/*
 * Copyright (c) 2021 - 2021 The GmSSL Project.  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. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the GmSSL Project.
 *    (http://gmssl.org/)"
 *
 * 4. The name "GmSSL Project" must not be used to endorse or promote
 *    products derived from this software without prior written
 *    permission. For written permission, please contact
 *    guanzhi1980@gmail.com.
 *
 * 5. Products derived from this software may not be called "GmSSL"
 *    nor may "GmSSL" appear in their names without prior written
 *    permission of the GmSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the GmSSL Project
 *    (http://gmssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 GmSSL PROJECT OR
 * ITS 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.
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <gmssl/oid.h>
#include <gmssl/x509.h>
#include <gmssl/rand.h>
#include <gmssl/error.h>
#include <gmssl/tls.h>
#include <gmssl/sm3.h>
#include <gmssl/sm4.h>


static int test_tls13_gcm(void)
{

	BLOCK_CIPHER_KEY block_key;
	uint8_t key[16];
	uint8_t iv[12];
	uint8_t seq_num[8] = {0,0,0,0,0,0,0,1};
	int record_type = TLS_record_handshake;
	uint8_t in[40];
	size_t padding_len = 8;
	uint8_t out[256];
	size_t outlen;
	uint8_t buf[256];
	size_t buflen;

	rand_bytes(key, sizeof(key));
	rand_bytes(iv, sizeof(iv));
	rand_bytes(in, sizeof(in));

	memset(out, 1, sizeof(out));
	outlen = 0;
	memset(buf, 1, sizeof(buf));
	buflen = 0;

	if (block_cipher_set_encrypt_key(&block_key, BLOCK_CIPHER_sm4(), key) != 1) {
		error_print();
		return -1;
	}

	if (tls13_gcm_encrypt(&block_key, iv, seq_num, record_type, in, sizeof(in), padding_len, out, &outlen) != 1) {
		error_print();
		return -1;
	}
	if (tls13_gcm_decrypt(&block_key, iv, seq_num, out, outlen, &record_type, buf, &buflen) != 1) {
		error_print();
		return -1;
	}

	if (buflen != sizeof(in)) {
		error_print();
		return -1;
	}
	if (memcmp(in, buf, buflen) != 0) {
		error_print();
		return -1;
	}
	printf("%s() ok\n", __FUNCTION__);
	return 1;
}

int main(void)
{
	if (test_tls13_gcm() != 1) goto err;
	printf("%s all tests passed\n", __FILE__);
	return 0;
err:
	error_print();
	return -1;
}