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#pragma once
27
28#include "CryptoAlgorithmIdentifier.h"
29#include "CryptoKey.h"
30#include "ExceptionOr.h"
31#include <wtf/Function.h>
32#include <wtf/Vector.h>
33
34#if ENABLE(WEB_CRYPTO)
35
36namespace WebCore {
37
38class CryptoAlgorithmParameters;
39
40struct JsonWebKey;
41
42class CryptoKeyAES final : public CryptoKey {
43public:
44 static const int s_length128 = 128;
45 static const int s_length192 = 192;
46 static const int s_length256 = 256;
47
48 static Ref<CryptoKeyAES> create(CryptoAlgorithmIdentifier algorithm, const Vector<uint8_t>& key, bool extractable, CryptoKeyUsageBitmap usage)
49 {
50 return adoptRef(*new CryptoKeyAES(algorithm, key, extractable, usage));
51 }
52 virtual ~CryptoKeyAES();
53
54 static bool isValidAESAlgorithm(CryptoAlgorithmIdentifier);
55
56 static RefPtr<CryptoKeyAES> generate(CryptoAlgorithmIdentifier, size_t lengthBits, bool extractable, CryptoKeyUsageBitmap);
57 static RefPtr<CryptoKeyAES> importRaw(CryptoAlgorithmIdentifier, Vector<uint8_t>&& keyData, bool extractable, CryptoKeyUsageBitmap);
58 using CheckAlgCallback = Function<bool(size_t, const String&)>;
59 static RefPtr<CryptoKeyAES> importJwk(CryptoAlgorithmIdentifier, JsonWebKey&&, bool extractable, CryptoKeyUsageBitmap, CheckAlgCallback&&);
60
61 CryptoKeyClass keyClass() const final { return CryptoKeyClass::AES; }
62
63 const Vector<uint8_t>& key() const { return m_key; }
64 JsonWebKey exportJwk() const;
65
66 static ExceptionOr<size_t> getKeyLength(const CryptoAlgorithmParameters&);
67
68private:
69 CryptoKeyAES(CryptoAlgorithmIdentifier, const Vector<uint8_t>& key, bool extractable, CryptoKeyUsageBitmap);
70 CryptoKeyAES(CryptoAlgorithmIdentifier, Vector<uint8_t>&& key, bool extractable, CryptoKeyUsageBitmap);
71
72 KeyAlgorithm algorithm() const final;
73
74 Vector<uint8_t> m_key;
75};
76
77} // namespace WebCore
78
79SPECIALIZE_TYPE_TRAITS_CRYPTO_KEY(CryptoKeyAES, CryptoKeyClass::AES)
80
81#endif // ENABLE(WEB_CRYPTO)
82