1/*
2 * copyright (c) 2012 apple computer, inc. all rights reserved.
3 *
4 * @apple_osreference_license_header_start@
5 *
6 * this file contains original code and/or modifications of original code
7 * as defined in and that are subject to the apple public source license
8 * version 2.0 (the 'license'). you may not use this file except in
9 * compliance with the license. the rights granted to you under the license
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an apple operating system software license agreement.
14 *
15 * please obtain a copy of the license at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * the original code and all software distributed under the license are
19 * distributed on an 'as is' basis, without warranty of any kind, either
20 * express or implied, and apple hereby disclaims all such warranties,
21 * including without limitation, any warranties of merchantability,
22 * fitness for a particular purpose, quiet enjoyment or non-infringement.
23 * please see the license for the specific language governing rights and
24 * limitations under the license.
25 *
26 * @apple_osreference_license_header_end@
27 */
28
29#ifndef _CRYPTO_SHA2_H__
30#define _CRYPTO_SHA2_H__
31
32#ifdef __cplusplus
33extern "C" {
34#endif
35
36#include <corecrypto/ccsha2.h>
37
38/*** SHA-256/384/512 Various Length Definitions ***********************/
39#define SHA256_BLOCK_LENGTH CCSHA256_BLOCK_SIZE
40#define SHA256_DIGEST_LENGTH CCSHA256_OUTPUT_SIZE
41#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
42#define SHA384_BLOCK_LENGTH CCSHA512_BLOCK_SIZE
43#define SHA384_DIGEST_LENGTH CCSHA384_OUTPUT_SIZE
44#define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
45#define SHA512_BLOCK_LENGTH CCSHA512_BLOCK_SIZE
46#define SHA512_DIGEST_LENGTH CCSHA512_OUTPUT_SIZE
47#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
48
49typedef struct {
50 ccdigest_ctx_decl(CCSHA256_STATE_SIZE, CCSHA256_BLOCK_SIZE, ctx);
51} SHA256_CTX;
52
53typedef struct SHA512_CTX {
54 ccdigest_ctx_decl(CCSHA512_STATE_SIZE, CCSHA512_BLOCK_SIZE, ctx);
55} SHA512_CTX;
56
57typedef SHA512_CTX SHA384_CTX;
58
59/*** SHA-256/384/512 Function Prototypes ******************************/
60
61void SHA256_Init(SHA256_CTX *ctx);
62void SHA256_Update(SHA256_CTX *ctx, const void *data, size_t len);
63void SHA256_Final(void *digest, SHA256_CTX *ctx);
64
65void SHA384_Init(SHA384_CTX *ctx);
66void SHA384_Update(SHA384_CTX *ctx, const void *data, size_t len);
67void SHA384_Final(void *digest, SHA384_CTX *ctx);
68
69void SHA512_Init(SHA512_CTX *ctx);
70void SHA512_Update(SHA512_CTX *ctx, const void *data, size_t len);
71void SHA512_Final(void *digest, SHA512_CTX *ctx);
72
73#ifdef __cplusplus
74}
75#endif /* __cplusplus */
76
77#endif /* _CRYPTO_SHA2_H__ */
78