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 3 // found in the LICENSE file. 4 5 #include "net/quic/crypto/chacha20_poly1305_encrypter.h" 6 7 #include <openssl/evp.h> 8 9 namespace net { 10 11 namespace { 12 13 const size_t kKeySize = 32; 14 const size_t kNoncePrefixSize = 0; 15 16 } // namespace 17 ChaCha20Poly1305Encrypter()18ChaCha20Poly1305Encrypter::ChaCha20Poly1305Encrypter() 19 : AeadBaseEncrypter(EVP_aead_chacha20_poly1305(), kKeySize, kAuthTagSize, 20 kNoncePrefixSize) { 21 COMPILE_ASSERT(kKeySize <= kMaxKeySize, key_size_too_big); 22 COMPILE_ASSERT(kNoncePrefixSize <= kMaxNoncePrefixSize, 23 nonce_prefix_size_too_big); 24 } 25 ~ChaCha20Poly1305Encrypter()26ChaCha20Poly1305Encrypter::~ChaCha20Poly1305Encrypter() {} 27 28 // static IsSupported()29bool ChaCha20Poly1305Encrypter::IsSupported() { return true; } 30 31 } // namespace net 32