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[Assignment-7] add SGX sample code from VM
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Paul Zinselmeyer 2024-06-29 17:55:44 +02:00
parent 5616ddc4e5
commit ba8e969470
Signed by: pfzetto
GPG key ID: B471A1AF06C895FD
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216
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/.cproject Normal file
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Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/.project Normal file
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<?xml version="1.0" encoding="UTF-8"?>
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73
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/.settings/language.settings.xml Normal file
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<project>
<configuration id="com.intel.sgx.configuration.Sim.Debug" name="Intel(R) SGX Simulation Debug">
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<resource project-relative-path="">
<entry kind="includePath" name="${SGX_SDK}/include">
<flag value="LOCAL"/>
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</resource>
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</extension>
</configuration>
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<resource project-relative-path="">
<entry kind="includePath" name="${SGX_SDK}/include">
<flag value="LOCAL"/>
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</resource>
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</configuration>
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</resource>
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<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>

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/*
* 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 Normal file
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<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>

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/*
* 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 Normal file
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/*
* 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 Normal file
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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 Normal file
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@ -0,0 +1,39 @@
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

222
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/*
* 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
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/*
* 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
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<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
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/*
* 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 Normal file
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/*
* 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 Normal file
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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/Enclave2/Enclave2/Enclave2_private.pem Normal file
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-----BEGIN RSA PRIVATE KEY-----
MIIG4gIBAAKCAYEAroOogvsj/fZDZY8XFdkl6dJmky0lRvnWMmpeH41Bla6U1qLZ
AmZuyIF+mQC/cgojIsrBMzBxb1kKqzATF4+XwPwgKz7fmiddmHyYz2WDJfAjIveJ
ZjdMjM4+EytGlkkJ52T8V8ds0/L2qKexJ+NBLxkeQLfV8n1mIk7zX7jguwbCG1Pr
nEMdJ3Sew20vnje+RsngAzdPChoJpVsWi/K7cettX/tbnre1DL02GXc5qJoQYk7b
3zkmhz31TgFrd9VVtmUGyFXAysuSAb3EN+5VnHGr0xKkeg8utErea2FNtNIgua8H
ONfm9Eiyaav1SVKzPHlyqLtcdxH3I8Wg7yqMsaprZ1n5A1v/levxnL8+It02KseD
5HqV4rf/cImSlCt3lpRg8U5E1pyFQ2IVEC/XTDMiI3c+AR+w2jSRB3Bwn9zJtFlW
KHG3m1xGI4ck+Lci1JvWWLXQagQSPtZTsubxTQNx1gsgZhgv1JHVZMdbVlAbbRMC
1nSuJNl7KPAS/VfzAgEDAoIBgHRXxaynbVP5gkO0ug6Qw/E27wzIw4SmjsxG6Wpe
K7kfDeRskKxESdsA/xCrKkwGwhcx1iIgS5+Qscd1Yg+1D9X9asd/P7waPmWoZd+Z
AhlKwhdPsO7PiF3e1AzHhGQwsUTt/Y/aSI1MpHBvy2/s1h9mFCslOUxTmWw0oj/Q
ldIEgWeNR72CE2+jFIJIyml6ftnb6qzPiga8Bm48ubKh0kvySOqnkmnPzgh+JBD6
JnBmtZbfPT97bwTT+N6rnPqOOApvfHPf15kWI8yDbprG1l4OCUaIUH1AszxLd826
5IPM+8gINLRDP1MA6azECPjTyHXhtnSIBZCyWSVkc05vYmNXYUNiXWMajcxW9M02
wKzFELO8NCEAkaTPxwo4SCyIjUxiK1LbQ9h8PSy4c1+gGP4LAMR8xqP4QKg6zdu9
osUGG/xRe/uufgTBFkcjqBHtK5L5VI0jeNIUAgW/6iNbYXjBMJ0GfauLs+g1VsOm
WfdgXzsb9DYdMa0OXXHypmV4GwKBwQDUwQj8RKJ6c8cT4vcWCoJvJF00+RFL+P3i
Gx2DLERxRrDa8AVGfqaCjsR+3vLgG8V/py+z+dxZYSqeB80Qeo6PDITcRKoeAYh9
xlT3LJOS+k1cJcEmlbbO2IjLkTmzSwa80fWexKu8/Xv6vv15gpqYl1ngYoqJM3pd
vzmTIOi7MKSZ0WmEQavrZj8zK4endE3v0eAEeQ55j1GImbypSf7Idh7wOXtjZ7WD
Dg6yWDrri+AP/L3gClMj8wsAxMV4ZR8CgcEA0fzDHkFa6raVOxWnObmRoDhAtE0a
cjUj976NM5yyfdf2MrKy4/RhdTiPZ6b08/lBC/+xRfV3xKVGzacm6QjqjZrUpgHC
0LKiZaMtccCJjLtPwQd0jGQEnKfMFaPsnhOc5y8qVkCzVOSthY5qhz0XNotHHFmJ
gffVgB0iqrMTvSL7IA2yqqpOqNRlhaYhNl8TiFP3gIeMtVa9rZy31JPgT2uJ+kfo
gV7sdTPEjPWZd7OshGxWpT6QfVDj/T9T7L6tAoHBAI3WBf2DFvxNL2KXT2QHAZ9t
k3imC4f7U+wSE6zILaDZyzygA4RUbwG0gv8/TJVn2P/Eynf76DuWHGlaiLWnCbSz
Az2DHBQBBaku409zDQym3j1ugMRjzzSQWzJg0SIyBH3hTmnYcn3+Uqcp/lEBvGW6
O+rsXFt3pukqJmIV8HzLGGaLm62BHUeZf3dyWm+i3p/hQAL7Xvu04QW70xuGqdr5
afV7p5eaeQIJXyGQJ0eylV/90+qxjMKiB1XYg6WYvwKBwQCL/ddpgOdHJGN8uRom
e7Zq0Csi3hGheMKlKbN3vcxT5U7MdyHtTZZOJbTvxKNNUNYH/8uD+PqDGNneb29G
BfGzvI3EASyLIcGZF3OhKwZd0jUrWk2y7Vhob91jwp2+t73vdMbkKyI4mHOuXvGv
fg95si9oO7EBT+Oqvhccd2J+F1IVXncccYnF4u5ZGWt5lLewN/pVr7MjjykeaHqN
t+rfnQam2psA6fL4zS2zTmZPzR2tnY8Y1GBTi0Ko1OKd1HMCgcAb5cB/7/AQlhP9
yQa04PLH9ygQkKKptZp7dy5WcWRx0K/hAHRoi2aw1wZqfm7VBNu2SLcs90kCCCxp
6C5sfJi6b8NpNbIPC+sc9wsFr7pGo9SFzQ78UlcWYK2Gu2FxlMjonhka5hvo4zvg
WxlpXKEkaFt3gLd92m/dMqBrHfafH7VwOJY2zT3WIpjwuk0ZzmRg5p0pG/svVQEH
NZmwRwlopysbR69B/n1nefJ84UO50fLh5s5Zr3gBRwbWNZyzhXk=
-----END RSA PRIVATE KEY-----

213
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/*
* 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
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/*
* 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/Enclave2/Enclave3/Enclave3.config.xml Normal file
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<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>

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/*
* 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/Enclave2/Enclave3/Enclave3.edl Normal file
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/*
* 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/Enclave3/Enclave3.lds Normal file
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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/Enclave2/Enclave3/Enclave3_private.pem Normal file
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-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

223
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Enclave3/Utility_E3.cpp Normal file
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/*
* 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/Enclave2/Enclave3/Utility_E3.h Normal file
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/*
* 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/Enclave2/Include/dh_session_protocol.h Normal file
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/*
* 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

760
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/LocalAttestationCode/EnclaveMessageExchange.cpp Normal file
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/*
* 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;
// for exchange report
// ATTESTATION_STATUS status = SUCCESS;
sgx_dh_session_enclave_identity_t initiator_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 responder
ocall_print_string("[ECALL] Initializing the session as session responder...\n");
status = sgx_dh_init_session(SGX_DH_SESSION_RESPONDER, &sgx_dh_session);
if(SGX_SUCCESS != status)
{
return status;
}
//get a new SessionID
ocall_print_string("[ECALL] Getting a new SessionID\n");
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
ocall_print_string("[ECALL] Generating message1 that will be passed to session initiator\n");
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>(0, *session_info));
// pass session id and msg1 to shared memory
// ocall_print_string("Entering session_request_ocall for IPC\n");
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;
}
// starts report exchange
//first retrieve msg2 from initiator
status = exchange_report_ocall(&retstatus, src_enclave_id, dest_enclave_id, &dh_msg2, NULL, session_id);
dh_msg3.msg3_body.additional_prop_length = 0;
//Process message 2 from source enclave and obtain message 3
ocall_print_string("[ECALL] Processing message2 from Enclave1(Initiator) and obtain message3\n");
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;
return status;
}
//Verify source enclave's trust
ocall_print_string("[ECALL] Verifying Enclave1(Initiator)'s trust\n");
if(verify_peer_enclave_trust(&initiator_identity) != SUCCESS)
{
return INVALID_SESSION;
}
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;
}
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 )
{
ocall_print_string("Testing session_request()\n");
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;
}

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/*
* 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

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/*
* 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, [in, out] sgx_dh_msg1_t *dh_msg1,[in, 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, out] sgx_dh_msg2_t *dh_msg2, [in, 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);
};
};

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/*
* 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
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/*
* 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

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#
# 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/Enclave2/README.txt Normal file
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@ -0,0 +1,29 @@
---------------------------
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

200
Assignment 7 - SGX Hands-on/SGX101_sample_code-master/ProcessLocalAttestation/Enclave2/Untrusted_LocalAttestation/UntrustedEnclaveMessageExchange.cpp Normal file
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/*
* 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;
extern sgx_enclave_id_t e1_enclave_id;
//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;
// printf("[OCALL IPC] Generating msg1 and session_id for Enclave1\n");
// for session_id
printf("[OCALL IPC] Passing SessionID to shared memory for Enclave1\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(tmp_session_id, session_id, sizeof(uint32_t));
// for msg1
printf("[OCALL IPC] Passing message1 to shared memory for Enclave1\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(tmp_msg1, dh_msg1, sizeof(sgx_dh_msg1_t));
shmdt(tmp_msg1);
shmdt(tmp_session_id);
// let enclave1 to receive msg1
printf("[OCALL IPC] Waiting for Enclave1 to process SessionID and message1...\n");
sleep(5);
if (ret == SGX_SUCCESS)
return (ATTESTATION_STATUS)status;
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;
if (dh_msg3 == NULL)
{
// get msg2 from Enclave1
printf("[OCALL IPC] Message2 should be ready\n");
printf("[OCALL IPC] Retrieving message2 from shared memory\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(dh_msg2, tmp_msg2, sizeof(sgx_dh_msg2_t));
shmdt(tmp_msg2);
}
// ret = Enclave1_exchange_report(src_enclave_id, &status, 0, dh_msg2, dh_msg3, session_id);
else
{
// pass msg3 to shm for Enclave
printf("[OCALL IPC] Passing message3 to shared memory for Enclave1\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(tmp_msg3, dh_msg3, sizeof(sgx_dh_msg3_t));
shmdt(tmp_msg3);
// wait for Enclave1 to process msg3
printf("[OCALL IPC] Waiting for Enclave1 to process message3...\n");
sleep(5);
}
if (ret == SGX_SUCCESS)
return (ATTESTATION_STATUS)status;
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/Enclave2/Untrusted_LocalAttestation/UntrustedEnclaveMessageExchange.h Normal file
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@ -0,0 +1,74 @@
/*
* 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