| // 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. |
| |
| #ifndef QUICHE_QUIC_CORE_CRYPTO_AES_256_GCM_DECRYPTER_H_ |
| #define QUICHE_QUIC_CORE_CRYPTO_AES_256_GCM_DECRYPTER_H_ |
| |
| #include <cstdint> |
| |
| #include "quic/core/crypto/aes_base_decrypter.h" |
| #include "quic/platform/api/quic_export.h" |
| |
| namespace quic { |
| |
| // An Aes256GcmDecrypter is a QuicDecrypter that implements the |
| // AEAD_AES_256_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 Aes256GcmDecrypter : public AesBaseDecrypter { |
| public: |
| enum { |
| kAuthTagSize = 16, |
| }; |
| |
| Aes256GcmDecrypter(); |
| Aes256GcmDecrypter(const Aes256GcmDecrypter&) = delete; |
| Aes256GcmDecrypter& operator=(const Aes256GcmDecrypter&) = delete; |
| ~Aes256GcmDecrypter() override; |
| |
| uint32_t cipher_id() const override; |
| }; |
| |
| } // namespace quic |
| |
| #endif // QUICHE_QUIC_CORE_CRYPTO_AES_256_GCM_DECRYPTER_H_ |