1/*
2 * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
3 *
4 * The contents of this file constitute Original Code as defined in and are
5 * subject to the Apple Public Source License Version 1.2 (the 'License').
6 * You may not use this file except in compliance with the License. Please obtain
7 * a copy of the License at http://www.apple.com/publicsource and read it before
8 * using this file.
9 *
10 * This Original Code and all software distributed under the License are
11 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
12 * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
13 * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
14 * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
15 * specific language governing rights and limitations under the License.
16 */
17
18
19//
20// DigestContext.h
21//
22
23#ifndef	_DIGEST_CONTEXT_H_
24#define _DIGEST_CONTEXT_H_
25
26#include <security_cdsa_utilities/digestobject.h>
27#include "AppleCSPContext.h"
28
29/*
30 * This is just a shim to give AppleCSPContext functionality to a
31 * DigestObject subclass (a reference to which is passed to our constructor).
32 */
33class DigestContext : public AppleCSPContext  {
34public:
35	DigestContext(
36		AppleCSPSession &session,
37		DigestObject &digest) :
38			AppleCSPContext(session), mDigest(digest) { }
39	~DigestContext() { delete &mDigest; }
40
41	void init(const Context &context, bool);
42	void update(const CssmData &data);
43	void final(CssmData &data);
44	CSPFullPluginSession::CSPContext *clone(Allocator &);	// clone internal state
45	size_t outputSize(bool, size_t);
46
47private:
48	DigestObject	&mDigest;
49};
50
51#endif	/* _CRYPTKIT_DIGEST_CONTEXT_H_ */
52