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/*
* Copyright (C) 2014 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 "modules/crypto/KeyAlgorithm.h"
#include "modules/crypto/AesKeyAlgorithm.h"
#include "modules/crypto/HmacKeyAlgorithm.h"
#include "modules/crypto/NormalizeAlgorithm.h"
#include "modules/crypto/RsaHashedKeyAlgorithm.h"
#include "modules/crypto/RsaKeyAlgorithm.h"
#include "public/platform/WebCryptoAlgorithm.h"
#include "wtf/text/WTFString.h"
namespace WebCore {
KeyAlgorithm::~KeyAlgorithm()
{
}
KeyAlgorithm* KeyAlgorithm::create(const blink::WebCryptoKeyAlgorithm& algorithm)
{
switch (algorithm.paramsType()) {
case blink::WebCryptoKeyAlgorithmParamsTypeNone:
return new KeyAlgorithm(algorithm);
case blink::WebCryptoKeyAlgorithmParamsTypeAes:
return AesKeyAlgorithm::create(algorithm);
case blink::WebCryptoKeyAlgorithmParamsTypeHmac:
return HmacKeyAlgorithm::create(algorithm);
case blink::WebCryptoKeyAlgorithmParamsTypeRsaHashed:
return RsaHashedKeyAlgorithm::create(algorithm);
}
ASSERT_NOT_REACHED();
return 0;
}
KeyAlgorithm* KeyAlgorithm::createHash(const blink::WebCryptoAlgorithm& hash)
{
// Assume that none of the hash algorithms have any parameters.
ASSERT(hash.paramsType() == blink::WebCryptoAlgorithmParamsTypeNone);
return new KeyAlgorithm(blink::WebCryptoKeyAlgorithm(hash.id(), nullptr));
}
KeyAlgorithm::KeyAlgorithm(const blink::WebCryptoKeyAlgorithm& algorithm)
: m_algorithm(algorithm)
{
ScriptWrappable::init(this);
}
String KeyAlgorithm::name()
{
const blink::WebCryptoAlgorithmInfo* info = blink::WebCryptoAlgorithm::lookupAlgorithmInfo(m_algorithm.id());
return info->name;
}
bool KeyAlgorithm::isAesKeyAlgorithm() const
{
return m_algorithm.paramsType() == blink::WebCryptoKeyAlgorithmParamsTypeAes;
}
bool KeyAlgorithm::isHmacKeyAlgorithm() const
{
return m_algorithm.paramsType() == blink::WebCryptoKeyAlgorithmParamsTypeHmac;
}
bool KeyAlgorithm::isRsaHashedKeyAlgorithm() const
{
return m_algorithm.paramsType() == blink::WebCryptoKeyAlgorithmParamsTypeRsaHashed;
}
void KeyAlgorithm::trace(Visitor*)
{
}
} // namespace WebCore
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