xref: /illumos-gate/usr/src/common/crypto/sha2/sha2_impl.h (revision e8d80663e4f91871f843bb8ad9108dc0b76dfcf3)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_SHA2_IMPL_H
27 #define	_SHA2_IMPL_H
28 
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32 
33 typedef enum {
34 	SHA1_TYPE,
35 	SHA256_TYPE,
36 	SHA384_TYPE,
37 	SHA512_TYPE
38 } sha2_mech_t;
39 
40 #ifdef _KERNEL
41 
42 /*
43  * Context for SHA2 mechanism.
44  */
45 typedef struct sha2_ctx {
46 	sha2_mech_type_t	sc_mech_type;	/* type of context */
47 	SHA2_CTX		sc_sha2_ctx;	/* SHA2 context */
48 } sha2_ctx_t;
49 
50 /*
51  * Context for SHA2 HMAC and HMAC GENERAL mechanisms.
52  */
53 typedef struct sha2_hmac_ctx {
54 	sha2_mech_type_t	hc_mech_type;	/* type of context */
55 	uint32_t		hc_digest_len;	/* digest len in bytes */
56 	SHA2_CTX		hc_icontext;	/* inner SHA2 context */
57 	SHA2_CTX		hc_ocontext;	/* outer SHA2 context */
58 } sha2_hmac_ctx_t;
59 
60 #endif
61 
62 #ifdef	__cplusplus
63 }
64 #endif
65 
66 #endif /* _SHA2_IMPL_H */
67