1/*
2 * Copyright (C) 2013 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef CryptoKeyAES_h
27#define CryptoKeyAES_h
28
29#include "CryptoAlgorithmIdentifier.h"
30#include "CryptoKey.h"
31#include <wtf/Vector.h>
32
33#if ENABLE(SUBTLE_CRYPTO)
34
35namespace WebCore {
36
37class CryptoKeyAES final : public CryptoKey {
38public:
39    static PassRefPtr<CryptoKeyAES> create(CryptoAlgorithmIdentifier algorithm, const Vector<uint8_t>& key, bool extractable, CryptoKeyUsage usage)
40    {
41        return adoptRef(new CryptoKeyAES(algorithm, key, extractable, usage));
42    }
43    virtual ~CryptoKeyAES();
44
45    static bool isValidAESAlgorithm(CryptoAlgorithmIdentifier);
46
47    static PassRefPtr<CryptoKeyAES> generate(CryptoAlgorithmIdentifier, size_t lengthBits, bool extractable, CryptoKeyUsage);
48
49    virtual CryptoKeyClass keyClass() const override { return CryptoKeyClass::AES; }
50
51    const Vector<uint8_t>& key() const { return m_key; }
52
53private:
54    CryptoKeyAES(CryptoAlgorithmIdentifier, const Vector<uint8_t>& key, bool extractable, CryptoKeyUsage);
55
56    virtual void buildAlgorithmDescription(CryptoAlgorithmDescriptionBuilder&) const override;
57    virtual std::unique_ptr<CryptoKeyData> exportData() const override;
58
59    Vector<uint8_t> m_key;
60};
61
62inline bool isCryptoKeyAES(const CryptoKey& key)
63{
64    return key.keyClass() == CryptoKeyClass::AES;
65}
66
67CRYPTO_KEY_TYPE_CASTS(CryptoKeyAES)
68
69} // namespace WebCore
70
71#endif // ENABLE(SUBTLE_CRYPTO)
72
73
74#endif // CryptoKeyAES_h
75