/*

 * Copyright (C) 2004-2012 Free Software Foundation, Inc.

 * Copyright (C) 2017-2019 Red Hat, Inc.

 *

 * Author: Nikos Mavrogiannopoulos, Simon Josefsson

 *

 * 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 Lesser General Public License

 * along with this program.  If not, see <https://www.gnu.org/licenses/>

 *

 */

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <sys/types.h>

#ifndef _WIN32

# include <netinet/in.h>

# include <sys/socket.h>

# include <arpa/inet.h>

#endif

#include <unistd.h>

#include <gnutls/gnutls.h>

#include <gnutls/x509.h>

#include <gnutls/abstract.h>

#include "common-key-tests.h"

#include "utils.h"

static void tls_log_func(int level, const char *str)

{

	fprintf(stderr, "<%d> %s", level, str);

}

/* sha1 hash of "hello" string */

const gnutls_datum_t sha1_hash_data = {

	(void *)

	    "\xaa\xf4\xc6\x1d\xdc\xc5\xe8\xa2\xda\xbe"

	    "\xde\x0f\x3b\x48\x2c\xd9\xae\xa9\x43\x4d",

	20

};

const gnutls_datum_t sha256_hash_data = {

	(void *)

	    "\x2c\xf2\x4d\xba\x5f\xb0\xa3\x0e\x26\xe8\x3b\x2a\xc5\xb9\xe2\x9e"

	    "\x1b\x16\x1e\x5c\x1f\xa7\x42\x5e\x73\x04\x33\x62\x93\x8b\x98\x24",

	32

};

const gnutls_datum_t sha256_invalid_hash_data = {

	(void *)

	    "\x2c\xf2\x4d\xba\x5f\xb1\xa3\x0e\x26\xe8\x3b\x2a\xc5\xb9\xe2\x9e"

	    "\x1b\x16\x1e\x5c\x1f\xa3\x42\x5e\x73\x04\x33\x62\x93\x8b\x98\x24",

	32

};

const gnutls_datum_t sha1_invalid_hash_data = {

	(void *)

	    "\xaa\xf4\xc6\x1d\xdc\xca\xe8\xa2\xda\xbe"

	    "\xde\x0f\x3b\x48\x2c\xb9\xae\xa9\x43\x4d",

	20

};

const gnutls_datum_t raw_data = {

	(void *) "hello",

	5

};

#define tests common_key_tests

#define testfail(fmt, ...) \

	fail("%s: "fmt, tests[i].name, ##__VA_ARGS__)

void doit(void)

{

	gnutls_x509_privkey_t key;

	gnutls_x509_crt_t crt;

	gnutls_pubkey_t pubkey;

	gnutls_privkey_t privkey;

	gnutls_sign_algorithm_t sign_algo;

	gnutls_datum_t signature;

	gnutls_datum_t signature2;

	int ret;

	size_t i;

	const gnutls_datum_t *hash_data;

	const gnutls_datum_t *invalid_hash_data;

	global_init();

	gnutls_global_set_log_function(tls_log_func);

	if (debug)

		gnutls_global_set_log_level(6);

	for (i = 0; i < sizeof(tests) / sizeof(tests[0]); i++) {

		if (tests[i].pk == GNUTLS_PK_EDDSA_ED25519)

			continue;

		success("testing: %s - %s\n", tests[i].name, gnutls_sign_algorithm_get_name(tests[i].sigalgo));

		if (tests[i].digest == GNUTLS_DIG_SHA1) {

			hash_data = &sha1_hash_data;

			invalid_hash_data = &sha1_invalid_hash_data;

		} else {

			hash_data = &sha256_hash_data;

			invalid_hash_data = &sha256_invalid_hash_data;

		}

		ret = gnutls_x509_privkey_init(&key);

		if (ret < 0)

			testfail("gnutls_x509_privkey_init\n");

		ret =

		    gnutls_x509_privkey_import(key, &tests[i].key,

						GNUTLS_X509_FMT_PEM);

		if (ret < 0)

			testfail("gnutls_x509_privkey_import\n");

		ret = gnutls_pubkey_init(&pubkey);

		if (ret < 0)

			testfail("gnutls_privkey_init\n");

		ret = gnutls_privkey_init(&privkey);

		if (ret < 0)

			testfail("gnutls_pubkey_init\n");

		ret = gnutls_privkey_import_x509(privkey, key, 0);

		if (ret < 0)

			testfail("gnutls_privkey_import_x509\n");

		ret = gnutls_privkey_sign_hash2(privkey, tests[i].sigalgo, 0,

						hash_data, &signature2);

		if (ret < 0)

			testfail("gnutls_privkey_sign_hash\n");

		ret = gnutls_privkey_sign_data2(privkey, tests[i].sigalgo, 0,

						&raw_data, &signature);

		if (ret < 0)

			testfail("gnutls_x509_privkey_sign_hash\n");

		ret = gnutls_x509_crt_init(&crt;;

		if (ret < 0)

			testfail("gnutls_x509_crt_init\n");

		ret =

		    gnutls_x509_crt_import(crt, &tests[i].cert,

					   GNUTLS_X509_FMT_PEM);

		if (ret < 0)

			testfail("gnutls_x509_crt_import\n");

		ret = gnutls_pubkey_import_x509(pubkey, crt, 0);

		if (ret < 0)

			testfail("gnutls_x509_pubkey_import\n");

		ret =

		    gnutls_pubkey_verify_hash2(pubkey, tests[i].sigalgo, GNUTLS_VERIFY_ALLOW_SIGN_WITH_SHA1, hash_data,

					      &signature);

		if (ret < 0)

			testfail("gnutls_x509_pubkey_verify_hash2\n");

		/* Test functionality of GNUTLS_VERIFY_DISABLE_CA_SIGN (see issue #754) */

		ret =

		    gnutls_pubkey_verify_hash2(pubkey, tests[i].sigalgo, GNUTLS_VERIFY_DISABLE_CA_SIGN, hash_data,

					      &signature);

		if (ret < 0)

			testfail("gnutls_x509_pubkey_verify_hash2 with GNUTLS_VERIFY_DISABLE_CA_SIGN\n");

		ret =

		    gnutls_pubkey_verify_hash2(pubkey, tests[i].sigalgo, GNUTLS_VERIFY_ALLOW_SIGN_WITH_SHA1, hash_data,

					      &signature2);

		if (ret < 0)

			testfail("gnutls_x509_pubkey_verify_hash-1 (hashed data)\n");

		/* should fail */

		ret =

		    gnutls_pubkey_verify_hash2(pubkey, tests[i].sigalgo,

					       GNUTLS_VERIFY_ALLOW_SIGN_WITH_SHA1,

					       invalid_hash_data,

					       &signature2);

		if (ret != GNUTLS_E_PK_SIG_VERIFY_FAILED)

			testfail("gnutls_x509_pubkey_verify_hash-2 (hashed data)\n");

		sign_algo =

		    gnutls_pk_to_sign(gnutls_pubkey_get_pk_algorithm

				      (pubkey, NULL), tests[i].digest);

		ret =

		    gnutls_pubkey_verify_hash2(pubkey, sign_algo, GNUTLS_VERIFY_ALLOW_SIGN_WITH_SHA1,

						hash_data, &signature2);

		if (ret < 0)

			testfail("gnutls_x509_pubkey_verify_hash2-1 (hashed data)\n");

		/* should fail */

		ret =

		    gnutls_pubkey_verify_hash2(pubkey, sign_algo, GNUTLS_VERIFY_ALLOW_SIGN_WITH_SHA1,

						invalid_hash_data,

						&signature2);

		if (ret != GNUTLS_E_PK_SIG_VERIFY_FAILED)

			testfail("gnutls_x509_pubkey_verify_hash2-2 (hashed data)\n");

		/* test the raw interface */

		gnutls_free(signature.data);

		signature.data = NULL;

		if (gnutls_pubkey_get_pk_algorithm(pubkey, NULL) ==

		    GNUTLS_PK_RSA) {

			ret =

			    gnutls_privkey_sign_hash2(privkey,

						     tests[i].sigalgo,

						     GNUTLS_PRIVKEY_SIGN_FLAG_TLS1_RSA,

						     hash_data,

						     &signature);

			if (ret < 0)

				testfail("gnutls_privkey_sign_hash: %s\n",

				     gnutls_strerror(ret));

			ret =

			    gnutls_pubkey_verify_hash2(pubkey, tests[i].sigalgo,

							GNUTLS_PUBKEY_VERIFY_FLAG_TLS1_RSA,

							hash_data,

							&signature);

			if (ret < 0)

				testfail("gnutls_pubkey_verify_hash-3 (raw hashed data)\n");

			gnutls_free(signature.data);

			/* test the legacy API */

			ret =

			    gnutls_privkey_sign_raw_data(privkey, 0,

							 hash_data,

							 &signature);

			if (ret < 0)

				testfail("gnutls_privkey_sign_raw_data: %s\n",

				     gnutls_strerror(ret));

			ret =

			    gnutls_pubkey_verify_hash2(pubkey, sign_algo,

							GNUTLS_PUBKEY_VERIFY_FLAG_TLS1_RSA,

							hash_data,

							&signature);

			if (ret < 0)

				testfail("gnutls_pubkey_verify_hash-4 (legacy raw hashed data)\n");

		}

		gnutls_free(signature.data);

		gnutls_free(signature2.data);

		gnutls_x509_privkey_deinit(key);

		gnutls_x509_crt_deinit(crt);

		gnutls_privkey_deinit(privkey);

		gnutls_pubkey_deinit(pubkey);

	}

	gnutls_global_deinit();

}