| // 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 PERIDOT_BIN_LEDGER_ENCRYPTION_PRIMITIVES_KDF_H_ |
| #define PERIDOT_BIN_LEDGER_ENCRYPTION_PRIMITIVES_KDF_H_ |
| |
| #include <string> |
| |
| #include <lib/fxl/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(fxl::StringView data, size_t length); |
| } // namespace encryption |
| |
| #endif // PERIDOT_BIN_LEDGER_ENCRYPTION_PRIMITIVES_KDF_H_ |
