xref: /freebsd/sys/opencrypto/xform_sha1.c (revision f7c32ed617858bcd22f8d1b03199099d50125721)
1 /*	$OpenBSD: xform.c,v 1.16 2001/08/28 12:20:43 ben Exp $	*/
2 /*-
3  * The authors of this code are John Ioannidis (ji@tla.org),
4  * Angelos D. Keromytis (kermit@csd.uch.gr),
5  * Niels Provos (provos@physnet.uni-hamburg.de) and
6  * Damien Miller (djm@mindrot.org).
7  *
8  * This code was written by John Ioannidis for BSD/OS in Athens, Greece,
9  * in November 1995.
10  *
11  * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
12  * by Angelos D. Keromytis.
13  *
14  * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
15  * and Niels Provos.
16  *
17  * Additional features in 1999 by Angelos D. Keromytis.
18  *
19  * AES XTS implementation in 2008 by Damien Miller
20  *
21  * Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis,
22  * Angelos D. Keromytis and Niels Provos.
23  *
24  * Copyright (C) 2001, Angelos D. Keromytis.
25  *
26  * Copyright (C) 2008, Damien Miller
27  * Copyright (c) 2014 The FreeBSD Foundation
28  * All rights reserved.
29  *
30  * Portions of this software were developed by John-Mark Gurney
31  * under sponsorship of the FreeBSD Foundation and
32  * Rubicon Communications, LLC (Netgate).
33  *
34  * Permission to use, copy, and modify this software with or without fee
35  * is hereby granted, provided that this entire notice is included in
36  * all copies of any software which is or includes a copy or
37  * modification of this software.
38  * You may use this code under the GNU public license if you so wish. Please
39  * contribute changes back to the authors under this freer than GPL license
40  * so that we may further the use of strong encryption without limitations to
41  * all.
42  *
43  * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
44  * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
45  * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
46  * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
47  * PURPOSE.
48  */
49 
50 #include <sys/cdefs.h>
51 __FBSDID("$FreeBSD$");
52 
53 #include <crypto/sha1.h>
54 #include <opencrypto/xform_auth.h>
55 
56 static	void SHA1Init_int(void *);
57 static	int SHA1Update_int(void *, const void *, u_int);
58 static	void SHA1Final_int(uint8_t *, void *);
59 
60 /* Plain hash */
61 const struct auth_hash auth_hash_sha1 = {
62 	.type = CRYPTO_SHA1,
63 	.name = "SHA1",
64 	.hashsize = SHA1_HASH_LEN,
65 	.ctxsize = sizeof(SHA1_CTX),
66 	.blocksize = SHA1_BLOCK_LEN,
67 	.Init = SHA1Init_int,
68 	.Update = SHA1Update_int,
69 	.Final = SHA1Final_int,
70 };
71 
72 /* Authentication instances */
73 const struct auth_hash auth_hash_hmac_sha1 = {
74 	.type = CRYPTO_SHA1_HMAC,
75 	.name = "HMAC-SHA1",
76 	.keysize = SHA1_BLOCK_LEN,
77 	.hashsize = SHA1_HASH_LEN,
78 	.ctxsize = sizeof(SHA1_CTX),
79 	.blocksize = SHA1_BLOCK_LEN,
80 	.Init = SHA1Init_int,
81 	.Update = SHA1Update_int,
82 	.Final = SHA1Final_int,
83 };
84 
85 /*
86  * And now for auth.
87  */
88 static void
89 SHA1Init_int(void *ctx)
90 {
91 	SHA1Init(ctx);
92 }
93 
94 static int
95 SHA1Update_int(void *ctx, const void *buf, u_int len)
96 {
97 	SHA1Update(ctx, buf, len);
98 	return 0;
99 }
100 
101 static void
102 SHA1Final_int(uint8_t *blk, void *ctx)
103 {
104 	SHA1Final(blk, ctx);
105 }
106