OLD | NEW |
| (Empty) |
1 // Copyright (c) 2012 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_NULL_DECRYPTER_H_ | |
6 #define NET_QUIC_CRYPTO_NULL_DECRYPTER_H_ | |
7 | |
8 #include <stddef.h> | |
9 #include <stdint.h> | |
10 | |
11 #include "base/compiler_specific.h" | |
12 #include "base/macros.h" | |
13 #include "net/base/net_export.h" | |
14 #include "net/quic/crypto/quic_decrypter.h" | |
15 | |
16 namespace net { | |
17 | |
18 class QuicDataReader; | |
19 | |
20 // A NullDecrypter is a QuicDecrypter used before a crypto negotiation | |
21 // has occurred. It does not actually decrypt the payload, but does | |
22 // verify a hash (fnv128) over both the payload and associated data. | |
23 class NET_EXPORT_PRIVATE NullDecrypter : public QuicDecrypter { | |
24 public: | |
25 NullDecrypter(); | |
26 ~NullDecrypter() override {} | |
27 | |
28 // QuicDecrypter implementation | |
29 bool SetKey(base::StringPiece key) override; | |
30 bool SetNoncePrefix(base::StringPiece nonce_prefix) override; | |
31 bool SetPreliminaryKey(base::StringPiece key) override; | |
32 bool SetDiversificationNonce(DiversificationNonce nonce) override; | |
33 bool DecryptPacket(QuicPathId path_id, | |
34 QuicPacketNumber packet_number, | |
35 base::StringPiece associated_data, | |
36 base::StringPiece ciphertext, | |
37 char* output, | |
38 size_t* output_length, | |
39 size_t max_output_length) override; | |
40 base::StringPiece GetKey() const override; | |
41 base::StringPiece GetNoncePrefix() const override; | |
42 | |
43 const char* cipher_name() const override; | |
44 uint32_t cipher_id() const override; | |
45 | |
46 private: | |
47 bool ReadHash(QuicDataReader* reader, uint128* hash); | |
48 uint128 ComputeHash(base::StringPiece data1, base::StringPiece data2) const; | |
49 | |
50 DISALLOW_COPY_AND_ASSIGN(NullDecrypter); | |
51 }; | |
52 | |
53 } // namespace net | |
54 | |
55 #endif // NET_QUIC_CRYPTO_NULL_DECRYPTER_H_ | |
OLD | NEW |