xref: /netbsd-src/sys/crypto/chacha/chacha_impl.h (revision fa79152618fc8fd4c1019d2f19f11c1e3d1b3013)
1 /*	$NetBSD: chacha_impl.h,v 1.1 2020/07/25 22:46:34 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	_SYS_CRYPTO_CHACHA_CHACHA_IMPL_H
30 #define	_SYS_CRYPTO_CHACHA_CHACHA_IMPL_H
31 
32 #ifdef _KERNEL
33 #include <sys/types.h>
34 #include <sys/systm.h>
35 #else
36 #include <stdint.h>
37 #include <string.h>
38 #endif
39 
40 #include <crypto/chacha/chacha.h>
41 
42 struct chacha_impl {
43 	const char *ci_name;
44 	int	(*ci_probe)(void);
45 	void	(*ci_chacha_core)(uint8_t[restrict static CHACHA_CORE_OUTBYTES],
46 		    const uint8_t[static CHACHA_CORE_INBYTES],
47 		    const uint8_t[static CHACHA_CORE_KEYBYTES],
48 		    const uint8_t[static CHACHA_CORE_CONSTBYTES],
49 		    unsigned);
50 	void	(*ci_hchacha)(uint8_t[restrict static HCHACHA_OUTBYTES],
51 		    const uint8_t[static HCHACHA_INBYTES],
52 		    const uint8_t[static HCHACHA_KEYBYTES],
53 		    const uint8_t[static HCHACHA_CONSTBYTES],
54 		    unsigned);
55 	void	(*ci_chacha_stream)(uint8_t *restrict, size_t,
56 		    uint32_t,
57 		    const uint8_t[static CHACHA_STREAM_NONCEBYTES],
58 		    const uint8_t[static CHACHA_STREAM_KEYBYTES],
59 		    unsigned);
60 	void	(*ci_chacha_stream_xor)(uint8_t *, const uint8_t *,
61 		    size_t,
62 		    uint32_t,
63 		    const uint8_t[static CHACHA_STREAM_NONCEBYTES],
64 		    const uint8_t[static CHACHA_STREAM_KEYBYTES],
65 		    unsigned);
66 	void	(*ci_xchacha_stream)(uint8_t *restrict, size_t,
67 		    uint32_t,
68 		    const uint8_t[static XCHACHA_STREAM_NONCEBYTES],
69 		    const uint8_t[static XCHACHA_STREAM_KEYBYTES],
70 		    unsigned);
71 	void	(*ci_xchacha_stream_xor)(uint8_t *, const uint8_t *,
72 		    size_t,
73 		    uint32_t,
74 		    const uint8_t[static XCHACHA_STREAM_NONCEBYTES],
75 		    const uint8_t[static XCHACHA_STREAM_KEYBYTES],
76 		    unsigned);
77 };
78 
79 int	chacha_selftest(const struct chacha_impl *);
80 
81 void	chacha_md_init(const struct chacha_impl *);
82 
83 #endif	/* _SYS_CRYPTO_CHACHA_CHACHA_IMPL_H */
84