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| 1 // Copyright (c) 2013 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 NET_QUIC_CRYPTO_AES_128_GCM_12_ENCRYPTER_H_ | |
| 6 #define NET_QUIC_CRYPTO_AES_128_GCM_12_ENCRYPTER_H_ | |
| 7 | |
| 8 #include "net/quic/crypto/aead_base_encrypter.h" | |
| 9 | |
| 10 namespace net { | |
| 11 | |
| 12 // An Aes128Gcm12Encrypter is a QuicEncrypter that implements the | |
| 13 // AEAD_AES_128_GCM_12 algorithm specified in RFC 5282. Create an instance by | |
| 14 // calling QuicEncrypter::Create(kAESG). | |
| 15 // | |
| 16 // It uses an authentication tag of 12 bytes (96 bits). The fixed prefix | |
| 17 // of the nonce is four bytes. | |
| 18 class NET_EXPORT_PRIVATE Aes128Gcm12Encrypter : public AeadBaseEncrypter { | |
| 19 public: | |
| 20 enum { | |
| 21 // Authentication tags are truncated to 96 bits. | |
| 22 kAuthTagSize = 12, | |
| 23 }; | |
| 24 | |
| 25 Aes128Gcm12Encrypter(); | |
| 26 ~Aes128Gcm12Encrypter() override; | |
| 27 | |
| 28 #if !defined(USE_OPENSSL) | |
| 29 protected: | |
| 30 // AeadBaseEncrypter methods: | |
| 31 void FillAeadParams(base::StringPiece nonce, | |
| 32 base::StringPiece associated_data, | |
| 33 size_t auth_tag_size, | |
| 34 AeadParams* aead_params) const override; | |
| 35 #endif | |
| 36 | |
| 37 private: | |
| 38 DISALLOW_COPY_AND_ASSIGN(Aes128Gcm12Encrypter); | |
| 39 }; | |
| 40 | |
| 41 } // namespace net | |
| 42 | |
| 43 #endif // NET_QUIC_CRYPTO_AES_128_GCM_12_ENCRYPTER_H_ | |
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