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// signclient - client interface to CSSM sign/verify contexts
21//
22#include <security_cdsa_client/signclient.h>
23
24using namespace CssmClient;
25
26
27//
28// Common features of signing and verify contexts
29//
30void SigningContext::activate()
31{
32    StLock<Mutex> _(mActivateMutex);
33	if (!mActive)
34	{
35		check(CSSM_CSP_CreateSignatureContext(attachment()->handle(), mAlgorithm,
36			  cred(), mKey, &mHandle));
37		mActive = true;
38	}
39}
40
41
42//
43// Signing
44//
45void Sign::sign(const CssmData *data, uint32 count, CssmData &signature)
46{
47	unstaged();
48	check(CSSM_SignData(handle(), data, count, mSignOnly, &signature));
49}
50
51void Sign::init()
52{
53	check(CSSM_SignDataInit(handle()));
54	mStaged = true;
55}
56
57void Sign::sign(const CssmData *data, uint32 count)
58{
59	staged();
60	check(CSSM_SignDataUpdate(handle(), data, count));
61}
62
63void Sign::operator () (CssmData &signature)
64{
65	staged();
66	check(CSSM_SignDataFinal(handle(), &signature));
67	mStaged = false;
68}
69
70
71//
72// Verifying
73//
74void Verify::verify(const CssmData *data, uint32 count, const CssmData &signature)
75{
76	unstaged();
77	check(CSSM_VerifyData(handle(), data, count, mSignOnly, &signature));
78}
79
80void Verify::init()
81{
82	check(CSSM_VerifyDataInit(handle()));
83	mStaged = true;
84}
85
86void Verify::verify(const CssmData *data, uint32 count)
87{
88	staged();
89	check(CSSM_VerifyDataUpdate(handle(), data, count));
90}
91
92void Verify::operator () (const CssmData &signature)
93{
94	staged();
95	check(CSSM_VerifyDataFinal(handle(), &signature));
96	mStaged = false;
97}
98