net/quic/crypto/aes_128_gcm_12_encrypter_openssl.cc

   1 // Copyright (c) 2013 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/aes_128_gcm_12_encrypter.h"
   6
   7 #include <openssl/evp.h>
   8
   9 namespace net {
  10
  11 namespace {
  12
  13 const size_t kKeySize = 16;
  14 const size_t kNoncePrefixSize = 4;
  15
  16 }  // namespace
  17
  18 Aes128Gcm12Encrypter::Aes128Gcm12Encrypter()
  19     : AeadBaseEncrypter(EVP_aead_aes_128_gcm(), kKeySize, kAuthTagSize,
  20                         kNoncePrefixSize) {
  21   static_assert(kKeySize <= kMaxKeySize, "key size too big");
  22   static_assert(kNoncePrefixSize <= kMaxNoncePrefixSize,
  23                 "nonce prefix size too big");
  24 }
  25
  26 Aes128Gcm12Encrypter::~Aes128Gcm12Encrypter() {}
  27
  28 }  // namespace net