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Side by Side Diff: net/quic/crypto/quic_decrypter.cc

Issue 1918953003: Landing Recent QUIC changes until 4/22/2016 14:55 UTC (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Deleted SpdyFramerTests missed while mergeing 120451808 Created 4 years, 8 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "net/quic/crypto/quic_decrypter.h" 5 #include "net/quic/crypto/quic_decrypter.h"
6 6
7 #include "crypto/hkdf.h" 7 #include "crypto/hkdf.h"
8 #include "net/quic/crypto/aes_128_gcm_12_decrypter.h" 8 #include "net/quic/crypto/aes_128_gcm_12_decrypter.h"
9 #include "net/quic/crypto/chacha20_poly1305_rfc7539_decrypter.h" 9 #include "net/quic/crypto/chacha20_poly1305_decrypter.h"
10 #include "net/quic/crypto/crypto_protocol.h" 10 #include "net/quic/crypto/crypto_protocol.h"
11 #include "net/quic/crypto/null_decrypter.h" 11 #include "net/quic/crypto/null_decrypter.h"
12 12
13 using base::StringPiece; 13 using base::StringPiece;
14 using std::string; 14 using std::string;
15 15
16 namespace net { 16 namespace net {
17 17
18 // static 18 // static
19 QuicDecrypter* QuicDecrypter::Create(QuicTag algorithm) { 19 QuicDecrypter* QuicDecrypter::Create(QuicTag algorithm) {
20 switch (algorithm) { 20 switch (algorithm) {
21 case kAESG: 21 case kAESG:
22 return new Aes128Gcm12Decrypter(); 22 return new Aes128Gcm12Decrypter();
23 case kCC20: 23 case kCC20:
24 return new ChaCha20Poly1305Rfc7539Decrypter(); 24 return new ChaCha20Poly1305Decrypter();
25 case kNULL: 25 case kNULL:
26 return new NullDecrypter(); 26 return new NullDecrypter();
27 default: 27 default:
28 LOG(FATAL) << "Unsupported algorithm: " << algorithm; 28 LOG(FATAL) << "Unsupported algorithm: " << algorithm;
29 return nullptr; 29 return nullptr;
30 } 30 }
31 } 31 }
32 32
33 // static 33 // static
34 void QuicDecrypter::DiversifyPreliminaryKey(StringPiece preliminary_key, 34 void QuicDecrypter::DiversifyPreliminaryKey(StringPiece preliminary_key,
35 StringPiece nonce_prefix, 35 StringPiece nonce_prefix,
36 DiversificationNonce nonce, 36 DiversificationNonce nonce,
37 size_t key_size, 37 size_t key_size,
38 size_t nonce_prefix_size, 38 size_t nonce_prefix_size,
39 string* out_key, 39 string* out_key,
40 string* out_nonce_prefix) { 40 string* out_nonce_prefix) {
41 crypto::HKDF hkdf(preliminary_key.as_string() + nonce_prefix.as_string(), 41 crypto::HKDF hkdf(preliminary_key.as_string() + nonce_prefix.as_string(),
42 StringPiece(nonce, kDiversificationNonceSize), 42 StringPiece(nonce, kDiversificationNonceSize),
43 "QUIC key diversification", 0, key_size, 0, 43 "QUIC key diversification", 0, key_size, 0,
44 nonce_prefix_size, 0); 44 nonce_prefix_size, 0);
45 *out_key = hkdf.server_write_key().as_string(); 45 *out_key = hkdf.server_write_key().as_string();
46 *out_nonce_prefix = hkdf.server_write_iv().as_string(); 46 *out_nonce_prefix = hkdf.server_write_iv().as_string();
47 } 47 }
48 48
49 } // namespace net 49 } // namespace net
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