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/*
* Copyright (C) 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "CryptoAlgorithmIdentifier.h"
#include "CryptoKey.h"
#include "ExceptionOr.h"
#include <wtf/Function.h>
#include <wtf/Vector.h>
#if ENABLE(SUBTLE_CRYPTO)
namespace WebCore {
class CryptoAlgorithmParameters;
struct JsonWebKey;
class AesKeyAlgorithm final : public KeyAlgorithm {
public:
AesKeyAlgorithm(const String& name, size_t length)
: KeyAlgorithm(name)
, m_length(length)
{
}
KeyAlgorithmClass keyAlgorithmClass() const final { return KeyAlgorithmClass::AES; }
CryptoAesKeyAlgorithm dictionary() const;
size_t length() const { return m_length; }
private:
size_t m_length;
};
class CryptoKeyAES final : public CryptoKey {
public:
static const int s_length128 = 128;
static const int s_length192 = 192;
static const int s_length256 = 256;
static Ref<CryptoKeyAES> create(CryptoAlgorithmIdentifier algorithm, const Vector<uint8_t>& key, bool extractable, CryptoKeyUsageBitmap usage)
{
return adoptRef(*new CryptoKeyAES(algorithm, key, extractable, usage));
}
virtual ~CryptoKeyAES();
static bool isValidAESAlgorithm(CryptoAlgorithmIdentifier);
static RefPtr<CryptoKeyAES> generate(CryptoAlgorithmIdentifier, size_t lengthBits, bool extractable, CryptoKeyUsageBitmap);
static RefPtr<CryptoKeyAES> importRaw(CryptoAlgorithmIdentifier, Vector<uint8_t>&& keyData, bool extractable, CryptoKeyUsageBitmap);
using CheckAlgCallback = Function<bool(size_t, const String&)>;
static RefPtr<CryptoKeyAES> importJwk(CryptoAlgorithmIdentifier, JsonWebKey&&, bool extractable, CryptoKeyUsageBitmap, CheckAlgCallback&&);
CryptoKeyClass keyClass() const final { return CryptoKeyClass::AES; }
const Vector<uint8_t>& key() const { return m_key; }
JsonWebKey exportJwk() const;
static ExceptionOr<size_t> getKeyLength(const CryptoAlgorithmParameters&);
private:
CryptoKeyAES(CryptoAlgorithmIdentifier, const Vector<uint8_t>& key, bool extractable, CryptoKeyUsageBitmap);
CryptoKeyAES(CryptoAlgorithmIdentifier, Vector<uint8_t>&& key, bool extractable, CryptoKeyUsageBitmap);
std::unique_ptr<KeyAlgorithm> buildAlgorithm() const final;
std::unique_ptr<CryptoKeyData> exportData() const final;
Vector<uint8_t> m_key;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_CRYPTO_KEY(CryptoKeyAES, CryptoKeyClass::AES)
SPECIALIZE_TYPE_TRAITS_KEY_ALGORITHM(AesKeyAlgorithm, KeyAlgorithmClass::AES)
#endif // ENABLE(SUBTLE_CRYPTO)
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