloc(sizeof(external_param_struct_t));
-    if(!p_struct_var)
-        return MALLOC_ERROR;
-
-    p_struct_var->p_internal_struct = &internal_struct_var;
-
-    if(unmarshal_input_parameters_e1_foo1(p_struct_var, ms) != SUCCESS)//can use the stack
-    {
-        SAFE_FREE(p_struct_var);
-        return ATTESTATION_ERROR;
-    }
-
-    ret = e1_foo1(p_struct_var);
-
-    len_data = sizeof(external_param_struct_t) - sizeof(p_struct_var->p_internal_struct);
-    len_ptr_data = sizeof(internal_struct_var);
-
-    if(marshal_retval_and_output_parameters_e1_foo1(resp_buffer, resp_length, ret, p_struct_var, len_data, len_ptr_data) != SUCCESS)
-    {
-        SAFE_FREE(p_struct_var);
-        return MALLOC_ERROR;
-    }
-    SAFE_FREE(p_struct_var);
-    return SUCCESS;
-}
-

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Enclave1.edl

@@ -1,43 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-enclave {
-    include "sgx_eid.h"
-    from "../LocalAttestationCode/LocalAttestationCode.edl" import *;
-    from "sgx_tstdc.edl" import *;
-    trusted{
-            public uint32_t test_create_session(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-            public uint32_t test_enclave_to_enclave_call(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-            public uint32_t test_message_exchange(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-            public uint32_t test_close_session(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-    };
-
-};

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Enclave1.lds

@@ -1,10 +0,0 @@
-Enclave1.so
-{
-    global:
-        g_global_data_sim;
-        g_global_data;
-        enclave_entry;
-        g_peak_heap_used;
-    local:
-        *;
-};

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Enclave1_private.pem

@@ -1,39 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIG4wIBAAKCAYEAuJh4w/KzndQhzEqwH6Ut/3BmOom5CN117KT1/cemEbDLPhn0
-c5yjAfe4NL1qtGqz0RTK9X9BBSi89b6BrsM9S6c2cUJaeYAPrAtJ+IuzN/5BAmmf
-RXbPccETd7rHvDdQ9KBRjCipTx+H0D5nOB76S5PZPVrduwrCmSqVFmLNVWWfPYQx
-YewbJ2QfEfioICZFYR0Jou38mJqDTl+CH0gLAuQ4n1kdpQ3VGymzt3oUiPzf5ImJ
-oZh5HjarRRiWV+cyNyXYJTnx0dOtFQDgd8HhniagbRB0ZOIt6599JjMkWGkVP0Ni
-U/NIlXG5musU35GfLB8MbTcxblMNm9sMYz1R8y/eAreoPTXUhtK8NG2TEywRh3UP
-RF9/jM9WczjQXxJ3RznKOwNVwg4cRY2AOqD2vb1iGSqyc/WMzVULgfclkcScp75/
-Auz9Y6473CQvaxyrseSWHGwCG7KG1GxYE8Bg8T6OlYD4mzKggoMdwVLAzUepRaPZ
-5hqRDZzbTGUxJ+GLAgEDAoIBgHsQUIKhzRPiwTLcdWpuHqpK7tGxJgXo+Uht+VPa
-brZ13NQRTaJobKv6es3TnHhHIotjMfj/gK4bKKPUVnSCKN0aJEuBkaZVX8gHhqWy
-d3qpgKxGai5PNPaAt6UnL9LPi03ANl1wcN9qWorURNAUpt0NO348k9IHLGYcY2RB
-3jjuaikCy5adZ2+YFLalxWrELkC+BmyeqGW8V4mVAWowB1dC0Go7aRiz42dxInpR
-YwX96phbsRZlphQkci4QZDqaIFg3ndzTO5bo704zaMcbWtEjmFrYRyb519tRoDkN
-Y0rGwOxFANeRV5dSfGGLm7K5JztiuHN0nMu3PhY4LOV0SeZ4+5sYn0LzB2nyKqgy
-/c3AA2OG34DEdGxxh94kD66iKFVPyJG38/gnu9CsGmrLl3n4fgutPEVIbPdSSjex
-4Y9EQfcnqImPxTrpP9CqD208VPcQHD/uy8s9q3961Ew3RPdHMZ8amIJdXkOmPEme
-KZ7SG+VENBaj8r038iq1mPzcWwKBwQDcvJg75LfVuKX+cWMrTO2+MFVcEFiZ/NB/
-gh7mgL6lCleROVa9P6iR2Wn6vHq8nP5BkChehm/rXEG78fgXEMoArimF7FrrICfI
-4yB0opDJz/tWrE/62impN7OR8Ce+RQThFj4RTnibQEEVt++JMUXFiMKLdWDSpC2i
-tNWnlTOb7d89bk0yk62IoLElCZK/MIMxkCHBKW6YgrmvlPJKQwpA6Z3wQbUpE6Rb
-9f8xJfxZGEJPH0s3Ds9A0CVuEt8OOXcCgcEA1hXTHhhgmb2gIUJgIcvrpkDmiLux
-EG6ZoyLt6h5QwzScS6KKU1mcoJyVDd0wlt7mEXrPYYHWUWPuvpTQ8/4ZGMw7FCZe
-bakhnwRbw36FlLwRG35wCF6nQO1XFBKRGto15ivfTyDvMpJBdtNpET5NwT/ifDF3
-OWS7t6TGhtcfnvBad5S1AgGoAq+q/huFiBGpDbxJ+1xh0lNL5Z8nVypvPWomNpde
-rpLuwRPEIb+GBfQ9Hp5AjRXVsPjKnkHsnl2NAoHBAJMoZX1DJTklw/72Qhzd89Qg
-OOgK5bv94FUBae8Afxixj7YmOdN/xbaQ8VHS/H29/tZgGumu9UeS1n1L+roLMVXJ
-cQPy50dqxTCXavhsYIaKp48diqc8G8YlImFKxSmDWJYO1AuJpbzVgLklSlt2LoOw
-gbJOQIxtc8HN48UOImfz6ij0M3cNHlsVy24GYdTLAiEKwStw9GWse8pjTDGCBtXx
-E/WBI3C3wuf5VMtuqDtlgYoU3M9fNNXgGPQMlLQmTwKBwQCOuTdpZZW708AWLEAW
-h/Ju1e8F0nYK9GZswfPxaYsszb2HwbGM5mhrEw4JPiBklJlg/IpBATmLl/R/DeCi
-qWYQiCdixD7zxhZqAufXqa5jKAtnqaAFlG+AnjoNYbYR5s6ZcpTfa0ohttZPN5tg
-1DPWKpb9dk97mH0lGIRZ5L+/Sub6YyNWq8VXH8dUElkFYRtefYankuvhjN1Dv2+P
-cZ9+RsQkZOnJt0nWDS1r1QQD+Ci/FCsIuTkgpdxpgUhpk7MCgcEAkfkmaBDb7DG2
-Kc39R6ZZuPnV10w+WOpph7ugwcguG/E0wGq+jFWv6HFckCPeHT4BNtOk8Dem/kPp
-teF51eAuFWEefj2tScvlSBBPcnla+WzMWXrlxVnajTt73w+oT2Ql//WhgREpsNfx
-SvU80YPVu4GJfl+hhxBifLx+0FM20OESW93qFRc3p040bNrDY9JIZuly/y5zaiBa
-mRZF9H8P+x3Lu5AJpdXQEOMZ/XJ/xkoWWjbTojkmgOmmZSMLd5Te
------END RSA PRIVATE KEY-----

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Utility_E1.cpp

@@ -1,222 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "sgx_eid.h"
-#include "EnclaveMessageExchange.h"
-#include "error_codes.h"
-#include "Utility_E1.h"
-#include "stdlib.h"
-#include "string.h"
-
-uint32_t marshal_input_parameters_e2_foo1(uint32_t target_fn_id, uint32_t msg_type, uint32_t var1, uint32_t var2, char** marshalled_buff, size_t* marshalled_buff_len)
-{
-    ms_in_msg_exchange_t *ms;
-    size_t param_len, ms_len;
-    char *temp_buff;
-        
-    param_len = sizeof(var1)+sizeof(var2);
-    temp_buff = (char*)malloc(param_len);
-    if(!temp_buff)
-        return MALLOC_ERROR;
-
-    memcpy(temp_buff,&var1,sizeof(var1));
-    memcpy(temp_buff+sizeof(var1),&var2,sizeof(var2));
-    ms_len = sizeof(ms_in_msg_exchange_t) + param_len;
-    ms = (ms_in_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-    {
-        SAFE_FREE(temp_buff);
-        return MALLOC_ERROR;
-    }
-    ms->msg_type = msg_type;
-    ms->target_fn_id = target_fn_id;
-    ms->inparam_buff_len = (uint32_t)param_len;
-    memcpy(&ms->inparam_buff, temp_buff, param_len);
-    *marshalled_buff = (char*)ms;
-    *marshalled_buff_len = ms_len;
-    SAFE_FREE(temp_buff);
-    return SUCCESS;
-}
-
-uint32_t unmarshal_retval_and_output_parameters_e2_foo1(char* out_buff, char** retval)
-{
-    size_t retval_len;
-    ms_out_msg_exchange_t *ms;
-    if(!out_buff)
-        return INVALID_PARAMETER_ERROR;
-    ms = (ms_out_msg_exchange_t *)out_buff;
-    retval_len = ms->retval_len;
-    *retval = (char*)malloc(retval_len);
-    if(!*retval)
-        return MALLOC_ERROR;
-
-    memcpy(*retval, ms->ret_outparam_buff, retval_len);
-    return SUCCESS;
-}
-
-uint32_t unmarshal_input_parameters_e1_foo1(external_param_struct_t *pstruct, ms_in_msg_exchange_t* ms)
-{
-    char* buff;
-    size_t len;
-    if(!pstruct || !ms)
-        return INVALID_PARAMETER_ERROR;
-
-    buff = ms->inparam_buff;
-    len = ms->inparam_buff_len;
-    if(len != (sizeof(pstruct->var1)+sizeof(pstruct->var2)+sizeof(pstruct->p_internal_struct->ivar1)+sizeof(pstruct->p_internal_struct->ivar2)))
-        return ATTESTATION_ERROR;
-
-    memcpy(&pstruct->var1, buff, sizeof(pstruct->var1));
-    memcpy(&pstruct->var2, buff + sizeof(pstruct->var1), sizeof(pstruct->var2));
-    memcpy(&pstruct->p_internal_struct->ivar1, buff+(sizeof(pstruct->var1)+sizeof(pstruct->var2)), sizeof(pstruct->p_internal_struct->ivar1)); 
-    memcpy(&pstruct->p_internal_struct->ivar2, buff+(sizeof(pstruct->var1)+sizeof(pstruct->var2)+sizeof(pstruct->p_internal_struct->ivar1)), sizeof(pstruct->p_internal_struct->ivar2));
-
-    return SUCCESS;
-}
-
-uint32_t marshal_retval_and_output_parameters_e1_foo1(char** resp_buffer, size_t* resp_length, uint32_t retval, external_param_struct_t *p_struct_var, size_t len_data, size_t len_ptr_data)
-{
-    ms_out_msg_exchange_t *ms;
-    size_t param_len, ms_len, ret_param_len;;
-    char *temp_buff;
-    int* addr;
-    char* struct_data;
-    size_t retval_len;
-    
-    if(!resp_length || !p_struct_var)
-        return INVALID_PARAMETER_ERROR;
-
-    retval_len = sizeof(retval);
-    struct_data = (char*)p_struct_var;    
-    param_len = len_data + len_ptr_data;
-    ret_param_len = param_len + retval_len;
-    addr = *(int **)(struct_data + len_data);
-    temp_buff = (char*)malloc(ret_param_len);
-    if(!temp_buff)
-        return MALLOC_ERROR;
-
-    memcpy(temp_buff, &retval, sizeof(retval)); 
-    memcpy(temp_buff + sizeof(retval), struct_data, len_data);
-    memcpy(temp_buff + sizeof(retval) + len_data, addr, len_ptr_data);
-    ms_len = sizeof(ms_out_msg_exchange_t) + ret_param_len;
-    ms = (ms_out_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-    {
-        SAFE_FREE(temp_buff);
-        return MALLOC_ERROR;
-    }
-    ms->retval_len = (uint32_t)retval_len;
-    ms->ret_outparam_buff_len = (uint32_t)ret_param_len;
-    memcpy(&ms->ret_outparam_buff, temp_buff, ret_param_len);
-    *resp_buffer = (char*)ms;
-    *resp_length = ms_len;
-    
-    SAFE_FREE(temp_buff);
-    return SUCCESS;
-}
-
-uint32_t marshal_message_exchange_request(uint32_t target_fn_id, uint32_t msg_type, uint32_t secret_data, char** marshalled_buff, size_t* marshalled_buff_len)
-{
-    ms_in_msg_exchange_t *ms;
-    size_t secret_data_len, ms_len;
-    if(!marshalled_buff_len)
-        return INVALID_PARAMETER_ERROR;
-    secret_data_len = sizeof(secret_data);
-    ms_len = sizeof(ms_in_msg_exchange_t) + secret_data_len;
-    ms = (ms_in_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-        return MALLOC_ERROR;
-
-    ms->msg_type = msg_type;
-    ms->target_fn_id = target_fn_id;
-    ms->inparam_buff_len = (uint32_t)secret_data_len;
-    memcpy(&ms->inparam_buff, &secret_data, secret_data_len);
-    *marshalled_buff = (char*)ms;
-    *marshalled_buff_len = ms_len;
-     return SUCCESS;
-}
-
-uint32_t umarshal_message_exchange_request(uint32_t* inp_secret_data, ms_in_msg_exchange_t* ms)
-{
-    char* buff;
-    size_t len;
-    if(!inp_secret_data || !ms)
-        return INVALID_PARAMETER_ERROR;
-    buff = ms->inparam_buff;
-    len = ms->inparam_buff_len;
-    if(len != sizeof(uint32_t))
-        return ATTESTATION_ERROR;
-
-    memcpy(inp_secret_data, buff, sizeof(uint32_t));    
-
-    return SUCCESS;
-}
-
-uint32_t marshal_message_exchange_response(char** resp_buffer, size_t* resp_length, uint32_t secret_response)
-{
-    ms_out_msg_exchange_t *ms;
-    size_t secret_response_len, ms_len;
-    size_t retval_len, ret_param_len;
-    if(!resp_length)
-        return INVALID_PARAMETER_ERROR;
-    secret_response_len = sizeof(secret_response);
-    retval_len = secret_response_len;
-    ret_param_len = secret_response_len;
-    ms_len = sizeof(ms_out_msg_exchange_t) + ret_param_len;
-    ms = (ms_out_msg_exchange_t *)malloc(ms_len);
-    if(!ms)
-        return MALLOC_ERROR;
-
-    ms->retval_len = (uint32_t)retval_len;
-    ms->ret_outparam_buff_len = (uint32_t)ret_param_len;
-    memcpy(&ms->ret_outparam_buff, &secret_response, secret_response_len);
-    *resp_buffer = (char*)ms;
-    *resp_length = ms_len;
-    return SUCCESS;
-}
-
-uint32_t umarshal_message_exchange_response(char* out_buff, char** secret_response)
-{
-    size_t retval_len;
-    ms_out_msg_exchange_t *ms;
-    if(!out_buff)
-        return INVALID_PARAMETER_ERROR;
-    ms = (ms_out_msg_exchange_t *)out_buff;
-    retval_len = ms->retval_len;
-    *secret_response = (char*)malloc(retval_len);
-    if(!*secret_response)
-    {
-        return MALLOC_ERROR;
-    }
-    memcpy(*secret_response, ms->ret_outparam_buff, retval_len);
-    return SUCCESS;
-}
-

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Utility_E1.h

@@ -1,65 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef UTILITY_E1_H__
-#define UTILITY_E1_H__
-
-#include "stdint.h"
-
-typedef struct _internal_param_struct_t
-{
-    uint32_t ivar1;
-    uint32_t ivar2;
-}internal_param_struct_t;
-
-typedef struct _external_param_struct_t
-{
-    uint32_t var1;
-    uint32_t var2;
-    internal_param_struct_t *p_internal_struct;
-}external_param_struct_t;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-uint32_t marshal_input_parameters_e2_foo1(uint32_t target_fn_id, uint32_t msg_type, uint32_t var1, uint32_t var2, char** marshalled_buff, size_t* marshalled_buff_len);
-uint32_t unmarshal_retval_and_output_parameters_e2_foo1(char* out_buff, char** retval);
-uint32_t unmarshal_input_parameters_e1_foo1(external_param_struct_t *pstruct, ms_in_msg_exchange_t* ms);
-uint32_t marshal_retval_and_output_parameters_e1_foo1(char** resp_buffer, size_t* resp_length, uint32_t retval, external_param_struct_t *p_struct_var, size_t len_data, size_t len_ptr_data);
-uint32_t marshal_message_exchange_request(uint32_t target_fn_id, uint32_t msg_type, uint32_t secret_data, char** marshalled_buff, size_t* marshalled_buff_len);
-uint32_t umarshal_message_exchange_request(uint32_t* inp_secret_data, ms_in_msg_exchange_t* ms);
-uint32_t marshal_message_exchange_response(char** resp_buffer, size_t* resp_length, uint32_t secret_response);
-uint32_t umarshal_message_exchange_response(char* out_buff, char** secret_response);
-#ifdef __cplusplus
- }
-#endif
-#endif

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave2/Enclave2.config.xml

@@ -1,12 +0,0 @@
-<EnclaveConfiguration> 
-  <ProdID>0</ProdID> 
-  <ISVSVN>0</ISVSVN> 
-  <StackMaxSize>0x40000</StackMaxSize> 
-  <HeapMaxSize>0x100000</HeapMaxSize> 
-  <TCSNum>1</TCSNum> 
-  <TCSPolicy>1</TCSPolicy>
-  <!-- Recommend changing 'DisableDebug' to 1 to make the enclave undebuggable for enclave release -->
-  <DisableDebug>0</DisableDebug>
-  <MiscSelect>0</MiscSelect>
-  <MiscMask>0xFFFFFFFF</MiscMask>
-</EnclaveConfiguration>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave2/Enclave2.cpp

@@ -1,339 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-// Enclave2.cpp : Defines the exported functions for the DLL application
-#include "sgx_eid.h"
-#include "Enclave2_t.h"
-#include "EnclaveMessageExchange.h"
-#include "error_codes.h"
-#include "Utility_E2.h"
-#include "sgx_thread.h"
-#include "sgx_dh.h"
-#include <map>
-
-#define UNUSED(val) (void)(val)
-
-std::map<sgx_enclave_id_t, dh_session_t>g_src_session_info_map;
-
-static uint32_t e2_foo1_wrapper(ms_in_msg_exchange_t *ms, size_t param_lenth, char** resp_buffer, size_t* resp_length);
-
-//Function pointer table containing the list of functions that the enclave exposes
-const struct {
-    size_t num_funcs;
-    const void* table[1];
-} func_table = {
-    1,
-    {
-        (const void*)e2_foo1_wrapper,
-    }
-};
-
-//Makes use of the sample code function to establish a secure channel with the destination enclave
-uint32_t test_create_session(sgx_enclave_id_t src_enclave_id,
-                          sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    dh_session_t dest_session_info;
-    //Core reference code function for creating a session
-    ke_status = create_session(src_enclave_id, dest_enclave_id,&dest_session_info);
-    if(ke_status == SUCCESS)
-    {
-        //Insert the session information into the map under the corresponding destination enclave id
-        g_src_session_info_map.insert(std::pair<sgx_enclave_id_t, dh_session_t>(dest_enclave_id, dest_session_info));
-    }
-    memset(&dest_session_info, 0, sizeof(dh_session_t));
-    return ke_status;
-}
-
-//Makes use of the sample code function to do an enclave to enclave call (Test Vector)
-uint32_t test_enclave_to_enclave_call(sgx_enclave_id_t src_enclave_id,
-                                          sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    param_struct_t *p_struct_var, struct_var;
-    uint32_t target_fn_id, msg_type;
-    char* marshalled_inp_buff;
-    size_t marshalled_inp_buff_len;
-    char* out_buff;
-    size_t out_buff_len;
-    dh_session_t *dest_session_info;
-    size_t max_out_buff_size;
-    char* retval;
-
-    max_out_buff_size = 50;
-    target_fn_id = 0;
-    msg_type = ENCLAVE_TO_ENCLAVE_CALL;
-
-    struct_var.var1 = 0x3;
-    struct_var.var2 = 0x4;
-    p_struct_var = &struct_var;
-
-    //Marshals the input parameters for calling function foo1 in Enclave3 into a input buffer
-    ke_status = marshal_input_parameters_e3_foo1(target_fn_id, msg_type, p_struct_var, &marshalled_inp_buff, &marshalled_inp_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        return ke_status;
-    }
-
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-         dest_session_info = &it->second;
-    }
-    else
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        return INVALID_SESSION;
-    }
-
-    //Core Reference Code function
-    ke_status = send_request_receive_response(src_enclave_id, dest_enclave_id, dest_session_info, marshalled_inp_buff,
-                                               marshalled_inp_buff_len, max_out_buff_size, &out_buff, &out_buff_len);
-
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    //Un-marshal the return value and output parameters from foo1 of Enclave3
-    ke_status = unmarshal_retval_and_output_parameters_e3_foo1(out_buff, p_struct_var, &retval);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    SAFE_FREE(marshalled_inp_buff);
-    SAFE_FREE(out_buff);
-    SAFE_FREE(retval);
-    return SUCCESS;
-}
-
-//Makes use of the sample code function to do a generic secret message exchange (Test Vector)
-uint32_t test_message_exchange(sgx_enclave_id_t src_enclave_id,
-                               sgx_enclave_id_t dest_enclave_id)
-{
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    uint32_t target_fn_id, msg_type;
-    char* marshalled_inp_buff;
-    size_t marshalled_inp_buff_len;
-    char* out_buff;
-    size_t out_buff_len;
-    dh_session_t *dest_session_info;
-    size_t max_out_buff_size;
-    char* secret_response;
-    uint32_t secret_data;
-
-    target_fn_id = 0;
-    msg_type = MESSAGE_EXCHANGE;
-    max_out_buff_size = 50;
-    secret_data = 0x12345678; //Secret Data here is shown only for purpose of demonstration.
-
-    //Marshals the secret data into a buffer
-    ke_status = marshal_message_exchange_request(target_fn_id, msg_type, secret_data, &marshalled_inp_buff, &marshalled_inp_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        return ke_status;
-    }
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-           dest_session_info = &it->second;
-    }
-    else
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        return INVALID_SESSION;
-    }
-
-    //Core Reference Code function
-    ke_status = send_request_receive_response(src_enclave_id, dest_enclave_id, dest_session_info, marshalled_inp_buff,
-                                                marshalled_inp_buff_len, max_out_buff_size, &out_buff, &out_buff_len);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    //Un-marshal the secret response data
-    ke_status = umarshal_message_exchange_response(out_buff, &secret_response);
-    if(ke_status != SUCCESS)
-    {
-        SAFE_FREE(marshalled_inp_buff);
-        SAFE_FREE(out_buff);
-        return ke_status;
-    }
-
-    SAFE_FREE(marshalled_inp_buff);
-    SAFE_FREE(out_buff);
-    SAFE_FREE(secret_response);
-    return SUCCESS;
-}
-
-
-//Makes use of the sample code function to close a current session
-uint32_t test_close_session(sgx_enclave_id_t src_enclave_id,
-                                sgx_enclave_id_t dest_enclave_id)
-{
-    dh_session_t dest_session_info;
-    ATTESTATION_STATUS ke_status = SUCCESS;
-    //Search the map for the session information associated with the destination enclave id passed in
-    std::map<sgx_enclave_id_t, dh_session_t>::iterator it = g_src_session_info_map.find(dest_enclave_id);
-    if(it != g_src_session_info_map.end())
-    {
-         dest_session_info = it->second;
-    }
-    else
-    {
-        return NULL;
-    }
-    //Core reference code function for closing a session
-    ke_status = close_session(src_enclave_id, dest_enclave_id);
-
-    //Erase the session information associated with the destination enclave id
-    g_src_session_info_map.erase(dest_enclave_id);
-    return ke_status;
-}
-
-//Function that is used to verify the trust of the other enclave
-//Each enclave can have its own way verifying the peer enclave identity
-extern "C" uint32_t verify_peer_enclave_trust(sgx_dh_session_enclave_identity_t* peer_enclave_identity)
-{
-    if(!peer_enclave_identity)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    if(peer_enclave_identity->isv_prod_id != 0 || !(peer_enclave_identity->attributes.flags & SGX_FLAGS_INITTED))
-        // || peer_enclave_identity->attributes.xfrm !=3)// || peer_enclave_identity->mr_signer != xx //TODO: To be hardcoded with values to check
-    {
-        return ENCLAVE_TRUST_ERROR;
-    }
-    else
-    {
-        return SUCCESS;
-    }
-}
-
-//Dispatch function that calls the approriate enclave function based on the function id
-//Each enclave can have its own way of dispatching the calls from other enclave
-extern "C" uint32_t enclave_to_enclave_call_dispatcher(char* decrypted_data,
-                                                       size_t decrypted_data_length,
-                                                       char** resp_buffer,
-                                                       size_t* resp_length)
-{
-    ms_in_msg_exchange_t *ms;
-    uint32_t (*fn1)(ms_in_msg_exchange_t *ms, size_t, char**, size_t*);
-    if(!decrypted_data || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    ms = (ms_in_msg_exchange_t *)decrypted_data;
-    if(ms->target_fn_id >= func_table.num_funcs)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    fn1 = (uint32_t (*)(ms_in_msg_exchange_t*, size_t, char**, size_t*))func_table.table[ms->target_fn_id];
-    return fn1(ms, decrypted_data_length, resp_buffer, resp_length);
-}
-
-//Operates on the input secret and generates the output secret
-uint32_t get_message_exchange_response(uint32_t inp_secret_data)
-{
-    uint32_t secret_response;
-
-    //User should use more complex encryption method to protect their secret, below is just a simple example
-    secret_response = inp_secret_data & 0x11111111;
-
-    return secret_response;
-
-}
-
-//Generates the response from the request message
-extern "C" uint32_t message_exchange_response_generator(char* decrypted_data,
-                                              char** resp_buffer,
-                                               size_t* resp_length)
-{
-    ms_in_msg_exchange_t *ms;
-    uint32_t inp_secret_data;
-    uint32_t out_secret_data;
-    if(!decrypted_data || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    ms = (ms_in_msg_exchange_t *)decrypted_data;
-
-    if(umarshal_message_exchange_request(&inp_secret_data,ms) != SUCCESS)
-        return ATTESTATION_ERROR;
-
-    out_secret_data = get_message_exchange_response(inp_secret_data);
-
-    if(marshal_message_exchange_response(resp_buffer, resp_length, out_secret_data) != SUCCESS)
-        return MALLOC_ERROR;
-
-    return SUCCESS;
-
-}
-
-static uint32_t e2_foo1(uint32_t var1, uint32_t var2)
-{
-    return(var1 + var2);
-}
-
-//Function which is executed on request from the source enclave
-static uint32_t e2_foo1_wrapper(ms_in_msg_exchange_t *ms,
-                    size_t param_lenth,
-                    char** resp_buffer,
-                    size_t* resp_length)
-{
-    UNUSED(param_lenth);
-
-    uint32_t var1,var2,ret;
-    if(!ms || !resp_length)
-    {
-        return INVALID_PARAMETER_ERROR;
-    }
-    if(unmarshal_input_parameters_e2_foo1(&var1, &var2, ms) != SUCCESS)
-        return ATTESTATION_ERROR;
-
-    ret = e2_foo1(var1, var2);
-
-    if(marshal_retval_and_output_parameters_e2_foo1(resp_buffer, resp_length, ret) != SUCCESS )
-        return MALLOC_ERROR; //can set resp buffer to null here
-
-    return SUCCESS;
-}

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave2/Enclave2.edl

@@ -1,43 +0,0 @@
-/*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in
- *     the documentation and/or other materials provided with the
- *     distribution.
- *   * Neither the name of Intel Corporation nor the names of its
- *     contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-enclave {
-    include "sgx_eid.h"
-    from "../LocalAttestationCode/LocalAttestationCode.edl" import *;
-    from "sgx_tstdc.edl" import *;
-    trusted{
-              public uint32_t test_create_session(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-            public uint32_t test_enclave_to_enclave_call(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-            public uint32_t test_message_exchange(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-            public uint32_t test_close_session(sgx_enclave_id_t src_enclave_id, sgx_enclave_id_t dest_enclave_id);
-    };
-};

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave2/Enclave2.lds

@@ -1,10 +0,0 @@
-Enclave2.so
-{
-    global:
-        g_global_data_sim;
-        g_global_data;
-        enclave_entry;
-        g_peak_heap_used;
-    local:
-        *;
-};