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// 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_
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