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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
#if ENABLE(SUBTLE_CRYPTO)
#include "CryptoAlgorithmIdentifier.h"
#include "CryptoKeyType.h"
#include "CryptoKeyUsage.h"
#include <wtf/Forward.h>
#include <wtf/ThreadSafeRefCounted.h>
#include <wtf/TypeCasts.h>
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class CryptoAlgorithmDescriptionBuilder;
class CryptoKeyData;
enum class CryptoKeyClass {
AES,
HMAC,
RSA
};
enum class KeyAlgorithmClass {
AES,
HMAC,
HRSA,
RSA,
};
class KeyAlgorithm {
public:
virtual ~KeyAlgorithm()
{
}
virtual KeyAlgorithmClass keyAlgorithmClass() const = 0;
const String& name() const { return m_name; }
protected:
explicit KeyAlgorithm(const String& name)
: m_name(name)
{
}
private:
String m_name;
};
class CryptoKey : public ThreadSafeRefCounted<CryptoKey> {
public:
using Type = CryptoKeyType;
CryptoKey(CryptoAlgorithmIdentifier, Type, bool extractable, CryptoKeyUsageBitmap);
virtual ~CryptoKey();
virtual CryptoKeyClass keyClass() const = 0;
Type type() const;
bool extractable() const { return m_extractable; }
virtual std::unique_ptr<KeyAlgorithm> buildAlgorithm() const = 0;
// Only for binding purpose.
Vector<CryptoKeyUsage> usages() const;
CryptoAlgorithmIdentifier algorithmIdentifier() const { return m_algorithmIdentifier; }
CryptoKeyUsageBitmap usagesBitmap() const { return m_usages; }
void setUsagesBitmap(CryptoKeyUsageBitmap usage) { m_usages = usage; };
bool allows(CryptoKeyUsageBitmap usage) const { return usage == (m_usages & usage); }
virtual std::unique_ptr<CryptoKeyData> exportData() const = 0;
static Vector<uint8_t> randomData(size_t);
private:
CryptoAlgorithmIdentifier m_algorithmIdentifier;
Type m_type;
bool m_extractable;
CryptoKeyUsageBitmap m_usages;
};
inline auto CryptoKey::type() const -> Type
{
return m_type;
}
} // namespace WebCore
#define SPECIALIZE_TYPE_TRAITS_CRYPTO_KEY(ToClassName, KeyClass) \
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::ToClassName) \
static bool isType(const WebCore::CryptoKey& key) { return key.keyClass() == WebCore::KeyClass; } \
SPECIALIZE_TYPE_TRAITS_END()
#define SPECIALIZE_TYPE_TRAITS_KEY_ALGORITHM(ToClassName, KeyAlgorithmClass) \
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::ToClassName) \
static bool isType(const WebCore::KeyAlgorithm& algorithm) { return algorithm.keyAlgorithmClass() == WebCore::KeyAlgorithmClass; } \
SPECIALIZE_TYPE_TRAITS_END()
#endif // ENABLE(SUBTLE_CRYPTO)
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