/*- * Copyright (c) 2012 The University of Oslo * Copyright (c) 2012-2014 Dag-Erling Smørgrav * 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. The name of the author may not be used to endorse or promote * products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS 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 AUTHOR OR 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. * * Author: Dag-Erling Smørgrav * Sponsor: the University of Oslo * * $Cryb$ */ #include "cryb/impl.h" #include #include #include #include #include #include #include "t.h" #if WITH_OPENSSL #include #define MD5_DIGEST_LEN MD5_DIGEST_LENGTH static void t_md5_complete(const void *msg, size_t msglen, uint8_t *digest) { MD5_CTX ctx; MD5_Init(&ctx); MD5_Update(&ctx, msg, msglen); MD5_Final(digest, &ctx); } #elif WITH_RSAREF #include #define MD5_DIGEST_LEN 16 static void t_md5_complete(const void *msg, size_t msglen, uint8_t *digest) { MD5_CTX ctx; MD5Init(&ctx); MD5Update(&ctx, (unsigned char *)(uintptr_t)msg, msglen); MD5Final(digest, &ctx); } #else #include #define t_md5_complete(msg, msglen, digest) \ md5_complete(msg, msglen, digest) #endif /* * Test vectors from RFC 1321 */ static struct t_vector { const char *msg; const uint8_t digest[MD5_DIGEST_LEN]; } t_md5_vectors[] = { { "", { 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04, 0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e, } }, { "a", { 0x0c, 0xc1, 0x75, 0xb9, 0xc0, 0xf1, 0xb6, 0xa8, 0x31, 0xc3, 0x99, 0xe2, 0x69, 0x77, 0x26, 0x61, } }, { "abc", { 0x90, 0x01, 0x50, 0x98, 0x3c, 0xd2, 0x4f, 0xb0, 0xd6, 0x96, 0x3f, 0x7d, 0x28, 0xe1, 0x7f, 0x72, } }, { "message digest", { 0xf9, 0x6b, 0x69, 0x7d, 0x7c, 0xb7, 0x93, 0x8d, 0x52, 0x5a, 0x2f, 0x31, 0xaa, 0xf1, 0x61, 0xd0, } }, { "abcdefghijklmnopqrstuvwxyz", { 0xc3, 0xfc, 0xd3, 0xd7, 0x61, 0x92, 0xe4, 0x00, 0x7d, 0xfb, 0x49, 0x6c, 0xca, 0x67, 0xe1, 0x3b, } }, { "ABCDEFGHIJKLMNOPQRSTUVWXYZ" "abcdefghijklmnopqrstuvwxyz" "0123456789", { 0xd1, 0x74, 0xab, 0x98, 0xd2, 0x77, 0xd9, 0xf5, 0xa5, 0x61, 0x1c, 0x2c, 0x9f, 0x41, 0x9d, 0x9f, } }, { "1234567890123456789012345678901234567890" "1234567890123456789012345678901234567890", { 0x57, 0xed, 0xf4, 0xa2, 0x2b, 0xe3, 0xc9, 0x55, 0xac, 0x49, 0xda, 0x2e, 0x21, 0x07, 0xb6, 0x7a, } }, }; /* * Unit test: compute the MD5 sum of the specified string and compare it * to the expected result. */ static int t_md5_vector(char **desc CRYB_UNUSED, void *arg) { struct t_vector *vector = (struct t_vector *)arg; uint8_t digest[MD5_DIGEST_LEN]; t_md5_complete(vector->msg, strlen(vector->msg), digest); if (memcmp(digest, vector->digest, MD5_DIGEST_LEN) != 0) { t_verbose("expected "); t_verbose_hex(vector->digest, MD5_DIGEST_LEN); t_verbose("\n"); t_verbose("got "); t_verbose_hex(digest, MD5_DIGEST_LEN); t_verbose("\n"); return (0); } return (1); } #ifdef BENCHMARKS /* * Performance test: measure the time spent computing the MD5 sum of a * message of the specified length. */ #define T_PERF_ITERATIONS 1000 static int t_md5_perf(char **desc, void *arg) { struct timespec ts, te; unsigned long ns; uint8_t digest[MD5_DIGEST_LEN]; char *msg, *comment; size_t msglen = *(size_t *)arg; if ((msg = calloc(1, msglen)) == NULL) err(1, "calloc()"); clock_gettime(CLOCK_MONOTONIC_PRECISE, &ts); for (int i = 0; i < T_PERF_ITERATIONS; ++i) t_md5_complete(msg, msglen, digest); clock_gettime(CLOCK_MONOTONIC_PRECISE, &te); free(msg); ns = te.tv_sec * 1000000000LU + te.tv_nsec; ns -= ts.tv_sec * 1000000000LU + ts.tv_nsec; asprintf(&comment, "%zu bytes: %d iterations in %'lu ns", msglen, T_PERF_ITERATIONS, ns); if (comment == NULL) err(1, "asprintf()"); *desc = comment; return (1); } #endif #if !defined(WITH_OPENSSL) && !defined(WITH_RSAREF) /* * Various corner cases and error conditions */ static int t_md5_short_updates(char **desc CRYB_UNUSED, void *arg) { struct t_vector *vector = (struct t_vector *)arg; uint8_t digest[MD5_DIGEST_LEN]; md5_ctx ctx; int i, len; md5_init(&ctx); len = strlen(vector->msg); for (i = 0; i + 5 < len; i += 5) md5_update(&ctx, vector->msg + i, 5); md5_update(&ctx, vector->msg + i, len - i); md5_final(&ctx, digest); return (memcmp(digest, vector->digest, MD5_DIGEST_LEN) == 0); } #endif /*************************************************************************** * Boilerplate */ int t_prepare(int argc, char *argv[]) { int i, n; (void)argc; (void)argv; n = sizeof t_md5_vectors / sizeof t_md5_vectors[0]; for (i = 0; i < n; ++i) t_add_test(t_md5_vector, &t_md5_vectors[i], "RFC 1321 test vector %d", i + 1); #if !defined(WITH_OPENSSL) && !defined(WITH_RSAREF) /* * Run test vector 7 (which is 80 characters long) 5 characters at * a time. This tests a) appending data to an underfull block and * b) appending more data to an underfull block than it has room * for (since 64 % 5 != 0). Test vector 7 already exercised the * code path for computing a block directly from source (without * copying it in), and all the test vectors except vector 1 * exercised the general case of copying a small amount of data in * without crossing the block boundary. */ t_add_test(t_md5_short_updates, &t_md5_vectors[6], "multiple short updates"); #endif #ifdef BENCHMARKS static size_t one = 1, thousand = 1000, million = 1000000; t_add_test(t_md5_perf, &one, "performance test (1 byte)"); t_add_test(t_md5_perf, &thousand, "performance test (1,000 bytes)"); t_add_test(t_md5_perf, &million, "performance test (1,000,000 bytes)"); #endif return (0); } void t_cleanup(void) { }