1/*
2 * Copyright (c) 1999-2001,2005-2007,2010-2012,2014 Apple Inc. All Rights Reserved.
3 *
4 * @APPLE_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. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24/*
25 * tls_digest.h - HashReference declarations
26 */
27
28#ifndef	_TLS_DIGEST_H_
29#define _TLS_DIGEST_H_	1
30
31#include "sslTypes.h"
32
33#ifdef __cplusplus
34extern "C" {
35#endif
36
37/*
38 * These numbers show up all over the place...might as well hard code 'em once.
39 */
40#define SSL_MD5_DIGEST_LEN      16
41#define SSL_SHA1_DIGEST_LEN     20
42#define SSL_SHA256_DIGEST_LEN	32
43#define SSL_SHA384_DIGEST_LEN	48
44#define SSL_MAX_DIGEST_LEN      48 /* >= SSL_MD5_DIGEST_LEN + SSL_SHA1_DIGEST_LEN */
45
46#define MAX_MAC_PADDING         48	/* MD5 MAC padding size = 48 bytes */
47
48extern const uint8_t SSLMACPad1[], SSLMACPad2[];
49
50typedef int (*HashInit)(SSLBuffer *digestCtx);
51typedef int (*HashUpdate)(SSLBuffer *digestCtx, const SSLBuffer *data);
52/* HashFinal also does HashClose */
53typedef int (*HashFinal)(SSLBuffer *digestCtx, SSLBuffer *digest);
54typedef int (*HashClose)(SSLBuffer *digestCtx);
55typedef int (*HashClone)(const SSLBuffer *src, SSLBuffer *dest);
56
57typedef struct
58{
59    uint32_t    digestSize;
60    uint32_t    macPadSize;
61    uint32_t    contextSize;
62    HashInit    init;
63    HashUpdate  update;
64    HashFinal   final;
65    HashClose	close;
66    HashClone   clone;
67} HashReference;
68
69extern const HashReference SSLHashNull;
70extern const HashReference SSLHashMD5;
71extern const HashReference SSLHashSHA1;
72extern const HashReference SSLHashSHA256;
73extern const HashReference SSLHashSHA384;
74
75
76#ifdef __cplusplus
77}
78#endif
79
80#endif	/* _TLS_DIGEST_H_ */
81