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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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