/* $NetBSD: h_arc4.c,v 1.2 2014/01/17 14:16:08 pgoyette Exp $ */

/*-
 * Copyright (c) 2014 The NetBSD Foundation, Inc.
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */

#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>

#include <sys/ioctl.h>
#include <sys/time.h>

#include <crypto/cryptodev.h>

unsigned char key[] = "abcdefgh";
char plaintx[16] = "1234567890123456";
const unsigned char ciphertx[16] = {
	0x21, 0xc6, 0x0d, 0xa5, 0x34, 0x24, 0x8b, 0xce,
	0x95, 0x86, 0x64, 0xb3, 0x66, 0x77, 0x9b, 0x4c
};

int
main(void)
{
	int fd, res;
	struct session_op cs;
	struct crypt_op co;
	unsigned char buf[16];

	fd = open("/dev/crypto", O_RDWR, 0);
	if (fd < 0)
		err(1, "open");
	memset(&cs, 0, sizeof(cs));
	cs.cipher = CRYPTO_ARC4;
	cs.keylen = 8;
	cs.key = key;
	res = ioctl(fd, CIOCGSESSION, &cs);
	if (res < 0)
		err(1, "CIOCGSESSION");

	memset(&co, 0, sizeof(co));
	co.ses = cs.ses;
	co.op = COP_ENCRYPT;
	co.len = sizeof(plaintx);
	co.src = plaintx;
	co.dst = buf;
	co.dst_len = sizeof(buf);
	res = ioctl(fd, CIOCCRYPT, &co);
	if (res < 0)
		err(1, "CIOCCRYPT");

	if (memcmp(co.dst, ciphertx, sizeof(ciphertx)))
		errx(1, "verification failed");

	return 0;
}