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Initial release of Intel SGX for Linux.

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This release is used in conjunction with the linux-sgx-driver Intial release:
https://github.com/01org/linux-sgx-driver
commit-id: 0e865ce5e6b297a787bcdc12d98bada8174be6d7

Intel-id: 33399

Signed-off-by: Angie Chinchilla <angie.v.chinchilla@intel.com>
This commit is contained in:
Angie Chinchilla
2016-06-23 18:51:53 -04:00
parent ba82cfcbb0
commit 9441de4c38
2767 changed files with 820699 additions and 0 deletions
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135
sdk/tlibcrypto/sgx_sha256.cpp Normal file
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/*
* Copyright (C) 2011-2016 Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "sgx_tcrypto.h"
#include "ippcp.h"
#include "stdlib.h"
#ifndef SAFE_FREE
#define SAFE_FREE(ptr) {if (NULL != (ptr)) {free(ptr); (ptr)=NULL;}}
#endif
/* Allocates and initializes sha256 state
* Parameters:
* Return: sgx_status_t - SGX_SUCCESS or failure as defined in sgx_error.h
* Output: sgx_sha_state_handle_t *p_sha_handle - Pointer to the handle of the SHA256 state */
sgx_status_t sgx_sha256_init(sgx_sha_state_handle_t* p_sha_handle)
{
IppStatus ipp_ret = ippStsNoErr;
IppsHashState* p_temp_state = NULL;
if (p_sha_handle == NULL)
return SGX_ERROR_INVALID_PARAMETER;
int ctx_size = 0;
ipp_ret = ippsHashGetSize(&ctx_size);
if (ipp_ret != ippStsNoErr)
return SGX_ERROR_UNEXPECTED;
p_temp_state = (IppsHashState*)(malloc(ctx_size));
if (p_temp_state == NULL)
return SGX_ERROR_OUT_OF_MEMORY;
ipp_ret = ippsHashInit(p_temp_state, IPP_ALG_HASH_SHA256);
if (ipp_ret != ippStsNoErr)
{
SAFE_FREE(p_temp_state);
*p_sha_handle = NULL;
switch (ipp_ret)
{
case ippStsNullPtrErr:
case ippStsLengthErr: return SGX_ERROR_INVALID_PARAMETER;
default: return SGX_ERROR_UNEXPECTED;
}
}
*p_sha_handle = p_temp_state;
return SGX_SUCCESS;
}
/* Updates sha256 has calculation based on the input message
* Parameters:
* Return: sgx_status_t - SGX_SUCCESS or failure as defined in sgx_error.
* Input: sgx_sha_state_handle_t sha_handle - Handle to the SHA256 state
* uint8_t *p_src - Pointer to the input stream to be hashed
* uint32_t src_len - Length of the input stream to be hashed */
sgx_status_t sgx_sha256_update(const uint8_t *p_src, uint32_t src_len, sgx_sha_state_handle_t sha_handle)
{
if ((p_src == NULL) || (sha_handle == NULL))
{
return SGX_ERROR_INVALID_PARAMETER;
}
IppStatus ipp_ret = ippStsNoErr;
ipp_ret = ippsHashUpdate(p_src, src_len, (IppsHashState*)sha_handle);
switch (ipp_ret)
{
case ippStsNoErr: return SGX_SUCCESS;
case ippStsNullPtrErr:
case ippStsLengthErr: return SGX_ERROR_INVALID_PARAMETER;
default: return SGX_ERROR_UNEXPECTED;
}
}
/* Returns Hash calculation
* Parameters:
* Return: sgx_status_t - SGX_SUCCESS or failure as defined in sgx_error.h
* Input: sgx_sha_state_handle_t sha_handle - Handle to the SHA256 state
* Output: sgx_sha256_hash_t *p_hash - Resultant hash from operation */
sgx_status_t sgx_sha256_get_hash(sgx_sha_state_handle_t sha_handle, sgx_sha256_hash_t *p_hash)
{
if ((sha_handle == NULL) || (p_hash == NULL))
{
return SGX_ERROR_INVALID_PARAMETER;
}
IppStatus ipp_ret = ippStsNoErr;
ipp_ret = ippsHashGetTag((Ipp8u*)p_hash, SGX_SHA256_HASH_SIZE, (IppsHashState*)sha_handle);
switch (ipp_ret)
{
case ippStsNoErr: return SGX_SUCCESS;
case ippStsNullPtrErr:
case ippStsLengthErr: return SGX_ERROR_INVALID_PARAMETER;
default: return SGX_ERROR_UNEXPECTED;
}
}
/* Cleans up sha state
* Parameters:
* Return: sgx_status_t - SGX_SUCCESS or failure as defined in sgx_error.h
* Input: sgx_sha_state_handle_t sha_handle - Handle to the SHA256 state */
sgx_status_t sgx_sha256_close(sgx_sha_state_handle_t sha_handle)
{
if (sha_handle == NULL)
{
return SGX_ERROR_INVALID_PARAMETER;
}
SAFE_FREE(sha_handle);
return SGX_SUCCESS;
}