| // Copyright 2017 The Chromium 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 COMPONENTS_CRYPTAUTH_BLE_RAW_EID_GENERATOR_H_ |
| #define COMPONENTS_CRYPTAUTH_BLE_RAW_EID_GENERATOR_H_ |
| |
| #include <string> |
| |
| namespace cryptauth { |
| |
| // Generates raw ephemeral ID (EID) values that are used by the |
| // ForegroundEidGenerator and BackgroundEidGenerator classes. |
| class RawEidGenerator { |
| public: |
| virtual ~RawEidGenerator() {} |
| |
| // The size of an EID in bytes. |
| static const int32_t kNumBytesInEidValue; |
| |
| // Generates the EID at |start_of_period_timestamp_ms| using the given |
| // |eid_seed|. If |extra_entropy| is not null, then it will be used in the EID |
| // calculation. |
| virtual std::string GenerateEid(const std::string& eid_seed, |
| int64_t start_of_period_timestamp_ms, |
| std::string const* extra_entropy) = 0; |
| }; |
| |
| } // cryptauth |
| |
| #endif // COMPONENTS_CRYPTAUTH_BLE_RAW_EID_GENERATOR_H_ |
