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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 "CryptoAlgorithmAES_KW.h"
#if ENABLE(WEB_CRYPTO)
#include "CryptoKeyAES.h"
#include <CommonCrypto/CommonCrypto.h>
namespace WebCore {
static ExceptionOr<Vector<uint8_t>> wrapKeyAES_KW(const Vector<uint8_t>& key, const Vector<uint8_t>& data)
{
Vector<uint8_t> result(CCSymmetricWrappedSize(kCCWRAPAES, data.size()));
size_t resultSize = result.size();
if (CCSymmetricKeyWrap(kCCWRAPAES, CCrfc3394_iv, CCrfc3394_ivLen, key.data(), key.size(), data.data(), data.size(), result.data(), &resultSize))
return Exception { OperationError };
result.shrink(resultSize);
return WTFMove(result);
}
static ExceptionOr<Vector<uint8_t>> unwrapKeyAES_KW(const Vector<uint8_t>& key, const Vector<uint8_t>& data)
{
Vector<uint8_t> result(CCSymmetricUnwrappedSize(kCCWRAPAES, data.size()));
size_t resultSize = result.size();
if (resultSize % 8)
return Exception { OperationError };
if (CCSymmetricKeyUnwrap(kCCWRAPAES, CCrfc3394_iv, CCrfc3394_ivLen, key.data(), key.size(), data.data(), data.size(), result.data(), &resultSize))
return Exception { OperationError };
result.shrink(resultSize);
return WTFMove(result);
}
ExceptionOr<Vector<uint8_t>> CryptoAlgorithmAES_KW::platformWrapKey(const CryptoKeyAES& key, const Vector<uint8_t>& data)
{
return wrapKeyAES_KW(key.key(), data);
}
ExceptionOr<Vector<uint8_t>> CryptoAlgorithmAES_KW::platformUnwrapKey(const CryptoKeyAES& key, const Vector<uint8_t>& data)
{
return unwrapKeyAES_KW(key.key(), data);
}
} // namespace WebCore
#endif // ENABLE(WEB_CRYPTO)