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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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/chacha20_poly1305_rfc7539_decrypter.h" | 5 #include "net/quic/crypto/chacha20_poly1305_decrypter.h" |
6 | 6 |
7 #include <openssl/evp.h> | 7 #include <openssl/evp.h> |
8 #include <openssl/tls1.h> | 8 #include <openssl/tls1.h> |
9 | 9 |
10 namespace net { | 10 namespace net { |
11 | 11 |
12 namespace { | 12 namespace { |
13 | 13 |
14 const size_t kKeySize = 32; | 14 const size_t kKeySize = 32; |
15 const size_t kNoncePrefixSize = 4; | 15 const size_t kNoncePrefixSize = 4; |
16 | 16 |
17 } // namespace | 17 } // namespace |
18 | 18 |
19 ChaCha20Poly1305Rfc7539Decrypter::ChaCha20Poly1305Rfc7539Decrypter() | 19 ChaCha20Poly1305Decrypter::ChaCha20Poly1305Decrypter() |
20 : AeadBaseDecrypter(EVP_aead_chacha20_poly1305(), | 20 : AeadBaseDecrypter(EVP_aead_chacha20_poly1305(), |
21 kKeySize, | 21 kKeySize, |
22 kAuthTagSize, | 22 kAuthTagSize, |
23 kNoncePrefixSize) { | 23 kNoncePrefixSize) { |
24 static_assert(kKeySize <= kMaxKeySize, "key size too big"); | 24 static_assert(kKeySize <= kMaxKeySize, "key size too big"); |
25 static_assert(kNoncePrefixSize <= kMaxNoncePrefixSize, | 25 static_assert(kNoncePrefixSize <= kMaxNoncePrefixSize, |
26 "nonce prefix size too big"); | 26 "nonce prefix size too big"); |
27 } | 27 } |
28 | 28 |
29 ChaCha20Poly1305Rfc7539Decrypter::~ChaCha20Poly1305Rfc7539Decrypter() {} | 29 ChaCha20Poly1305Decrypter::~ChaCha20Poly1305Decrypter() {} |
30 | 30 |
31 bool ChaCha20Poly1305Rfc7539Decrypter::IsSupported() { | 31 const char* ChaCha20Poly1305Decrypter::cipher_name() const { |
32 return true; | 32 return TLS1_TXT_ECDHE_RSA_WITH_CHACHA20_POLY1305; |
33 } | 33 } |
34 | 34 |
35 const char* ChaCha20Poly1305Rfc7539Decrypter::cipher_name() const { | 35 uint32_t ChaCha20Poly1305Decrypter::cipher_id() const { |
36 return TLS1_TXT_ECDHE_RSA_WITH_CHACHA20_POLY1305_OLD; | 36 return TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305; |
37 } | |
38 | |
39 uint32_t ChaCha20Poly1305Rfc7539Decrypter::cipher_id() const { | |
40 return TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305_OLD; | |
41 } | 37 } |
42 | 38 |
43 } // namespace net | 39 } // namespace net |
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