1/*
2 * Copyright (c) 1999-2001,2005-2008,2012 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 * cryptType.h - CipherSpec and CipherContext structures
26 */
27
28#ifndef _CRYPTTYPE_H_
29#define _CRYPTTYPE_H_ 1
30
31// #include <Security/CipherSuite.h>
32#include "tls_hmac.h"
33#include "tls_hashhmac.h"
34#include "symCipher.h"
35
36#ifdef __cplusplus
37extern "C" {
38#endif
39
40/*
41 * An SSLRecordContext contains four of these - one for each of {read,write} and for
42 * {current, pending}.
43 */
44typedef struct CipherContext
45{
46    const HashHmacReference   	*macRef;			/* HMAC (TLS) or digest (SSL) */
47    const SSLSymmetricCipher  	*symCipher;
48
49    /* this is a context which is reused once per record */
50    HashHmacContext				macCtx;
51    /*
52     * Crypto context (eg: for CommonCrypto-based symmetric ciphers, this will be a CCCryptorRef)
53     */
54    SymCipherContext            cipherCtx;
55
56    /* encrypt or decrypt. needed in CDSASymmInit, may not be needed anymore (TODO)*/
57    uint8_t						encrypting;
58
59    uint64_t          			sequenceNum;
60    uint8_t            			ready;
61
62    /* in SSL2 mode, the macSecret is the same size as the
63     * cipher key - which is 24 bytes in the 3DES case. */
64    uint8_t						macSecret[48 /* SSL_MAX_DIGEST_LEN */];
65} CipherContext;
66
67#ifdef __cplusplus
68}
69#endif
70
71#endif /* _CRYPTTYPE_H_ */
72