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/*
* Copyright (C) 2016 Red Hat, Inc.
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* GnuTLS is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuTLS is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GnuTLS. If not, see <https://www.gnu.org/licenses/>.
*/
/* Parts copied from GnuTLS example programs. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <gnutls/gnutls.h>
#include <gnutls/crypto.h>
#include "utils.h"
static void encode(const char *test_name, gnutls_digest_algorithm_t hash,
const gnutls_datum_t * raw, const gnutls_datum_t * expected)
{
int ret;
gnutls_datum_t out;
gnutls_digest_algorithm_t thash;
uint8_t digest[128];
unsigned int digest_size;
ret = gnutls_encode_ber_digest_info(hash, raw, &out);
if (ret < 0) {
fail("%s: gnutls_encode_ber_digest_info: %s\n", test_name,
gnutls_strerror(ret));
exit(1);
}
if (expected->size != out.size) {
hexprint(out.data, out.size);
fail("%s: gnutls_encode_ber_digest_info: output has incorrect size (%d, expected %d)\n", test_name, (int)out.size, expected->size);
exit(1);
}
if (memcmp(expected->data, out.data, out.size) != 0) {
hexprint(out.data, out.size);
fail("%s: gnutls_encode_ber_digest_info: output does not match the expected\n", test_name);
exit(1);
}
digest_size = sizeof(digest);
ret = gnutls_decode_ber_digest_info(&out, &thash, digest, &digest_size);
if (ret < 0) {
fail("%s: gnutls_decode_ber_digest_info: %s\n", test_name,
gnutls_strerror(ret));
exit(1);
}
if (thash != hash) {
fail("%s: gnutls_decode_ber_digest_info: wrong hash, got: %d, expected %d\n", test_name, (int)thash, (int)hash);
exit(1);
}
if (raw->size != digest_size) {
fail("%s: gnutls_decode_ber_digest_info: output has incorrect size (%d, expected %d)\n", test_name, digest_size, raw->size);
exit(1);
}
if (memcmp(raw->data, digest, digest_size) != 0) {
fail("%s: gnutls_decode_ber_digest_info: output does not match the expected\n", test_name);
exit(1);
}
gnutls_free(out.data);
return;
}
static void decode(const char *test_name, gnutls_digest_algorithm_t hash,
const gnutls_datum_t * raw, const gnutls_datum_t * di,
int res)
{
int ret;
uint8_t digest[128];
unsigned digest_size;
gnutls_digest_algorithm_t thash;
digest_size = sizeof(digest);
ret = gnutls_decode_ber_digest_info(di, &thash, digest, &digest_size);
if (res != ret) {
fail("%s: gnutls_decode_ber_digest_info: %s\n", test_name,
gnutls_strerror(ret));
exit(1);
}
if (ret < 0) {
return;
}
if (thash != hash) {
fail("%s: gnutls_decode_ber_digest_info: wrong hash, got: %d, expected %d\n", test_name, (int)thash, (int)hash);
exit(1);
}
if (raw->size != digest_size) {
fail("%s: gnutls_decode_ber_digest_info: output has incorrect size (%d, expected %d)\n", test_name, digest_size, raw->size);
exit(1);
}
if (memcmp(raw->data, digest, digest_size) != 0) {
fail("%s: gnutls_decode_ber_digest_info: output does not match the expected\n", test_name);
exit(1);
}
return;
}
struct encode_tests_st {
const char *name;
gnutls_digest_algorithm_t hash;
const gnutls_datum_t raw;
const gnutls_datum_t di;
};
struct encode_tests_st encode_tests[] = {
{
.name = "rnd1",
.hash = GNUTLS_DIG_SHA1,
.raw = {(void *)
"\xf6\x9a\x46\x8a\x84\x69\x7a\x28\x83\xda\x52\xcd\x60\x2f\x39\x78\xff\xa1\x32\x12",
20},
.di = {(void *)
"\x30\x21\x30\x09\x06\x05\x2b\x0e\x03\x02\x1a\x05\x00\x04\x14\xf6\x9a\x46\x8a\x84\x69\x7a\x28\x83\xda\x52\xcd\x60\x2f\x39\x78\xff\xa1\x32\x12",
35}
},
{
.name = "rnd2",
.hash = GNUTLS_DIG_SHA256,
.raw = {(void *)
"\x0b\x68\xdf\x4b\x27\xac\xc5\xc5\x52\x43\x74\x32\x39\x5c\x1e\xf5\x6a\xe2\x19\x5a\x58\x75\x81\xa5\x6a\xf5\xbf\x98\x85\xe3\xf9\x25",
32},
.di = {(void *)
"\x30\x31\x30\x0d\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x01\x05\x00\x04\x20\x0b\x68\xdf\x4b\x27\xac\xc5\xc5\x52\x43\x74\x32\x39\x5c\x1e\xf5\x6a\xe2\x19\x5a\x58\x75\x81\xa5\x6a\xf5\xbf\x98\x85\xe3\xf9\x25",
51}
}
};
struct decode_tests_st {
const char *name;
gnutls_digest_algorithm_t hash;
const gnutls_datum_t raw;
const gnutls_datum_t di;
int res;
};
struct decode_tests_st decode_tests[] = {
{
.name = "dec-rnd1",
.hash = GNUTLS_DIG_SHA1,
.di = {(void *)
"\x30\x21\x30\x09\x06\x05\x2b\x0e\x03\x02\x1a\x05\x00\x04\x14\xf6\x9a\x46\x8a\x84\x69\x7a\x28\x83\xda\x52\xcd\x60\x2f\x39\x78\xff\xa1\x32\x12",
35},
.raw = {(void *)
"\xf6\x9a\x46\x8a\x84\x69\x7a\x28\x83\xda\x52\xcd\x60\x2f\x39\x78\xff\xa1\x32\x12",
20},
.res = 0,
},
{
.name = "dec-rnd2",
.hash = GNUTLS_DIG_SHA256,
.raw = {(void *)
"\x0b\x68\xdf\x4b\x27\xac\xc5\xc5\x52\x43\x74\x32\x39\x5c\x1e\xf5\x6a\xe2\x19\x5a\x58\x75\x81\xa5\x6a\xf5\xbf\x98\x85\xe3\xf9\x25",
32},
.di = {(void *)
"\x30\x31\x30\x0d\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x01\x05\x00\x04\x20\x0b\x68\xdf\x4b\x27\xac\xc5\xc5\x52\x43\x74\x32\x39\x5c\x1e\xf5\x6a\xe2\x19\x5a\x58\x75\x81\xa5\x6a\xf5\xbf\x98\x85\xe3\xf9\x25",
51},
.res = 0,
},
{
.name = "dec-wrong-tag",
.hash = GNUTLS_DIG_SHA256,
.raw = {(void *)
"\x0b\x68\xdf\x4b\x27\xac\xc5\xc5\x52\x43\x74\x32\x39\x5c\x1e\xf5\x6a\xe2\x19\x5a\x58\x75\x81\xa5\x6a\xf5\xbf\x98\x85\xe3\xf9\x25",
32},
.di = {(void *)
"\x31\x31\x30\x0d\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x01\x05\x00\x04\x20\x0b\x68\xdf\x4b\x27\xac\xc5\xc5\x52\x43\x74\x32\x39\x5c\x1e\xf5\x6a\xe2\x19\x5a\x58\x75\x81\xa5\x6a\xf5\xbf\x98\x85\xe3\xf9\x25",
51},
.res = GNUTLS_E_ASN1_TAG_ERROR},
{
.name = "dec-wrong-der",
.hash = GNUTLS_DIG_SHA256,
.raw = {(void *)
"\x0b\x68\xdf\x4b\x27\xac\xc5\xc5\x52\x43\x74\x32\x39\x5c\x1e\xf5\x6a\xe2\x19\x5a\x58\x75\x81\xa5\x6a\xf5\xbf\x98\x85\xe3\xf9\x25",
32},
.di = {(void *)
"\x30\x31\x30\x0c\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x01\x05\x00\x04\x20\x0b\x68\xdf\x4b\x27\xac\xc5\xc5\x52\x43\x74\x32\x39\x5c\x1e\xf5\x6a\xe2\x19\x5a\x58\x75\x81\xa5\x6a\xf5\xbf\x98\x86\xe3\xf9\x25",
51},
.res = GNUTLS_E_ASN1_DER_ERROR},
{
.name = "dec-wrong-hash",
.hash = GNUTLS_DIG_SHA256,
.raw = {(void *)
"\x0b\x68\xdf\x4b\x27\xac\xc5\xc5\x52\x43\x74\x32\x39\x5c\x1e\xf5\x6a\xe2\x19\x5a\x58\x75\x81\xa5\x6a\xf5\xbf\x98\x85\xe3\xf9\x25",
32},
.di = {(void *)
"\x30\x31\x30\x0d\x06\x09\x61\x86\x48\x01\x65\x03\x04\x02\x01\x05\x00\x04\x20\x0b\x68\xdf\x4b\x27\xac\xc5\xc5\x52\x43\x74\x32\x39\x5c\x1e\xf5\x6a\xe2\x19\x5a\x58\x75\x81\xa5\x6a\xf5\xbf\x98\x86\xe3\xf9\x25",
51},
.res = GNUTLS_E_UNKNOWN_HASH_ALGORITHM},
};
void doit(void)
{
unsigned i;
for (i = 0; i < sizeof(encode_tests) / sizeof(encode_tests[0]); i++) {
encode(encode_tests[i].name, encode_tests[i].hash,
&encode_tests[i].raw, &encode_tests[i].di);
}
for (i = 0; i < sizeof(decode_tests) / sizeof(decode_tests[0]); i++) {
decode(decode_tests[i].name, decode_tests[i].hash,
&decode_tests[i].raw, &decode_tests[i].di,
decode_tests[i].res);
}
}
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