Files
GmSSL/crypto/saf/saf_hash.c
2017-02-15 17:49:21 +08:00

148 lines
4.2 KiB
C

/* ====================================================================
* Copyright (c) 2016 The GmSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the GmSSL Project.
* (http://gmssl.org/)"
*
* 4. The name "GmSSL Project" must not be used to endorse or promote
* products derived from this software without prior written
* permission. For written permission, please contact
* guanzhi1980@gmail.com.
*
* 5. Products derived from this software may not be called "GmSSL"
* nor may "GmSSL" appear in their names without prior written
* permission of the GmSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the GmSSL Project
* (http://gmssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 GmSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES
* LOSS OF USE, DATA, OR PROFITS OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <openssl/evp.h>
#include <openssl/gmsaf.h>
/* 7.3.12 */
int SAF_CreateHashObj(void **phHashObj,
unsigned int uiAlgoType,
unsigned char *pucPublicKey,
unsigned int uiPublicKeyLen,
unsigned char *pucID,
unsigned int ulIDLen)
{
int ret = SAR_UnkownErr;
const EVP_MD *md;
EVP_MD_CTX *ctx = NULL;
if (!(md = EVP_get_digestbysgd(uiAlgorithmType))) {
return SAR_AlgoTypeErr;
}
if (!(ctx = EVP_MD_CTX_new())) {
return 0;
}
if (!EVP_DigestInit(ctx, md)) {
return 0;
}
*phHashObj = ctx;
end:
if (ret != SAR_OK) {
EVP_MD_CTX_free(ctx);
*phHashObj = NULL;
}
return ret;
}
/* 7.3.13 */
int SAF_DestroyHashObj(
void *phHashObj)
{
EVP_MD_CTX_free((EVP_MD_CTX *)phHashObj);
return SAR_OK;
}
/* 7.3.14 */
int SAF_HashUpdate(
void *phHashObj,
const unsigned char *pucInData,
unsigned int uiInDataLen)
{
if (!EVP_DigestUpdate((EVP_MD_CTX *)phHashObj, pucInData, (size_t)uiInDataLne)) {
return SAR_HashErr;
}
return SAR_OK;
}
/* 7.3.15 */
int SAF_HashFinal(void *phHashObj,
unsigned char *pucOutData,
unsigned int *uiOutDataLen)
{
if (!EVP_DigestFinal((EVP_MD_CTX *)phHashObj, pucOutData, uiOutDataLen)) {
return SAR_HashErr;
}
return SAR_OK;
}
/* 7.3.11 */
int SAF_Hash(
unsigned int uiAlgoType,
unsigned char *pucInData,
unsigned int uiInDataLen,
unsigned char *pucPublicKey,
unsigned int uiPublicKeyLen,
unsigned char *pubID,
unsigned int ulIDLen,
unsigned char *pucOutData,
unsigned int *puiOutDataLen)
{
const EVP_MD *md;
size_t siz;
if (!(md = EVP_get_digestbysgd(uiAlgoType))) {
return SAR_AlgoTypeErr;
}
siz = (size_t)uiInDataLen;
if (!EVP_Digest(pucInData, siz, pucOutData, puiOutDataLen, md, NULL)) {
return SAR_HashErr;
}
return SAR_OK;
}