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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 Aes128Gcm12Decrypter is a QuicDecrypter that implements the
// AEAD_AES_128_GCM_12 algorithm specified in RFC 5282. Create an instance by
// calling QuicDecrypter::Create(kAESG).
// It uses an authentication tag of 12 bytes (96 bits). The fixed prefix
// of the nonce is four bytes.
class QUIC_EXPORT_PRIVATE Aes128Gcm12Decrypter : public AesBaseDecrypter {
enum {
// Authentication tags are truncated to 96 bits.
kAuthTagSize = 12,
Aes128Gcm12Decrypter(const Aes128Gcm12Decrypter&) = delete;
Aes128Gcm12Decrypter& operator=(const Aes128Gcm12Decrypter&) = delete;
~Aes128Gcm12Decrypter() override;
uint32_t cipher_id() const override;
} // namespace quic