/*

 * Copyright (C) 2017 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, write to the Free Software Foundation,

 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA

 */

#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"

/* verifies whether the sign-data and verify-data APIs

 * operate as expected */

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 raw_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 invalid_raw_data = {

	(void *)

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

	    "\xde\x0f\x3b\x48\x3c\xd9\xae\xa9\x43\x4d",

	20

};

#define tests common_key_tests

#define testfail(fmt, ...) \

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

void doit(void)

{

	gnutls_x509_crt_t crt;

	gnutls_x509_privkey_t privkey;

	gnutls_sign_algorithm_t sign_algo;

	char signature_data[512];

	size_t signature_size;

	gnutls_datum_t signature;

	int ret;

	size_t i;

	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_DSA || tests[i].pk == GNUTLS_PK_EDDSA_ED25519)

			continue;

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

		ret = gnutls_x509_privkey_init(&privkey);

		if (ret < 0)

			testfail("gnutls_pubkey_init\n");

		ret = gnutls_x509_privkey_import(privkey, &tests[i].key, GNUTLS_X509_FMT_PEM);

		if (ret < 0)

			testfail("gnutls_privkey_import_x509\n");

		signature_size = sizeof(signature_data);

		ret = gnutls_x509_privkey_sign_data(privkey, tests[i].digest, tests[i].sign_flags,

						&raw_data, signature_data, &signature_size);

		if (ret < 0)

			testfail("gnutls_x509_privkey_sign_data\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");

		signature.data = (unsigned char*)signature_data;

		signature.size = signature_size;

		ret =

		    gnutls_x509_crt_verify_data2(crt, tests[i].sigalgo, 0, &raw_data,

					      &signature);

		if (ret < 0)

			testfail("gnutls_x509_crt_verify_data2\n");

		/* should fail */

		ret =

		    gnutls_x509_crt_verify_data2(crt, tests[i].sigalgo, 0,

					      &invalid_raw_data,

					      &signature);

		if (ret != GNUTLS_E_PK_SIG_VERIFY_FAILED)

			testfail("gnutls_x509_crt_verify_data2-2 (hashed data)\n");

		sign_algo =

		    gnutls_pk_to_sign(gnutls_x509_crt_get_pk_algorithm

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

		ret =

		    gnutls_x509_crt_verify_data2(crt, sign_algo, 0,

						&raw_data, &signature);

		if (ret < 0)

			testfail("gnutls_x509_crt_verify_data2-1 (hashed data)\n");

		/* should fail */

		ret =

		    gnutls_x509_crt_verify_data2(crt, sign_algo, 0,

						&invalid_raw_data,

						&signature);

		if (ret != GNUTLS_E_PK_SIG_VERIFY_FAILED)

			testfail("gnutls_x509_crt_verify_data2-2 (hashed data)\n");

		gnutls_x509_crt_deinit(crt);

		gnutls_x509_privkey_deinit(privkey);

	}

	gnutls_global_deinit();

}