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Test rsa operations

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@19206 ec53bebd-3082-4978-b11e-865c3cabbd6b
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Love Hörnquist Åstrand
2006-12-04 21:33:05 +00:00
parent 49c442c958
commit c50d6599af
1 changed files with 241 additions and 0 deletions
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lib/des/test_rsa.c Normal file
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/*
* Copyright (c) 2006 Kungliga Tekniska H<>gskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef RCSID
RCSID("$Id$");
#endif
#include <stdio.h>
#include <roken.h>
#include <getarg.h>
#include <engine.h>
#include <evp.h>
static void
check_rsa(const unsigned char *in, size_t len, RSA *rsa, int padding)
{
unsigned char *res, *res2;
int keylen;
res = malloc(RSA_size(rsa));
if (res == NULL)
errx(1, "res: ENOMEM");
res2 = malloc(RSA_size(rsa));
if (res2 == NULL)
errx(1, "res2: ENOMEM");
/* signing */
keylen = RSA_private_encrypt(len, in, res, rsa, padding);
if (keylen <= 0)
errx(1, "failed to private encrypt: %d", (int)len, (int)keylen);
if (keylen > RSA_size(rsa))
errx(1, "keylen > RSA_size(rsa)");
keylen = RSA_public_decrypt(keylen, res, res2, rsa, padding);
if (keylen <= 0)
errx(1, "failed to public decrypt: %d", (int)keylen);
if (keylen != len)
errx(1, "output buffer not same length: %d", (int)keylen);
if (memcmp(res2, in, len) != 0)
errx(1, "string not the same after decryption");
/* encryption */
keylen = RSA_public_encrypt(len, in, res, rsa, padding);
if (keylen <= 0)
errx(1, "failed to public encrypt: %d", (int)keylen);
if (keylen > RSA_size(rsa))
errx(1, "keylen > RSA_size(rsa)");
keylen = RSA_private_decrypt(keylen, res, res2, rsa, padding);
if (keylen <= 0)
errx(1, "failed to private decrypt: %d", (int)keylen);
if (keylen != len)
errx(1, "output buffer not same length: %d", (int)keylen);
if (memcmp(res2, in, len) != 0)
errx(1, "string not the same after decryption");
free(res);
free(res2);
}
/*
*
*/
static int version_flag;
static int help_flag;
static char *rsa_key;
static char *id_flag;
static struct getargs args[] = {
{ "id", 0, arg_string, &id_flag,
"selects the engine id", "engine-id" },
{ "key", 0, arg_string, &rsa_key,
"rsa key file", NULL },
{ "version", 0, arg_flag, &version_flag,
"print version", NULL },
{ "help", 0, arg_flag, &help_flag,
NULL, NULL }
};
static void
usage (int ret)
{
arg_printusage (args,
sizeof(args)/sizeof(*args),
NULL,
"filename.so");
exit (ret);
}
int
main(int argc, char **argv)
{
ENGINE *engine = NULL;
int i, idx = 0;
RSA *rsa;
setprogname(argv[0]);
if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &idx))
usage(1);
if (help_flag)
usage(0);
if(version_flag){
print_version(NULL);
exit(0);
}
argc -= idx;
argv += idx;
OpenSSL_add_all_algorithms();
if (argc == 0) {
OpenSSL_add_all_algorithms();
ENGINE_load_builtin_engines();
engine = ENGINE_by_id("builtin");
} else {
engine = ENGINE_by_dso(argv[0], id_flag);
}
if (engine == NULL)
errx(1, "ENGINE_by_dso failed");
if (ENGINE_get_RSA(engine) == NULL)
return 77;
printf("rsa %s\n", ENGINE_get_RSA(engine)->name);
if (rsa_key == NULL)
errx(1, "missing rsa key flag!");
{
unsigned char buf[1024 * 4];
const unsigned char *p;
size_t size;
FILE *f;
f = fopen(rsa_key, "r");
if (f == NULL)
err(1, "could not open file %s", rsa_key);
size = fread(buf, 1, sizeof(buf), f);
if (size == 0)
err(1, "failed to read file %s", rsa_key);
if (size == sizeof(buf))
err(1, "key too long in file %s!", rsa_key);
fclose(f);
p = buf;
rsa = d2i_RSAPrivateKey(NULL, &p, size);
if (rsa == NULL)
err(1, "failed to parse key in file %s", rsa_key);
RSA_set_method(rsa, ENGINE_get_RSA(engine));
}
{
const unsigned char sha1[20] = {
0x6d, 0x33, 0xf9, 0x40, 0x75, 0x5b, 0x4e, 0xc5, 0x90, 0x35,
0x48, 0xab, 0x75, 0x02, 0x09, 0x76, 0x9a, 0xb4, 0x7d, 0x6b
};
check_rsa(sha1, sizeof(sha1), rsa, RSA_PKCS1_PADDING);
}
printf("sha1\n");
for (i = 0; i < 512; i++) {
unsigned char sha1[20];
RAND_bytes(sha1, sizeof(sha1));
check_rsa(sha1, sizeof(sha1), rsa, RSA_PKCS1_PADDING);
}
printf("des3\n");
for (i = 0; i < 512; i++) {
unsigned char des3[21];
RAND_bytes(des3, sizeof(des3));
check_rsa(des3, sizeof(des3), rsa, RSA_PKCS1_PADDING);
}
printf("aes\n");
for (i = 0; i < 512; i++) {
unsigned char aes[32];
RAND_bytes(aes, sizeof(aes));
check_rsa(aes, sizeof(aes), rsa, RSA_PKCS1_PADDING);
}
RSA_free(rsa);
ENGINE_finish(engine);
return 0;
}