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/*
* Copyright (C) 2020 Sony Interactive Entertainment Inc.
*
* 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 "SerializedCryptoKeyWrap.h"
#include "CryptoAlgorithmAESCTR.h"
#include "NotImplemented.h"
#include "WrappedCryptoKey.h"
namespace WebCore {
std::optional<Vector<uint8_t>> defaultWebCryptoMasterKey()
{
notImplemented();
return std::nullopt;
}
// Initially these helper functions were intended to perform KEK wrapping and unwrapping,
// but this is not required anymore, despite the function names and the Mac implementation
// still indicating otherwise.
// See https://bugs.webkit.org/show_bug.cgi?id=173883 for more info.
bool wrapSerializedCryptoKey(const Vector<uint8_t>& masterKey, const Vector<uint8_t>& key, Vector<uint8_t>& result)
{
UNUSED_PARAM(masterKey);
// No wrapping performed -- the serialized key data is copied into the `result` variable.
result = Vector<uint8_t>(key);
return true;
}
std::optional<struct WrappedCryptoKey> readSerializedCryptoKey(const Vector<uint8_t>& wrappedKey)
{
std::array<uint8_t, 24> a { 0 };
std::array<uint8_t, 16> b { 0 };
struct WrappedCryptoKey k { a, wrappedKey, b };
return k;
}
std::optional<Vector<uint8_t>> unwrapCryptoKey([[maybe_unused]] const Vector<uint8_t>& masterKey, const struct WrappedCryptoKey& wrappedKey)
{
return wrappedKey.encryptedKey;
}
} // namespace WebCore
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