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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_QUIC_CRYPTO_EPHEMERAL_KEY_SOURCE_H_
#define NET_QUIC_CRYPTO_EPHEMERAL_KEY_SOURCE_H_
#include <string>
#include "base/strings/string_piece.h"
#include "net/base/net_export.h"
#include "net/quic/quic_time.h"
namespace net {
class KeyExchange;
class QuicRandom;
// EphemeralKeySource manages and rotates ephemeral keys as they can be reused
// for several connections in a short space of time. Since the implementation
// of this may involve locking or thread-local data, this interface abstracts
// that away.
class NET_EXPORT_PRIVATE EphemeralKeySource {
public:
virtual ~EphemeralKeySource() {}
// CalculateForwardSecureKey generates an ephemeral public/private key pair
// using the algorithm |key_exchange|, sets |*public_value| to the public key
// and returns the shared key between |peer_public_value| and the private
// key. |*public_value| will be sent to the peer to be used with the peer's
// private key.
virtual std::string CalculateForwardSecureKey(
const KeyExchange* key_exchange,
QuicRandom* rand,
QuicTime now,
base::StringPiece peer_public_value,
std::string* public_value) = 0;
};
} // namespace net
#endif // NET_QUIC_CRYPTO_EPHEMERAL_KEY_SOURCE_H_
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