mirror of
https://github.com/intel/linux-sgx
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Li, Xun
64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
/*
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* Copyright (C) 2011-2020 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 "se_tcrypto_common.h"
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#include <openssl/sha.h>
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#include <openssl/err.h>
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#include "sgx_tcrypto.h"
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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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sgx_status_t retval = SGX_ERROR_UNEXPECTED;
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do {
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/* generates digest of p_src */
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if (SHA256((const unsigned char *)p_src, src_len, (unsigned char *)p_hash) == NULL) {
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break;
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}
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retval = SGX_SUCCESS;
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} while(0);
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return retval;
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}
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