1/*	$NetBSD: aes.h,v 1.4 2020/07/25 22:14:35 riastradh Exp $	*/
2
3/*-
4 * Copyright (c) 2020 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#ifndef	_CRYPTO_AES_AES_H
30#define	_CRYPTO_AES_AES_H
31
32#include <sys/types.h>
33#include <sys/cdefs.h>
34
35/*
36 * struct aes
37 *
38 *	Expanded round keys.
39 */
40union aes {
41	uint32_t	aes_rk[60];
42	uint64_t	aes_rk64[30];
43} __aligned(16);
44
45#define	AES_128_NROUNDS	10
46#define	AES_192_NROUNDS	12
47#define	AES_256_NROUNDS	14
48
49struct aesenc {
50	union aes	aese_aes;
51};
52
53struct aesdec {
54	union aes	aesd_aes;
55};
56
57uint32_t aes_setenckey128(struct aesenc *, const uint8_t[static 16]);
58uint32_t aes_setenckey192(struct aesenc *, const uint8_t[static 24]);
59uint32_t aes_setenckey256(struct aesenc *, const uint8_t[static 32]);
60uint32_t aes_setdeckey128(struct aesdec *, const uint8_t[static 16]);
61uint32_t aes_setdeckey192(struct aesdec *, const uint8_t[static 24]);
62uint32_t aes_setdeckey256(struct aesdec *, const uint8_t[static 32]);
63
64void	aes_enc(const struct aesenc *, const uint8_t[static 16],
65	    uint8_t[static 16], uint32_t);
66void	aes_dec(const struct aesdec *, const uint8_t[static 16],
67	    uint8_t[static 16], uint32_t);
68
69#endif	/* _CRYPTO_AES_AES_H */
70