79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/* hmac.c
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*
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* Copyright (C) 2006-2021 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#include <wolfssl/options.h>
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#include <wolfssl/wolfcrypt/wc_port.h>
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#include <wolfssl/wolfcrypt/port/caam/wolfcaam.h>
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#include <stdio.h>
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int main(int argc, char** argv)
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{
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int ret, i;
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Hmac hmac;
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byte hash[WC_SHA256_DIGEST_SIZE];
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const byte key[] = "Jefe";
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const byte input[] = "what do ya want for nothing?";
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const char expected[] =
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"\x5b\xdc\xc1\x46\xbf\x60\x75\x4e\x6a\x04\x24\x26\x08\x95\x75"
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"\xc7\x5a\x00\x3f\x08\x9d\x27\x39\x83\x9d\xec\x58\xb9\x64\xec"
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"\x38\x43";
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word32 inLen = (word32)XSTRLEN((char*)input);
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int outLen = WC_SHA256_DIGEST_SIZE;
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XMEMSET(hash, 0, outLen);
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if (wolfCrypt_Init() != 0) {
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printf("Error initializing wolfSSL library\n");
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return -1;
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}
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/* initialize using WOLFSSL_CAAM_DEVID to use devcrypto code path */
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if (wc_HmacInit(&hmac, NULL, WOLFSSL_CAAM_DEVID) != 0) {
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printf("Issue initializing hmac\n");
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}
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ret = wc_HmacSetKey(&hmac, WC_SHA256, key, (word32)XSTRLEN((char*)key));
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if (ret != 0)
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printf("Issue with set key\n");
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ret = wc_HmacUpdate(&hmac, input, inLen);
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if (ret != 0)
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printf("Issue with update\n");
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ret = wc_HmacFinal(&hmac, hash);
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if (ret != 0)
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printf("Issue with hmac final\n");
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if (XMEMCMP(hash, expected, WC_SHA256_DIGEST_SIZE) != 0)
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printf("result did not match expected result\n");
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wc_HmacFree(&hmac);
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printf("Result : ");
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for (i = 0; i < outLen; i++)
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printf("%02X", hash[i]);
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printf("\n");
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wolfCrypt_Cleanup();
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return 0;
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}
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