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256 lines
6.5 KiB
C
256 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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* Author: Dag-Erling Smørgrav <des@des.no>
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* Sponsor: the University of Oslo
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*
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* $Cryb$
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*/
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#include "cryb/impl.h"
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#include <err.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 "t.h"
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#if WITH_RSAREF
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#include <rsaref.h>
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#define MD2_DIGEST_LEN 16
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static void
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t_md2_complete(const void *msg, size_t msglen, uint8_t *digest)
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{
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MD2_CTX ctx;
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MD2Init(&ctx);
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MD2Update(&ctx, (unsigned char *)(uintptr_t)msg, msglen);
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MD2Final(digest, &ctx);
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}
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#else
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#include <cryb/md2.h>
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#define t_md2_complete(msg, msglen, digest) \
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md2_complete(msg, msglen, digest)
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#endif
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/*
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* Test vectors from RFC 1319
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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[MD2_DIGEST_LEN];
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} t_md2_vectors[] = {
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{
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"",
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{
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0x83, 0x50, 0xe5, 0xa3, 0xe2, 0x4c, 0x15, 0x3d,
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0xf2, 0x27, 0x5c, 0x9f, 0x80, 0x69, 0x27, 0x73,
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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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0x32, 0xec, 0x01, 0xec, 0x4a, 0x6d, 0xac, 0x72,
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0xc0, 0xab, 0x96, 0xfb, 0x34, 0xc0, 0xb5, 0xd1,
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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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0xda, 0x85, 0x3b, 0x0d, 0x3f, 0x88, 0xd9, 0x9b,
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0x30, 0x28, 0x3a, 0x69, 0xe6, 0xde, 0xd6, 0xbb,
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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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0xab, 0x4f, 0x49, 0x6b, 0xfb, 0x2a, 0x53, 0x0b,
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0x21, 0x9f, 0xf3, 0x30, 0x31, 0xfe, 0x06, 0xb0,
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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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0x4e, 0x8d, 0xdf, 0xf3, 0x65, 0x02, 0x92, 0xab,
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0x5a, 0x41, 0x08, 0xc3, 0xaa, 0x47, 0x94, 0x0b,
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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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0xda, 0x33, 0xde, 0xf2, 0xa4, 0x2d, 0xf1, 0x39,
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0x75, 0x35, 0x28, 0x46, 0xc3, 0x03, 0x38, 0xcd,
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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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0xd5, 0x97, 0x6f, 0x79, 0xd8, 0x3d, 0x3a, 0x0d,
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0xc9, 0x80, 0x6c, 0x3c, 0x66, 0xf3, 0xef, 0xd8,
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}
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},
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};
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/*
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* Unit test: compute the MD2 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_md2_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[MD2_DIGEST_LEN];
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t_md2_complete(vector->msg, strlen(vector->msg), digest);
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if (memcmp(digest, vector->digest, MD2_DIGEST_LEN) != 0) {
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t_verbose("expected ");
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t_verbose_hex(vector->digest, MD2_DIGEST_LEN);
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t_verbose("\n");
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t_verbose("got ");
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t_verbose_hex(digest, MD2_DIGEST_LEN);
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t_verbose("\n");
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return (0);
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}
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return (1);
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}
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#if !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_md2_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[MD2_DIGEST_LEN];
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md2_ctx ctx;
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int i, len;
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md2_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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md2_update(&ctx, vector->msg + i, 5);
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md2_update(&ctx, vector->msg + i, len - i);
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md2_final(&ctx, digest);
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return (memcmp(digest, vector->digest, MD2_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 MD2 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_md2_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[MD2_DIGEST_LEN];
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char *msg, *comment;
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size_t msglen = *(size_t *)arg;
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if ((msg = calloc(1, msglen)) == NULL)
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err(1, "calloc()");
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clock_gettime(CLOCK_MONOTONIC_PRECISE, &ts);
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for (int i = 0; i < T_PERF_ITERATIONS; ++i)
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t_md2_complete(msg, msglen, digest);
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clock_gettime(CLOCK_MONOTONIC_PRECISE, &te);
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free(msg);
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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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asprintf(&comment, "%zu bytes: %d iterations in %'lu ns",
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msglen, T_PERF_ITERATIONS, ns);
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if (comment == NULL)
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err(1, "asprintf()");
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*desc = comment;
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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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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_md2_vectors / sizeof t_md2_vectors[0];
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for (i = 0; i < n; ++i)
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t_add_test(t_md2_vector, &t_md2_vectors[i],
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"RFC 1321 test vector %d", i + 1);
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#if !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_md2_short_updates, &t_md2_vectors[6],
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"multiple short updates");
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#endif
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if (getenv("CRYB_PERFTEST")) {
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static size_t one = 1, thousand = 1000, million = 1000000;
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t_add_test(t_md2_perf, &one,
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"performance test (1 byte)");
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t_add_test(t_md2_perf, &thousand,
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"performance test (1,000 bytes)");
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t_add_test(t_md2_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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void
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t_cleanup(void)
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{
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}
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