1  /*
 2   * Copyright (c) 2000-2001,2011,2014 Apple 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.cpp 
21  //
22  #include "DigestContext.h"
23  #include <AppleCSPUtils.h>
24  
25  /* 
26   * Just field the expected/required calls from CSPFullPluginSession,
27   * and dispatch them to mDigest.
28   */
29  void DigestContext::init(const Context &context, bool)
30  {
31  	mDigest.digestInit();
32  }
33  
34  void DigestContext::update(const CssmData &data)
35  {
36  	mDigest.digestUpdate((const uint8 *)data.data(), data.length());
37  }
38  
39  void DigestContext::final(CssmData &data)
40  {
41  	data.length(mDigest.digestSizeInBytes());
42  	mDigest.digestFinal((uint8 *)data.data());
43  }
44  
45  CSPFullPluginSession::CSPContext *DigestContext::clone(Allocator &)
46  {
47  	/* first clone the low-level digest object */
48  	DigestObject *newDigest = mDigest.digestClone();
49  	
50  	/* now construct a new context */
51  	return new DigestContext(session(), *newDigest);
52  }
53  
54  size_t DigestContext::outputSize(bool, size_t) 
55  {
56  	return mDigest.digestSizeInBytes();
57  }
58