블록체인 DPoS 합의 알고리즘을 활용한IoT 장치 관리 시스템 개발
Development of IoT Device Management System Using Blockchain DPoS Consensus Algorithm
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초록
다양한 IoT 기기로 구성된 스마트 홈에서는 편리하고 효율적인 서비스를 제공한다. 그러나 사적인 영상과 음성과 같은 민감한 정보까지 수집 및 처리될 뿐 아니라 인터넷을 통해 공유될 수 있어서 보안이 중요하다. 이러한 스마트 홈 IoT 장치 관리를 위하여 데이터 무결성 및 안전성을 제공하기 위해 블록체인 기술을 활용하고자 한다. 본 논문에서는 기존 검증을 위한연산을 지속적으로 수행해야 하는 PoW(작업 증명) 블록체인에서 아닌 네트워크에 축적된 지분을 통해 블록을 검증하는PoS(지분 증명), 그 중에서 확장성 부분을 해결하고자 하는 DPoS(위임 지분 증명) 방식으로 스마트 홈 IoT 환경에 적절한보안용 블록체인 체계를 제안한다. DPoS 체계인 EOSIO 기반으로 제안시스템을 구현하여 실현가능성을 보이고, 성능평가를통해 트랜잭션 처리 속도 측면의 성능 향상을 보이고자 한다.
Abstract
Smart home with various IoT devices provides convenient and efficient services. However, security is importantbecause sensitive information such as private video and audio can be collected and processed, as well as shared overthe Internet. To manage such smart home IoT devices, we use blockchain technology that provides data integrity andsecure management. In this paper, we utilize a PoS(Proof of Stake) method that verifies the block through theaccumulated stake in the network rather than the computation power, out of the PoW(Proof of Work) block chain, inwhich the computation for the existing verification must be continuously performed. Among them, we propose ablockchain based system with DPoS(Delegated Proof of Stake) method to actively solve the scalability part, forsecurity that is suitable for smart home IoT environment. We implement the proposed system with DPoS basedEOSIO to show realization, and we show performance improvement in terms of transaction processing speed.
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