| // Copyright 2015 The Weave Authors. All rights reserved. | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #ifndef LIBWEAVE_SRC_PRIVET_OPENSSL_UTILS_H_ | 
 | #define LIBWEAVE_SRC_PRIVET_OPENSSL_UTILS_H_ | 
 |  | 
 | #include <string> | 
 | #include <vector> | 
 |  | 
 | namespace weave { | 
 | namespace privet { | 
 |  | 
 | const size_t kSha256OutputSize = 32; | 
 |  | 
 | std::vector<uint8_t> HmacSha256(const std::vector<uint8_t>& key, | 
 |                                 const std::vector<uint8_t>& data); | 
 | }  // namespace privet | 
 | }  // namespace weave | 
 |  | 
 | #endif  // LIBWEAVE_SRC_PRIVET_OPENSSL_UTILS_H_ |