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// Copyright (c) 2012 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_QUIC_ENCRYPTER_H_
#define NET_QUIC_CRYPTO_QUIC_ENCRYPTER_H_
#include "net/base/net_export.h"
#include "net/quic/crypto/crypto_protocol.h"
#include "net/quic/quic_protocol.h"
namespace net {
class NET_EXPORT_PRIVATE QuicEncrypter {
public:
virtual ~QuicEncrypter() {}
static QuicEncrypter* Create(CryptoTag algorithm);
// Returns a newly created QuicData object containing the encrypted
// |plaintext| as well as a MAC over both |plaintext| and |associated_data|,
// or NULL if there is an error.
virtual QuicData* Encrypt(base::StringPiece associated_data,
base::StringPiece plaintext) = 0;
// Returns the maximum length of plaintext that can be encrypted
// to ciphertext no larger than |ciphertext_size|.
virtual size_t GetMaxPlaintextSize(size_t ciphertext_size) = 0;
// Returns the length of the ciphertext that would be generated by encrypting
// to plaintext of size |plaintext_size|.
virtual size_t GetCiphertextSize(size_t plaintext_size) = 0;
};
} // namespace net
#endif // NET_QUIC_CRYPTO_QUIC_ENCRYPTER_H_
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