xform_sha2.c revision 292963 
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: head/sys/opencrypto/xform_sha2.c 292963 2015-12-30 22:43:07Z allanjude $");
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
58static	int SHA256Update_int(void *, const u_int8_t *, u_int16_t);
59static	int SHA384Update_int(void *, const u_int8_t *, u_int16_t);
60static	int SHA512Update_int(void *, const u_int8_t *, u_int16_t);
61
62/* Authentication instances */
63struct auth_hash auth_hash_hmac_sha2_256 = {
64	CRYPTO_SHA2_256_HMAC, "HMAC-SHA2-256",
65	SHA2_256_HMAC_KEY_LEN, SHA2_256_HASH_LEN, sizeof(SHA256_CTX),
66	SHA2_256_HMAC_BLOCK_LEN,
67	(void (*)(void *)) SHA256_Init, NULL, NULL, SHA256Update_int,
68	(void (*)(u_int8_t *, void *)) SHA256_Final
69};
70
71struct auth_hash auth_hash_hmac_sha2_384 = {
72	CRYPTO_SHA2_384_HMAC, "HMAC-SHA2-384",
73	SHA2_384_HMAC_KEY_LEN, SHA2_384_HASH_LEN, sizeof(SHA384_CTX),
74	SHA2_384_HMAC_BLOCK_LEN,
75	(void (*)(void *)) SHA384_Init, NULL, NULL, SHA384Update_int,
76	(void (*)(u_int8_t *, void *)) SHA384_Final
77};
78
79struct auth_hash auth_hash_hmac_sha2_512 = {
80	CRYPTO_SHA2_512_HMAC, "HMAC-SHA2-512",
81	SHA2_512_HMAC_KEY_LEN, SHA2_512_HASH_LEN, sizeof(SHA512_CTX),
82	SHA2_512_HMAC_BLOCK_LEN,
83	(void (*)(void *)) SHA512_Init, NULL, NULL, SHA512Update_int,
84	(void (*)(u_int8_t *, void *)) SHA512_Final
85};
86
87/*
88 * And now for auth.
89 */
90static int
91SHA256Update_int(void *ctx, const u_int8_t *buf, u_int16_t len)
92{
93	SHA256_Update(ctx, buf, len);
94	return 0;
95}
96
97static int
98SHA384Update_int(void *ctx, const u_int8_t *buf, u_int16_t len)
99{
100	SHA384_Update(ctx, buf, len);
101	return 0;
102}
103
104static int
105SHA512Update_int(void *ctx, const u_int8_t *buf, u_int16_t len)
106{
107	SHA512_Update(ctx, buf, len);
108	return 0;
109}
110