root/Source/modules/crypto/KeyAlgorithm.cpp

DEFINITIONS

1. create
2. createHash
3. name
4. isAesKeyAlgorithm
5. isHmacKeyAlgorithm
6. isRsaHashedKeyAlgorithm
7. isRsaKeyAlgorithm
8. trace

/*
 * 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.
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 * 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
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#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 "wtf/text/WTFString.h"

namespace WebCore {

KeyAlgorithm::~KeyAlgorithm()
{
}

PassRefPtrWillBeRawPtr<KeyAlgorithm> KeyAlgorithm::create(const blink::WebCryptoKeyAlgorithm& algorithm)
{
    switch (algorithm.paramsType()) {
    case blink::WebCryptoKeyAlgorithmParamsTypeNone:
        return adoptRefWillBeNoop(new KeyAlgorithm(algorithm));
    case blink::WebCryptoKeyAlgorithmParamsTypeAes:
        return AesKeyAlgorithm::create(algorithm);
    case blink::WebCryptoKeyAlgorithmParamsTypeHmac:
        return HmacKeyAlgorithm::create(algorithm);
    case blink::WebCryptoKeyAlgorithmParamsTypeRsa:
        return RsaKeyAlgorithm::create(algorithm);
    case blink::WebCryptoKeyAlgorithmParamsTypeRsaHashed:
        return RsaHashedKeyAlgorithm::create(algorithm);
    }
    ASSERT_NOT_REACHED();
    return nullptr;
}

PassRefPtrWillBeRawPtr<KeyAlgorithm> KeyAlgorithm::createHash(const blink::WebCryptoAlgorithm& hash)
{
    // Assume that none of the hash algorithms have any parameters.
    ASSERT(hash.paramsType() == blink::WebCryptoAlgorithmParamsTypeNone);
    return adoptRefWillBeNoop(new KeyAlgorithm(blink::WebCryptoKeyAlgorithm(hash.id(), nullptr)));
}

KeyAlgorithm::KeyAlgorithm(const blink::WebCryptoKeyAlgorithm& algorithm)
    : m_algorithm(algorithm)
{
    ScriptWrappable::init(this);
}

String KeyAlgorithm::name()
{
    return algorithmIdToName(m_algorithm.id());
}

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;
}

bool KeyAlgorithm::isRsaKeyAlgorithm() const
{
    return m_algorithm.paramsType() == blink::WebCryptoKeyAlgorithmParamsTypeRsa;
}

void KeyAlgorithm::trace(Visitor*)
{
}

} // namespace WebCore