xref: /freebsd/sys/opencrypto/xform_sha2.c (revision 5c831a5bd61576cacb48b39f8eeb47b92707a355)
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/sha2/sha256.h>
54 #include <crypto/sha2/sha384.h>
55 #include <crypto/sha2/sha512.h>
56 #include <opencrypto/xform_auth.h>
57 
58 static	int SHA256Update_int(void *, const u_int8_t *, u_int16_t);
59 static	int SHA384Update_int(void *, const u_int8_t *, u_int16_t);
60 static	int SHA512Update_int(void *, const u_int8_t *, u_int16_t);
61 
62 /* Authentication instances */
63 struct auth_hash auth_hash_hmac_sha2_256 = {
64 	.type = CRYPTO_SHA2_256_HMAC,
65 	.name = "HMAC-SHA2-256",
66 	.keysize = SHA2_256_HMAC_BLOCK_LEN,
67 	.hashsize = SHA2_256_HASH_LEN,
68 	.ctxsize = sizeof(SHA256_CTX),
69 	.blocksize = SHA2_256_HMAC_BLOCK_LEN,
70 	.Init = (void (*)(void *)) SHA256_Init,
71 	.Update = SHA256Update_int,
72 	.Final = (void (*)(u_int8_t *, void *)) SHA256_Final,
73 };
74 
75 struct auth_hash auth_hash_hmac_sha2_384 = {
76 	.type = CRYPTO_SHA2_384_HMAC,
77 	.name = "HMAC-SHA2-384",
78 	.keysize = SHA2_384_HMAC_BLOCK_LEN,
79 	.hashsize = SHA2_384_HASH_LEN,
80 	.ctxsize = sizeof(SHA384_CTX),
81 	.blocksize = SHA2_384_HMAC_BLOCK_LEN,
82 	.Init = (void (*)(void *)) SHA384_Init,
83 	.Update = SHA384Update_int,
84 	.Final = (void (*)(u_int8_t *, void *)) SHA384_Final,
85 };
86 
87 struct auth_hash auth_hash_hmac_sha2_512 = {
88 	.type = CRYPTO_SHA2_512_HMAC,
89 	.name = "HMAC-SHA2-512",
90 	.keysize = SHA2_512_HMAC_BLOCK_LEN,
91 	.hashsize = SHA2_512_HASH_LEN,
92 	.ctxsize = sizeof(SHA512_CTX),
93 	.blocksize = SHA2_512_HMAC_BLOCK_LEN,
94 	.Init = (void (*)(void *)) SHA512_Init,
95 	.Update = SHA512Update_int,
96 	.Final = (void (*)(u_int8_t *, void *)) SHA512_Final,
97 };
98 
99 /*
100  * And now for auth.
101  */
102 static int
103 SHA256Update_int(void *ctx, const u_int8_t *buf, u_int16_t len)
104 {
105 	SHA256_Update(ctx, buf, len);
106 	return 0;
107 }
108 
109 static int
110 SHA384Update_int(void *ctx, const u_int8_t *buf, u_int16_t len)
111 {
112 	SHA384_Update(ctx, buf, len);
113 	return 0;
114 }
115 
116 static int
117 SHA512Update_int(void *ctx, const u_int8_t *buf, u_int16_t len)
118 {
119 	SHA512_Update(ctx, buf, len);
120 	return 0;
121 }
122