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Issue 11125002: Add QuicFramer and friends. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Fix final comments. Created 8 years, 2 months ago
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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 #include "net/quic/crypto/null_decrypter.h"
6 #include "net/quic/quic_utils.h"
7 #include "net/quic/quic_data_reader.h"
8
9 using base::StringPiece;
10 using std::string;
11
12 namespace net {
13
14 QuicData* NullDecrypter::Decrypt(StringPiece associated_data,
15 StringPiece ciphertext) {
16 QuicDataReader reader(ciphertext.data(), ciphertext.length());
17
18 uint128 hash;
19 if (!reader.ReadUInt128(&hash)) {
20 return NULL;
21 }
22
23 StringPiece plaintext = reader.ReadRemainingPayload();
24
25 // TODO(rch): avoid buffer copy here
26 string buffer = associated_data.as_string();
27 plaintext.AppendToString(&buffer);
28
29 if (hash != QuicUtils::FNV1a_128_Hash(buffer.data(), buffer.length())) {
30 return NULL;
31 }
32 return new QuicData(plaintext.data(), plaintext.length());
33 }
34
35 } // namespace net
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