1/* $NetBSD: h_gcm.c,v 1.2 2014/01/17 14:16:08 pgoyette Exp $ */
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <err.h>
30#include <fcntl.h>
31#include <stdio.h>
32#include <string.h>
33
34#include <sys/ioctl.h>
35#include <sys/time.h>
36
37#include <crypto/cryptodev.h>
38
39unsigned char key[20] = { 0 };
40char plaintx[16] = { 0 };
41unsigned char iv[16] = { 0 };
42const unsigned char ciphertx[16] = {
43	0x03, 0x88, 0xda, 0xce, 0x60, 0xb6, 0xa3, 0x92,
44	0xf3, 0x28, 0xc2, 0xb9, 0x71, 0xb2, 0xfe, 0x78
45};
46const unsigned char hash[16] = {
47	0xab, 0x6e, 0x47, 0xd4, 0x2c, 0xec, 0x13, 0xbd,
48	0xf5, 0x3a, 0x67, 0xb2, 0x12, 0x57, 0xbd, 0xdf
49};
50
51int
52main(void)
53{
54	int fd, res;
55	struct session_op cs;
56	struct crypt_op co;
57	unsigned char databuf[16];
58	unsigned char macbuf[16];
59	unsigned char databuf2[16];
60
61	fd = open("/dev/crypto", O_RDWR, 0);
62	if (fd < 0)
63		err(1, "open");
64	memset(&cs, 0, sizeof(cs));
65	cs.mac = CRYPTO_AES_128_GMAC;
66	cs.mackeylen = sizeof(key);
67	cs.mackey = key;
68	cs.cipher = CRYPTO_AES_GCM_16;
69	cs.key = key;
70	cs.keylen = sizeof(key);
71	res = ioctl(fd, CIOCGSESSION, &cs);
72	if (res < 0)
73		err(1, "CIOCGSESSION");
74
75	memset(&co, 0, sizeof(co));
76	memset(databuf, 0, sizeof(databuf));
77	memset(macbuf, 0, sizeof(macbuf));
78	co.ses = cs.ses;
79	co.op = COP_ENCRYPT;
80	co.len = sizeof(plaintx);
81	co.src = plaintx;
82	co.dst = databuf;
83	co.mac = macbuf;
84	co.iv = iv;
85	res = ioctl(fd, CIOCCRYPT, &co);
86	if (res < 0)
87		err(1, "CIOCCRYPT");
88#if 1
89	if (memcmp(co.dst, ciphertx, sizeof(ciphertx)))
90		errx(1, "verification failed");
91	if (memcmp(macbuf, hash, sizeof(hash)))
92		errx(1, "hash failed");
93#else
94	{
95		int i;
96		for (i = 0; i < sizeof(databuf); i++)
97			printf("%02x ", databuf[i]);
98		printf("\n");
99	}
100	{
101		int i;
102		for (i = 0; i < sizeof(macbuf); i++)
103			printf("%02x ", macbuf[i]);
104		printf("\n");
105	}
106#endif
107	memset(databuf2, 0, sizeof(databuf2));
108	memset(macbuf, 0, sizeof(macbuf));
109	co.ses = cs.ses;
110	co.op = COP_DECRYPT;
111	co.len = sizeof(databuf);
112	co.src = databuf;
113	co.dst = databuf2;
114	co.mac = macbuf;
115	co.iv = iv;
116	res = ioctl(fd, CIOCCRYPT, &co);
117	if (res < 0)
118		err(1, "CIOCCRYPT");
119
120	if (memcmp(co.dst, plaintx, sizeof(plaintx)))
121		errx(1, "verification failed");
122	if (memcmp(macbuf, hash, sizeof(hash)))
123		errx(1, "hash failed");
124
125	return 0;
126}
127