mirror of
https://github.com/guanzhi/GmSSL.git
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132 lines
4.4 KiB
C
132 lines
4.4 KiB
C
/* ====================================================================
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* Copyright (c) 2016 The GmSSL Project. 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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* 1. 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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*
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* 2. 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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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the GmSSL Project.
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* (http://gmssl.org/)"
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*
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* 4. The name "GmSSL Project" must not be used to endorse or promote
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* products derived from this software without prior written
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* permission. For written permission, please contact
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* guanzhi1980@gmail.com.
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*
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* 5. Products derived from this software may not be called "GmSSL"
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* nor may "GmSSL" appear in their names without prior written
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* permission of the GmSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the GmSSL Project
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* (http://gmssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE GmSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES
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* LOSS OF USE, DATA, OR PROFITS OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <openssl/err.h>
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#include <openssl/evp.h>
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#include <openssl/cmac.h>
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#include <openssl/gmsdf.h>
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#include "sdf_lcl.h"
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int SDF_CalculateMAC(
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void *hSessionHandle,
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void *hKeyHandle,
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unsigned int uiAlgID,
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unsigned char *pucIV,
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unsigned char *pucData,
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unsigned int uiDataLength,
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unsigned char *pucMAC,
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unsigned int *puiMACLength)
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{
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int ret = SDR_UNKNOWERR;
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SDF_SESSION *session = (SDF_SESSION *)hSessionHandle;
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SDF_KEY *key = (SDF_KEY *)hKeyHandle;
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CMAC_CTX *ctx = NULL;
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const EVP_CIPHER *cipher;
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size_t siz;
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/* check arguments, omit the useless pucIV in CBC-MAC */
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if (!hSessionHandle || !hKeyHandle || !pucData ||
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!pucMAC || !puiMACLength) {
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SDFerr(SDF_F_SDF_CALCULATEMAC,
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ERR_R_PASSED_NULL_PARAMETER);
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return SDR_UNKNOWERR;
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}
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/* the CBC-MAC API accept size_t input length, but we don't
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* know whether future MAC implementation will change this */
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if (uiDataLength <= 0 || uiDataLength > INT_MAX) {
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SDFerr(SDF_F_SDF_CALCULATEMAC,
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SDF_R_INVALID_INPUT_LENGTH);
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return SDR_UNKNOWERR;
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}
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/* parse arguments */
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if (!(cipher = sdf_get_cipher(hSessionHandle, uiAlgID))) {
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SDFerr(SDF_F_SDF_CALCULATEMAC, SDF_R_INVALID_ALGOR);
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goto end;
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}
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if (key->keylen != EVP_CIPHER_key_length(cipher)) {
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SDFerr(SDF_F_SDF_CALCULATEMAC,
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SDF_R_INVALID_KEY_HANDLE);
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goto end;
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}
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if (*puiMACLength < EVP_CIPHER_block_size(cipher)) {
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SDFerr(SDF_F_SDF_CALCULATEMAC, SDF_R_BUUTER_TOO_SMALL);
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goto end;
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}
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/* generate mac */
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if (!(ctx = CMAC_CTX_new())) {
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SDFerr(SDF_F_SDF_CALCULATEMAC, ERR_R_MALLOC_FAILURE);
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goto end;
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}
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if (!CMAC_Init(ctx, key->key, key->keylen, cipher, session->engine)) {
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SDFerr(SDF_F_SDF_CALCULATEMAC, SDF_R_CMAC_FAILURE);
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goto end;
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}
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if (!CMAC_Update(ctx, pucData, (size_t)uiDataLength)) {
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SDFerr(SDF_F_SDF_CALCULATEMAC, SDF_R_CMAC_FAILURE);
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goto end;
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}
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if (!CMAC_Final(ctx, pucMAC, &siz)) {
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SDFerr(SDF_F_SDF_CALCULATEMAC, SDF_R_CMAC_FAILURE);
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goto end;
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}
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*puiMACLength = (unsigned int)siz;
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ret = SDR_OK;
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end:
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CMAC_CTX_free(ctx);
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return ret;
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}
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