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// Copyright (c) 2017 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.
#include <cstdint>
#include "quiche/quic/core/crypto/aes_base_decrypter.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
// An Aes128GcmDecrypter is a QuicDecrypter that implements the
// AEAD_AES_128_GCM algorithm specified in RFC 5116 for use in IETF QUIC.
// It uses an authentication tag of 16 bytes (128 bits). It uses a 12 byte IV
// that is XOR'd with the packet number to compute the nonce.
class QUIC_EXPORT_PRIVATE Aes128GcmDecrypter : public AesBaseDecrypter {
enum {
kAuthTagSize = 16,
Aes128GcmDecrypter(const Aes128GcmDecrypter&) = delete;
Aes128GcmDecrypter& operator=(const Aes128GcmDecrypter&) = delete;
~Aes128GcmDecrypter() override;
uint32_t cipher_id() const override;
} // namespace quic