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// macclient - client interface to CSSM sign/verify mac contexts
21//
22#ifndef _H_CDSA_CLIENT_MACCLIENT
23#define _H_CDSA_CLIENT_MACCLIENT  1
24
25#include <security_cdsa_client/cspclient.h>
26#include <security_cdsa_client/keyclient.h>
27
28namespace Security
29{
30
31namespace CssmClient
32{
33
34//
35// A signing/verifying mac context
36//
37class MacContext : public Context
38{
39public:
40	MacContext(const CSP &csp, CSSM_ALGORITHMS alg)
41		: Context(csp, alg) { }
42
43	// preliminary interface
44	Key key() const { assert(mKey); return mKey; }
45	void key(const Key &k) { mKey = k; set(CSSM_ATTRIBUTE_KEY, mKey); }
46
47protected:
48	void activate();
49	Key mKey;
50};
51
52
53class GenerateMac : public MacContext
54{
55public:
56	GenerateMac(const CSP &csp, CSSM_ALGORITHMS alg) : MacContext(csp, alg) { }
57
58	// integrated
59	void sign(const CssmData &data, CssmData &mac) { sign(&data, 1, mac); }
60	void sign(const CssmData *data, uint32 count, CssmData &mac);
61
62	// staged
63	void init(); // Optional
64	void sign(const CssmData &data) { sign(&data, 1); }
65	void sign(const CssmData *data, uint32 count);
66	void operator () (CssmData &mac);
67	CssmData operator () () { CssmData mac; (*this)(mac); return mac; }
68};
69
70class VerifyMac : public MacContext
71{
72public:
73	VerifyMac(const CSP &csp, CSSM_ALGORITHMS alg) : MacContext(csp, alg) { }
74
75	// integrated
76	void verify(const CssmData &data, const CssmData &mac) { verify(&data, 1, mac); }
77	void verify(const CssmData *data, uint32 count, const CssmData &mac);
78
79	// staged
80	void init(); // Optional
81	void verify(const CssmData &data) { verify(&data, 1); }
82	void verify(const CssmData *data, uint32 count);
83	void operator () (const CssmData &mac);
84};
85
86} // end namespace CssmClient
87
88} // end namespace Security
89
90#endif // _H_CDSA_CLIENT_MACCLIENT
91