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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_rfc7539_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 = 4; | |
15 | |
16 } // namespace | |
17 | |
18 ChaCha20Poly1305Rfc7539Encrypter::ChaCha20Poly1305Rfc7539Encrypter() | |
19 : AeadBaseEncrypter(EVP_aead_chacha20_poly1305(), | |
20 kKeySize, | |
21 kAuthTagSize, | |
22 kNoncePrefixSize) { | |
23 static_assert(kKeySize <= kMaxKeySize, "key size too big"); | |
24 static_assert(kNoncePrefixSize <= kMaxNoncePrefixSize, | |
25 "nonce prefix size too big"); | |
26 } | |
27 | |
28 ChaCha20Poly1305Rfc7539Encrypter::~ChaCha20Poly1305Rfc7539Encrypter() {} | |
29 | |
30 bool ChaCha20Poly1305Rfc7539Encrypter::IsSupported() { | |
31 return true; | |
32 } | |
33 | |
34 } // namespace net | |
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