1 // Copyright (c) 2017 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef QUICHE_QUIC_CORE_CRYPTO_AES_256_GCM_ENCRYPTER_H_ 6 #define QUICHE_QUIC_CORE_CRYPTO_AES_256_GCM_ENCRYPTER_H_ 7 8 #include "quiche/quic/core/crypto/aes_base_encrypter.h" 9 #include "quiche/quic/platform/api/quic_export.h" 10 11 namespace quic { 12 13 // An Aes256GcmEncrypter is a QuicEncrypter that implements the 14 // AEAD_AES_256_GCM algorithm specified in RFC 5116 for use in IETF QUIC. 15 // 16 // It uses an authentication tag of 16 bytes (128 bits). It uses a 12 byte IV 17 // that is XOR'd with the packet number to compute the nonce. 18 class QUICHE_EXPORT Aes256GcmEncrypter : public AesBaseEncrypter { 19 public: 20 enum { 21 kAuthTagSize = 16, 22 }; 23 24 Aes256GcmEncrypter(); 25 Aes256GcmEncrypter(const Aes256GcmEncrypter&) = delete; 26 Aes256GcmEncrypter& operator=(const Aes256GcmEncrypter&) = delete; 27 ~Aes256GcmEncrypter() override; 28 }; 29 30 } // namespace quic 31 32 #endif // QUICHE_QUIC_CORE_CRYPTO_AES_256_GCM_ENCRYPTER_H_ 33