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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>.

75
7-SGX_Hands-on/README.md Normal file
View file

@ -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

5
7-SGX_Hands-on/employee_keys/alice_private.pem Normal file
View file

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

4
7-SGX_Hands-on/employee_keys/alice_public.pem Normal file
View file

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

5
7-SGX_Hands-on/employee_keys/bob_private.pem Normal file
View file

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

4
7-SGX_Hands-on/employee_keys/bob_public.pem Normal file
View file

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

5
7-SGX_Hands-on/employee_keys/oskar_private.pem Normal file
View file

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

4
7-SGX_Hands-on/employee_keys/oskar_public.pem Normal file
View file

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

27
7-SGX_Hands-on/flake.lock Normal file
View file

@ -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
}

50
7-SGX_Hands-on/flake.nix Normal file
View file

@ -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;
};
}

66
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/Makefile → 7-SGX_Hands-on/src/Makefile
View file

@ -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, $(CCFLAGS)), -m32)
SGX_ARCH := x86
endif
@ -74,8 +74,8 @@ else
Urts_Library_Name := sgx_urts
endif
App_Cpp_Files := App/App.cpp
App_Include_Paths := -IInclude -IApp -I$(SGX_SDK)/include
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 -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
App_Link_Flags := $(SGX_COMMON_CFLAGS) -L$(SGX_LIBRARY_PATH) -l$(Urts_Library_Name) -lpthread
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 -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 := $(App_C_Files:.c=.o)
App_Name := signatureproxy
App_Name := app
######## Enclave Settings ########
@ -115,8 +116,8 @@ else
endif
Crypto_Library_Name := sgx_tcrypto
Enclave_Cpp_Files := Enclave/Enclave.cpp
Enclave_Include_Paths := -IInclude -IEnclave -I$(SGX_SDK)/include -I$(SGX_SDK)/include/tlibc -I$(SGX_SDK)/include/libcxx
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
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
@cd App && $(SGX_EDGER8R) --untrusted ../Enclave/Enclave.edl --search-path ../Enclave --search-path $(SGX_SDK)/include
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 => $@"
App/Enclave_u.o: App/Enclave_u.c
app/enclave_u.o: app/enclave_u.c
@$(CC) $(App_C_Flags) -c $< -o $@
@echo "CC <= $<"
App/%.o: App/%.cpp
@$(CXX) $(App_Cpp_Flags) -c $< -o $@
@echo "CXX <= $<"
app/%.o: app/%.c
@$(CC) $(App_C_Flags) -c $< -o $@
@echo "CC <= $<"
$(App_Name): App/Enclave_u.o $(App_Cpp_Objects)
@$(CXX) $^ -o $@ $(App_Link_Flags)
$(App_Name): app/enclave_u.o $(App_C_Objects)
@$(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
@cd Enclave && $(SGX_EDGER8R) --trusted ../Enclave/Enclave.edl --search-path ../Enclave --search-path $(SGX_SDK)/include
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 => $@"
Enclave/Enclave_t.o: Enclave/Enclave_t.c
enclave/enclave_t.o: enclave/enclave_t.c
@$(CC) $(Enclave_C_Flags) -c $< -o $@
@echo "CC <= $<"
Enclave/%.o: Enclave/%.cpp
@$(CXX) $(Enclave_Cpp_Flags) -c $< -o $@
@echo "CXX <= $<"
enclave/%.o: enclave/%.c
@$(CC) $(Enclave_C_Flags) -c $< -o $@
@echo "CC <= $<"
$(Enclave_Name): Enclave/Enclave_t.o $(Enclave_Cpp_Objects)
@$(CXX) $^ -o $@ $(Enclave_Link_Flags)
$(Enclave_Name): enclave/enclave_t.o $(Enclave_C_Objects)
@$(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.*

143
7-SGX_Hands-on/src/app/embedded_device.c Normal file
View file

@ -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;
}

23
7-SGX_Hands-on/src/app/embedded_device.h Normal file
View file

@ -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

135
7-SGX_Hands-on/src/app/employee.c Normal file
View file

@ -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);
}

23
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#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

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#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();
}

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#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);
}

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#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

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#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);
}

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#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

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#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);
}

33
7-SGX_Hands-on/src/app/util.h Normal file
View file

@ -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

343
7-SGX_Hands-on/src/enclave/enclave.c Normal file
View file

@ -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);
}

6
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/Enclave/Enclave.config.xml → 7-SGX_Hands-on/src/enclave/enclave.config.xml
View file

@ -1,12 +1,12 @@
<EnclaveConfiguration>
<ProdID>0</ProdID>
<ISVSVN>0</ISVSVN>
<StackMaxSize>0x40000</StackMaxSize>
<HeapMaxSize>0x100000</HeapMaxSize>
<StackMaxSize>0x400000</StackMaxSize>
<HeapMaxSize>0x1000000</HeapMaxSize>
<TCSNum>10</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>
</EnclaveConfiguration>

15
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/Enclave/Enclave.edl → 7-SGX_Hands-on/src/enclave/enclave.edl
View file

@ -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);
};
};
};

113
7-SGX_Hands-on/src/enclave/enclave.h Normal file
View file

@ -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_ */

0
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/Enclave/Enclave.lds → 7-SGX_Hands-on/src/enclave/enclave.lds
View file

0
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/enclave/enclave_private.pem → 7-SGX_Hands-on/src/enclave/enclave_private.pem Executable file → Normal file
View file

16
7-SGX_Hands-on/src/setup Executable file
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@ -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

74
7-SGX_Hands-on/src/simulate Executable file
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@ -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."

252
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/App/App.cpp
View file

@ -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;
}

65
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/App/App.h
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@ -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_ */

57
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/Enclave/Enclave.cpp
View file

@ -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");
}

50
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/Enclave/Enclave.h
View file

@ -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_ */

39
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/HelloEnclave/Enclave/Enclave_private.pem
View file

@ -1,39 +0,0 @@
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

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@ -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

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#
# 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.*

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#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;
}

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

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#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);
}

21
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/app/utils.h
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#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_

12
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/enclave/enclave.config.xml
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@ -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>

403
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/enclave/enclave.cpp
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#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;
}

53
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/enclave/enclave.edl
View file

@ -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);
};
};

15
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/enclave/sealing/sealing.cpp
View file

@ -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);
}

16
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/enclave/sealing/sealing.h
View file

@ -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_

21
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/include/enclave.h
View file

@ -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_

25
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/PasswordWallet/include/wallet.h
View file

@ -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_

216
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/.cproject
View file

@ -1,216 +0,0 @@
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</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>

28
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/.project
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@ -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>

73
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/.settings/language.settings.xml
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@ -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>

150
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/App/App.cpp
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@ -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;
}

12
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Enclave1.config.xml
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@ -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>

367
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Enclave1.cpp
View file

@ -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;
}

43
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Enclave1.edl
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@ -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);
};
};

10
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Enclave1.lds
View file

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

39
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Enclave1_private.pem
View file

@ -1,39 +0,0 @@
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

222
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Utility_E1.cpp
View file

@ -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;
}

65
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave1/Utility_E1.h
View file

@ -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

12
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Enclave2.config.xml
View file

@ -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>

339
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Enclave2.cpp
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@ -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;
}

43
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Enclave2.edl
View file

@ -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);
};
};

10
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Enclave2.lds
View file

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

39
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Enclave2_private.pem
View file

@ -1,39 +0,0 @@
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

213
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Utility_E2.cpp
View file

@ -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;
}

59
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave2/Utility_E2.h
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@ -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

12
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Enclave3.config.xml
View file

@ -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>

366
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Enclave3.cpp
View file

@ -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;
}

42
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Enclave3.edl
View file

@ -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);
};
};

10
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Enclave3.lds
View file

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

39
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Enclave3_private.pem
View file

@ -1,39 +0,0 @@
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

223
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Utility_E3.cpp
View file

@ -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;
}

73
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Enclave3/Utility_E3.h
View file

@ -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

68
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Include/dh_session_protocol.h
View file

@ -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

726
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/LocalAttestationCode/EnclaveMessageExchange.cpp
View file

@ -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;
}

54
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/LocalAttestationCode/EnclaveMessageExchange.h
View file

@ -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

50
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/LocalAttestationCode/LocalAttestationCode.edl
View file

@ -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);
};
};

105
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/LocalAttestationCode/datatypes.h
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@ -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

53
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/LocalAttestationCode/error_codes.h
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@ -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

346
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Makefile
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@ -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.*

29
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/README.txt
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@ -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

194
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Untrusted_LocalAttestation/UntrustedEnclaveMessageExchange.cpp
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@ -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);
}

74
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave1/Untrusted_LocalAttestation/UntrustedEnclaveMessageExchange.h
View file

@ -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

216
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/.cproject
View file

@ -1,216 +0,0 @@
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<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>

28
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/.project
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@ -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>

73
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/.settings/language.settings.xml
View file

@ -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>

151
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/App/App.cpp
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@ -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;
}

12
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Enclave1.config.xml
View file

@ -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>

367
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Enclave1.cpp
View file

@ -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;
}

43
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Enclave1.edl
View file

@ -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);
};
};

10
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Enclave1.lds
View file

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

39
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Enclave1_private.pem
View file

@ -1,39 +0,0 @@
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

222
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Utility_E1.cpp
View file

@ -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;
}

65
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave1/Utility_E1.h
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@ -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

12
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave2/Enclave2.config.xml
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@ -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>

339
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave2/Enclave2.cpp
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@ -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;
}

43
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave2/Enclave2.edl
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@ -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);
};
};

10
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave2/Enclave2.lds
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@ -1,10 +0,0 @@
Enclave2.so
{
global:
g_global_data_sim;
g_global_data;
enclave_entry;
g_peak_heap_used;
local:
*;
};

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