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/*
* Copyright (C) 2021 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.
*/
#pragma once
#include "CryptoAlgorithmIdentifier.h"
#include "OpenSSLCryptoUniquePtr.h"
#include <openssl/aes.h>
#include <openssl/evp.h>
#include <stdint.h>
#include <wtf/Noncopyable.h>
#include <wtf/Vector.h>
namespace WebCore {
const EVP_MD* digestAlgorithm(CryptoAlgorithmIdentifier hashFunction);
std::optional<Vector<uint8_t>> calculateDigest(const EVP_MD* algorithm, const Vector<uint8_t>& message);
Vector<uint8_t> convertToBytes(const BIGNUM*);
Vector<uint8_t> convertToBytesExpand(const BIGNUM*, size_t bufferSize);
BIGNUMPtr convertToBigNumber(const Vector<uint8_t>& bytes);
class AESKey {
WTF_MAKE_NONCOPYABLE(AESKey);
public:
AESKey() = default;
~AESKey();
bool setKey(const Vector<uint8_t>& key, int enc /* AES_ENCRYPT or AES_DECRYPT */);
AES_KEY* key() { return &m_key; }
private:
AES_KEY m_key;
};
} // namespace WebCore
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