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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.
*/
#include "config.h"
#include "CryptoKey.h"
#if ENABLE(SUBTLE_CRYPTO)
#include "CryptoAlgorithmRegistry.h"
#include "CryptoKeyAES.h"
#include "CryptoKeyEC.h"
#include "CryptoKeyHMAC.h"
#include "CryptoKeyRSA.h"
#include "CryptoKeyRaw.h"
#include <wtf/CryptographicallyRandomNumber.h>
namespace WebCore {
CryptoKey::CryptoKey(CryptoAlgorithmIdentifier algorithmIdentifier, Type type, bool extractable, CryptoKeyUsageBitmap usages)
: m_algorithmIdentifier(algorithmIdentifier)
, m_type(type)
, m_extractable(extractable)
, m_usages(usages)
{
}
CryptoKey::~CryptoKey()
{
}
auto CryptoKey::algorithm() const -> AlgorithmVariant
{
std::unique_ptr<KeyAlgorithm> algorithm = buildAlgorithm();
switch (algorithm->keyAlgorithmClass()) {
case KeyAlgorithmClass::AES:
return downcast<AesKeyAlgorithm>(*algorithm).dictionary();
case KeyAlgorithmClass::EC:
return downcast<EcKeyAlgorithm>(*algorithm).dictionary();
case KeyAlgorithmClass::HMAC:
return downcast<HmacKeyAlgorithm>(*algorithm).dictionary();
case KeyAlgorithmClass::HRSA:
return downcast<RsaHashedKeyAlgorithm>(*algorithm).dictionary();
case KeyAlgorithmClass::RSA:
return downcast<RsaKeyAlgorithm>(*algorithm).dictionary();
case KeyAlgorithmClass::Raw:
return downcast<RawKeyAlgorithm>(*algorithm).dictionary();
}
}
auto CryptoKey::usages() const -> Vector<CryptoKeyUsage>
{
// The result is ordered alphabetically.
Vector<CryptoKeyUsage> result;
if (m_usages & CryptoKeyUsageDecrypt)
result.append(CryptoKeyUsage::Decrypt);
if (m_usages & CryptoKeyUsageDeriveBits)
result.append(CryptoKeyUsage::DeriveBits);
if (m_usages & CryptoKeyUsageDeriveKey)
result.append(CryptoKeyUsage::DeriveKey);
if (m_usages & CryptoKeyUsageEncrypt)
result.append(CryptoKeyUsage::Encrypt);
if (m_usages & CryptoKeyUsageSign)
result.append(CryptoKeyUsage::Sign);
if (m_usages & CryptoKeyUsageUnwrapKey)
result.append(CryptoKeyUsage::UnwrapKey);
if (m_usages & CryptoKeyUsageVerify)
result.append(CryptoKeyUsage::Verify);
if (m_usages & CryptoKeyUsageWrapKey)
result.append(CryptoKeyUsage::WrapKey);
return result;
}
#if !OS(DARWIN) || PLATFORM(GTK)
Vector<uint8_t> CryptoKey::randomData(size_t size)
{
Vector<uint8_t> result(size);
cryptographicallyRandomValues(result.data(), result.size());
return result;
}
#endif
} // namespace WebCore
#endif // ENABLE(SUBTLE_CRYPTO)
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