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d8e26bc5bb
All further instances of asprintf() or vasprintf() in our codebase are either in libcryb-test or in individual unit tests, and in all cases, the only consequence of a failed call is that the result will say "no description" instead of either a description of the test or an explanation of how it failed. Therefore, we can simply ignore the problem and cast the call to void to satisfy gcc.
255 lines
6.5 KiB
C
255 lines
6.5 KiB
C
/*-
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* Copyright (c) 2012 The University of Oslo
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* Copyright (c) 2012-2014 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 <sys/types.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <cryb/test.h>
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#if WITH_OPENSSL
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#include <openssl/md5.h>
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#define MD5_DIGEST_LEN MD5_DIGEST_LENGTH
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static void
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t_md5_complete(const void *msg, size_t msglen, uint8_t *digest)
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{
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MD5_CTX ctx;
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MD5_Init(&ctx);
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MD5_Update(&ctx, msg, msglen);
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MD5_Final(digest, &ctx);
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}
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#elif WITH_RSAREF
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#include <rsaref.h>
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#define MD5_DIGEST_LEN 16
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static void
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t_md5_complete(const void *msg, size_t msglen, uint8_t *digest)
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{
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MD5_CTX ctx;
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MD5Init(&ctx);
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MD5Update(&ctx, (unsigned char *)(uintptr_t)msg, msglen);
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MD5Final(digest, &ctx);
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}
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#else
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#include <cryb/md5.h>
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#define t_md5_complete(msg, msglen, digest) \
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md5_complete(msg, msglen, digest)
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#endif
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/*
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* Test vectors from RFC 1321
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*/
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static struct t_vector {
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const char *msg;
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const uint8_t digest[MD5_DIGEST_LEN];
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} t_md5_vectors[] = {
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{
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"",
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{
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0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04,
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0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e,
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}
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},
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{
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"a",
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{
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0x0c, 0xc1, 0x75, 0xb9, 0xc0, 0xf1, 0xb6, 0xa8,
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0x31, 0xc3, 0x99, 0xe2, 0x69, 0x77, 0x26, 0x61,
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}
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},
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{
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"abc",
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{
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0x90, 0x01, 0x50, 0x98, 0x3c, 0xd2, 0x4f, 0xb0,
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0xd6, 0x96, 0x3f, 0x7d, 0x28, 0xe1, 0x7f, 0x72,
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}
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},
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{
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"message digest",
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{
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0xf9, 0x6b, 0x69, 0x7d, 0x7c, 0xb7, 0x93, 0x8d,
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0x52, 0x5a, 0x2f, 0x31, 0xaa, 0xf1, 0x61, 0xd0,
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}
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},
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{
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"abcdefghijklmnopqrstuvwxyz",
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{
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0xc3, 0xfc, 0xd3, 0xd7, 0x61, 0x92, 0xe4, 0x00,
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0x7d, 0xfb, 0x49, 0x6c, 0xca, 0x67, 0xe1, 0x3b,
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}
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},
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{
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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"abcdefghijklmnopqrstuvwxyz"
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"0123456789",
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{
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0xd1, 0x74, 0xab, 0x98, 0xd2, 0x77, 0xd9, 0xf5,
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0xa5, 0x61, 0x1c, 0x2c, 0x9f, 0x41, 0x9d, 0x9f,
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}
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},
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{
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"1234567890123456789012345678901234567890"
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"1234567890123456789012345678901234567890",
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{
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0x57, 0xed, 0xf4, 0xa2, 0x2b, 0xe3, 0xc9, 0x55,
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0xac, 0x49, 0xda, 0x2e, 0x21, 0x07, 0xb6, 0x7a,
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}
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},
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};
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/*
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* Unit test: compute the MD5 sum of the specified string and compare it
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* to the expected result.
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*/
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static int
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t_md5_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 digest[MD5_DIGEST_LEN];
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t_md5_complete(vector->msg, strlen(vector->msg), digest);
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return (t_compare_mem(vector->digest, digest, MD5_DIGEST_LEN));
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}
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#if !defined(WITH_OPENSSL) && !defined(WITH_RSAREF)
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/*
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* Various corner cases and error conditions
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*/
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static int
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t_md5_short_updates(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 digest[MD5_DIGEST_LEN];
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md5_ctx ctx;
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int i, len;
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md5_init(&ctx);
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len = strlen(vector->msg);
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for (i = 0; i + 5 < len; i += 5)
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md5_update(&ctx, vector->msg + i, 5);
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md5_update(&ctx, vector->msg + i, len - i);
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md5_final(&ctx, digest);
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return (memcmp(digest, vector->digest, MD5_DIGEST_LEN) == 0);
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}
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#endif
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/*
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* Performance test: measure the time spent computing the MD5 sum of a
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* message of the specified length.
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*/
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#define T_PERF_ITERATIONS 1000
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static int
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t_md5_perf(char **desc, void *arg)
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{
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struct timespec ts, te;
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unsigned long ns;
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uint8_t digest[MD5_DIGEST_LEN];
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size_t msglen = *(size_t *)arg;
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char msg[msglen];
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clock_gettime(CLOCK_MONOTONIC, &ts);
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for (int i = 0; i < T_PERF_ITERATIONS; ++i)
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t_md5_complete(msg, msglen, digest);
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clock_gettime(CLOCK_MONOTONIC, &te);
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ns = te.tv_sec * 1000000000LU + te.tv_nsec;
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ns -= ts.tv_sec * 1000000000LU + ts.tv_nsec;
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(void)asprintf(desc, "%zu bytes: %d iterations in %'lu ns",
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msglen, T_PERF_ITERATIONS, ns);
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return (1);
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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_md5_vectors / sizeof t_md5_vectors[0];
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for (i = 0; i < n; ++i)
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t_add_test(t_md5_vector, &t_md5_vectors[i],
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"RFC 1321 test vector %d", i + 1);
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#if !defined(WITH_OPENSSL) && !defined(WITH_RSAREF)
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/*
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* Run test vector 7 (which is 80 characters long) 5 characters at
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* a time. This tests a) appending data to an underfull block and
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* b) appending more data to an underfull block than it has room
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* for (since 64 % 5 != 0). Test vector 7 already exercised the
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* code path for computing a block directly from source (without
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* copying it in), and all the test vectors except vector 1
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* exercised the general case of copying a small amount of data in
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* without crossing the block boundary.
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*/
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t_add_test(t_md5_short_updates, &t_md5_vectors[6],
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"multiple short updates");
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#endif
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if (t_str_is_true(getenv("CRYB_PERFTEST"))) {
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static size_t one = 1, thousand = 1000, million = 1000000;
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t_add_test(t_md5_perf, &one,
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"performance test (1 byte)");
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t_add_test(t_md5_perf, &thousand,
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"performance test (1,000 bytes)");
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t_add_test(t_md5_perf, &million,
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"performance test (1,000,000 bytes)");
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}
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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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