blob: 257114b8a1e9716ebd3488bae84db4a5ec969851 [file] [log] [blame]
/*
* Copyright (c) 2024 Project CHIP Authors
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @brief The file implements the Matter Check-In counter
*
*/
#pragma once
#include <crypto/RandUtils.h>
#include <lib/support/PersistedCounter.h>
namespace chip {
namespace Protocols {
namespace SecureChannel {
/**
* @brief
*
*/
class CheckInCounter : public PersistedCounter<uint32_t>
{
public:
CheckInCounter(){};
~CheckInCounter() override{};
/**
* @brief Returns the next Check-In counter Value to use
*
* @return uint32_t Check-in Counter value to use
*/
inline uint32_t GetNextCheckInCounterValue() { return (mCounterValue + 1); };
private:
/**
* @brief Get the Initial Counter Value for the Check-In counter
* Initial value is randomized for the Check-In counter
*
* @return uint32_t random value
*/
inline uint32_t GetInitialCounterValue() override { return chip::Crypto::GetRandU32(); }
};
} // namespace SecureChannel
} // namespace Protocols
} // namespace chip