| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "net/quic/crypto/chacha20_poly1305_decrypter.h" |
| |
| #include <openssl/evp.h> |
| #include <openssl/tls1.h> |
| |
| namespace net { |
| |
| namespace { |
| |
| const size_t kKeySize = 32; |
| const size_t kNoncePrefixSize = 0; |
| |
| } // namespace |
| |
| ChaCha20Poly1305Decrypter::ChaCha20Poly1305Decrypter() |
| : AeadBaseDecrypter(EVP_aead_chacha20_poly1305(), kKeySize, kAuthTagSize, |
| kNoncePrefixSize) { |
| static_assert(kKeySize <= kMaxKeySize, "key size too big"); |
| static_assert(kNoncePrefixSize <= kMaxNoncePrefixSize, |
| "nonce prefix size too big"); |
| } |
| |
| ChaCha20Poly1305Decrypter::~ChaCha20Poly1305Decrypter() {} |
| |
| // static |
| bool ChaCha20Poly1305Decrypter::IsSupported() { return true; } |
| |
| const char* ChaCha20Poly1305Decrypter::cipher_name() const { |
| return TLS1_TXT_ECDHE_RSA_WITH_CHACHA20_POLY1305; |
| } |
| |
| uint32 ChaCha20Poly1305Decrypter::cipher_id() const { |
| return TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305; |
| } |
| |
| } // namespace net |