1/*
2 * Copyright (c) 2004 Apple Computer, 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//
26// tempdatabase - temporary (scratch) storage for keys
27//
28// A TempDatabase locally manages keys using the AppleCSP while providing
29// no persistent storage. Keys live until they are no longer referenced in
30// client space, at which point they are destroyed.
31//
32#ifndef _H_TEMPDATABASE
33#define _H_TEMPDATABASE
34
35#include "localdatabase.h"
36
37
38//
39// A TempDatabase is simply a container of (a subclass of) LocalKey.
40// When it dies, all its contents irretrievably vanish. There is no DbCommon
41// or global object; each TempDatabase is completely distinct.
42// Database ACLs are not (currently) supported on TempDatabases.
43//
44class TempDatabase : public LocalDatabase {
45public:
46	TempDatabase(Process &proc);
47
48	const char *dbName() const;
49	bool transient() const;
50
51	RefPointer<Key> makeKey(const CssmKey &newKey, uint32 moreAttributes,
52		const AclEntryPrototype *owner);
53
54	void generateKey(const Context &context,
55		 const AccessCredentials *cred,
56		 const AclEntryPrototype *owner, uint32 usage,
57		 uint32 attrs, RefPointer<Key> &newKey);
58
59protected:
60	void getSecurePassphrase(const Context &context, string &passphrase);
61	void makeSecurePassphraseKey(const Context &context, const AccessCredentials *cred,
62								 const AclEntryPrototype *owner, uint32 usage,
63								 uint32 attrs, RefPointer<Key> &newKey);
64};
65
66#endif //_H_TEMPDATABASE
67