| // Copyright 2017 The Fuchsia 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 SRC_LEDGER_BIN_ENCRYPTION_PRIMITIVES_KDF_H_ |
| #define SRC_LEDGER_BIN_ENCRYPTION_PRIMITIVES_KDF_H_ |
| |
| #include <string> |
| |
| #include "third_party/abseil-cpp/absl/strings/string_view.h" |
| |
| namespace encryption { |
| // Compute the key derivation function defined by RFC 5869 using HMAC-256 and |
| // the given |length|. The usual salt and info are omitted due to the fact that |
| // our scheme always passes unique data to the KDF. |
| std::string HMAC256KDF(absl::string_view data, size_t length); |
| } // namespace encryption |
| |
| #endif // SRC_LEDGER_BIN_ENCRYPTION_PRIMITIVES_KDF_H_ |
