| // Copyright (c) 2012 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_NULL_ENCRYPTER_H_ |
| #define QUICHE_QUIC_CORE_CRYPTO_NULL_ENCRYPTER_H_ |
| |
| #include <cstddef> |
| |
| #include "base/macros.h" |
| #include "net/third_party/quiche/src/quic/core/crypto/quic_encrypter.h" |
| #include "net/third_party/quiche/src/quic/core/quic_types.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_export.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_string_piece.h" |
| |
| namespace quic { |
| |
| // A NullEncrypter is a QuicEncrypter used before a crypto negotiation |
| // has occurred. It does not actually encrypt the payload, but does |
| // generate a MAC (fnv128) over both the payload and associated data. |
| class QUIC_EXPORT_PRIVATE NullEncrypter : public QuicEncrypter { |
| public: |
| explicit NullEncrypter(Perspective perspective); |
| NullEncrypter(const NullEncrypter&) = delete; |
| NullEncrypter& operator=(const NullEncrypter&) = delete; |
| ~NullEncrypter() override {} |
| |
| // QuicEncrypter implementation |
| bool SetKey(QuicStringPiece key) override; |
| bool SetNoncePrefix(QuicStringPiece nonce_prefix) override; |
| bool SetIV(QuicStringPiece iv) override; |
| bool EncryptPacket(uint64_t packet_number, |
| QuicStringPiece associated_data, |
| QuicStringPiece plaintext, |
| char* output, |
| size_t* output_length, |
| size_t max_output_length) override; |
| size_t GetKeySize() const override; |
| size_t GetNoncePrefixSize() const override; |
| size_t GetIVSize() const override; |
| size_t GetMaxPlaintextSize(size_t ciphertext_size) const override; |
| size_t GetCiphertextSize(size_t plaintext_size) const override; |
| QuicStringPiece GetKey() const override; |
| QuicStringPiece GetNoncePrefix() const override; |
| |
| private: |
| size_t GetHashLength() const; |
| |
| Perspective perspective_; |
| }; |
| |
| } // namespace quic |
| |
| #endif // QUICHE_QUIC_CORE_CRYPTO_NULL_ENCRYPTER_H_ |