1/*	$NetBSD: aes_impl.h,v 1.2 2020/07/25 22:27:53 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_IMPL_H
30#define	_CRYPTO_AES_AES_IMPL_H
31
32#include <sys/types.h>
33
34struct aesenc;
35struct aesdec;
36
37struct aes_impl {
38	const char *ai_name;
39	int	(*ai_probe)(void);
40	void	(*ai_setenckey)(struct aesenc *, const uint8_t *, uint32_t);
41	void	(*ai_setdeckey)(struct aesdec *, const uint8_t *, uint32_t);
42	void	(*ai_enc)(const struct aesenc *, const uint8_t[static 16],
43		    uint8_t[static 16], uint32_t);
44	void	(*ai_dec)(const struct aesdec *, const uint8_t[static 16],
45		    uint8_t[static 16], uint32_t);
46	void	(*ai_cbc_enc)(const struct aesenc *, const uint8_t[static 16],
47		    uint8_t[static 16], size_t, uint8_t[static 16], uint32_t);
48	void	(*ai_cbc_dec)(const struct aesdec *, const uint8_t[static 16],
49		    uint8_t[static 16], size_t, uint8_t[static 16], uint32_t);
50	void	(*ai_xts_enc)(const struct aesenc *, const uint8_t[static 16],
51		    uint8_t[static 16], size_t, uint8_t[static 16], uint32_t);
52	void	(*ai_xts_dec)(const struct aesdec *, const uint8_t[static 16],
53		    uint8_t[static 16], size_t, uint8_t[static 16], uint32_t);
54	void	(*ai_cbcmac_update1)(const struct aesenc *,
55		    const uint8_t[static 16], size_t, uint8_t[static 16],
56		    uint32_t);
57	void	(*ai_ccm_enc1)(const struct aesenc *,
58		    const uint8_t[static 16], uint8_t[static 16],
59		    size_t, uint8_t[static 32], uint32_t);
60	void	(*ai_ccm_dec1)(const struct aesenc *,
61		    const uint8_t[static 16], uint8_t[static 16],
62		    size_t, uint8_t[static 32], uint32_t);
63};
64
65void	aes_md_init(const struct aes_impl *);
66
67int	aes_selftest(const struct aes_impl *);
68
69/* Internal subroutines dispatched to implementation for AES-CCM.  */
70void	aes_cbcmac_update1(const struct aesenc *, const uint8_t[static 16],
71	    size_t, uint8_t[static 16], uint32_t);
72void	aes_ccm_enc1(const struct aesenc *, const uint8_t[static 16],
73	    uint8_t[static 16], size_t, uint8_t[static 32], uint32_t);
74void	aes_ccm_dec1(const struct aesenc *, const uint8_t[static 16],
75	    uint8_t[static 16], size_t, uint8_t[static 32], uint32_t);
76
77#endif	/* _CRYPTO_AES_AES_IMPL_H */
78