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184 lines
5 KiB
C
184 lines
5 KiB
C
/*-
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* Copyright (c) 2012 The University of Oslo
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* Copyright (c) 2012-2016 Dag-Erling Smørgrav
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* 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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* 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "cryb/impl.h"
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <cryb/test.h>
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#if WITH_OPENSSL
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#include <openssl/evp.h>
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#include <openssl/hmac.h>
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#include <openssl/sha.h>
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#define HMAC_SHA256_MAC_LEN SHA256_DIGEST_LENGTH
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static void
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t_hmac_sha256_complete(const void *key, size_t keylen,
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const void *msg, size_t msglen, uint8_t *mac)
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{
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HMAC_CTX ctx;
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HMAC_CTX_init(&ctx);
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HMAC_Init_ex(&ctx, key, keylen, EVP_sha256(), NULL);
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HMAC_Update(&ctx, msg, msglen);
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HMAC_Final(&ctx, mac, NULL);
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HMAC_CTX_cleanup(&ctx);
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}
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#else
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#include <cryb/sha256.h>
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#include <cryb/hmac.h>
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#define t_hmac_sha256_complete(key, keylen, msg, msglen, mac) \
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hmac_sha256_complete(key, keylen, msg, msglen, mac)
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#endif
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/*
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* Test vectors from NIST CSRC
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* http://csrc.nist.gov/groups/ST/toolkit/examples.html
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*/
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static struct t_vector {
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const char *desc;
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const uint8_t *key;
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size_t keylen;
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const char *msg;
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const uint8_t mac[HMAC_SHA256_MAC_LEN];
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} t_hmac_sha256_vectors[] = {
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{
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"zero-length key, zero-length message",
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t_zero,
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0,
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"",
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{
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0xb6, 0x13, 0x67, 0x9a, 0x08, 0x14, 0xd9, 0xec,
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0x77, 0x2f, 0x95, 0xd7, 0x78, 0xc3, 0x5f, 0xc5,
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0xff, 0x16, 0x97, 0xc4, 0x93, 0x71, 0x56, 0x53,
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0xc6, 0xc7, 0x12, 0x14, 0x42, 0x92, 0xc5, 0xad,
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},
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},
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{
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"NIST CSRC example 1 (64-byte key)",
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t_seq8,
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64,
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"Sample message for keylen=blocklen",
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{
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0x8b, 0xb9, 0xa1, 0xdb, 0x98, 0x06, 0xf2, 0x0d,
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0xf7, 0xf7, 0x7b, 0x82, 0x13, 0x8c, 0x79, 0x14,
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0xd1, 0x74, 0xd5, 0x9e, 0x13, 0xdc, 0x4d, 0x01,
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0x69, 0xc9, 0x05, 0x7b, 0x13, 0x3e, 0x1d, 0x62,
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},
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},
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{
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"NIST CSRC example 2 (32-byte key)",
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t_seq8,
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32,
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"Sample message for keylen<blocklen",
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{
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0xa2, 0x8c, 0xf4, 0x31, 0x30, 0xee, 0x69, 0x6a,
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0x98, 0xf1, 0x4a, 0x37, 0x67, 0x8b, 0x56, 0xbc,
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0xfc, 0xbd, 0xd9, 0xe5, 0xcf, 0x69, 0x71, 0x7f,
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0xec, 0xf5, 0x48, 0x0f, 0x0e, 0xbd, 0xf7, 0x90,
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},
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},
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{
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"NIST CSRC example 3 (100-byte key)",
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t_seq8,
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100,
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/* yes, the text should say keylen>blocklen */
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"Sample message for keylen=blocklen",
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{
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0xbd, 0xcc, 0xb6, 0xc7, 0x2d, 0xde, 0xad, 0xb5,
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0x00, 0xae, 0x76, 0x83, 0x86, 0xcb, 0x38, 0xcc,
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0x41, 0xc6, 0x3d, 0xbb, 0x08, 0x78, 0xdd, 0xb9,
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0xc7, 0xa3, 0x8a, 0x43, 0x1b, 0x78, 0x37, 0x8d,
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},
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},
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{
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"NIST CSRC example 4 (49-byte key)",
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t_seq8,
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49,
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"Sample message for keylen<blocklen, with truncated tag",
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{
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0x27, 0xa8, 0xb1, 0x57, 0x83, 0x9e, 0xfe, 0xac,
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0x98, 0xdf, 0x07, 0x0b, 0x33, 0x1d, 0x59, 0x36,
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0x18, 0xdd, 0xb9, 0x85, 0xd4, 0x03, 0xc0, 0xc7,
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0x86, 0xd2, 0x3b, 0x5d, 0x13, 0x2e, 0x57, 0xc7,
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},
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},
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};
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/*
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* Unit test: compute the HMAC signature of the specified string with the
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* specified key and compare it to the expected result.
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*/
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static int
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t_hmac_sha256_vector(char **desc CRYB_UNUSED, void *arg)
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{
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struct t_vector *vector = (struct t_vector *)arg;
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uint8_t mac[HMAC_SHA256_MAC_LEN];
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t_hmac_sha256_complete(vector->key, vector->keylen,
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(const uint8_t *)vector->msg, strlen(vector->msg),
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mac);
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return (t_compare_mem(vector->mac, mac, HMAC_SHA256_MAC_LEN));
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}
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/***************************************************************************
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* Boilerplate
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*/
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static int
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t_prepare(int argc, char *argv[])
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{
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int i, n;
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(void)argc;
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(void)argv;
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n = sizeof t_hmac_sha256_vectors / sizeof t_hmac_sha256_vectors[0];
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for (i = 0; i < n; ++i)
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t_add_test(t_hmac_sha256_vector, &t_hmac_sha256_vectors[i],
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"%s", t_hmac_sha256_vectors[i].desc);
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return (0);
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}
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int
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main(int argc, char *argv[])
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{
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t_main(t_prepare, NULL, argc, argv);
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}
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