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66 lines
2.6 KiB
C++
66 lines
2.6 KiB
C++
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/*
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* Copyright (C) 2011-2016 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "sgx_tcrypto.h"
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#include "ippcp.h"
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#include "stdlib.h"
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#ifndef SAFE_FREE
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#define SAFE_FREE(ptr) {if (NULL != (ptr)) {free(ptr); (ptr)=NULL;}}
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#endif
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/* SHA Hashing functions
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* Parameters:
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* Return: sgx_status_t - SGX_SUCCESS or failure as defined sgx_error.h
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* Inputs: uint8_t *p_src - Pointer to input stream to be hashed
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* uint32_t src_len - Length of input stream to be hashed
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* Output: sgx_sha256_hash_t *p_hash - Resultant hash from operation */
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sgx_status_t sgx_sha256_msg(const uint8_t *p_src, uint32_t src_len, sgx_sha256_hash_t *p_hash)
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{
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if ((p_src == NULL) || (p_hash == NULL))
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{
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return SGX_ERROR_INVALID_PARAMETER;
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}
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IppStatus ipp_ret = ippStsNoErr;
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ipp_ret = ippsHashMessage((const Ipp8u *) p_src, src_len, (Ipp8u *)p_hash, IPP_ALG_HASH_SHA256);
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switch (ipp_ret)
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{
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case ippStsNoErr: return SGX_SUCCESS;
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case ippStsMemAllocErr: return SGX_ERROR_OUT_OF_MEMORY;
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case ippStsNullPtrErr:
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case ippStsLengthErr: return SGX_ERROR_INVALID_PARAMETER;
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default: return SGX_ERROR_UNEXPECTED;
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}
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}
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