한국컴퓨터정보학회논문지 (Journal of the Korea Society of Computer and Information)

  • 제25권1호
  • /
  • Pages.87-92
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  • 2020
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  • 1598-849X(pISSN)
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  • 2383-9945(eISSN)
한국컴퓨터정보학회 (Korean Society of Computer Information)
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Blockchain-based Lightweight Mutual Authentication Protocol for IoT Systems

  • Choi, Wonseok (School of Computer Science and Engineering, Kyungpook National University) ;
  • Kim, Sungsoo (Department of Aeronautical Software Engineering, Kyungwoon University) ;
  • Han, Kijun (School of Computer Science and Engineering, Kyungpook National University)
  • 투고 : 2019.11.18
  • 심사 : 2020.01.14
  • 발행 : 2020.01.31
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초록

IoT 네트워크 환경에서는 서버 등의 고성능 장치부터 각종 센서, 수동형 RFID 등 저사양 장치까지 다수의 여러 장치들이 연결되어 있다. 그렇기에 불법적인 공격에 노출되어 있으며 데이터를 암호화하여 통신을 수행하여야 한다. 암호화 알고리즘으로 대칭키, 공개키 암호화 및 해시 기법 등을 사용할 수 있으나 저성능 IoT 디바이스는 암호화 프로세스를 처리하기에는 적합하지 않는 하드웨어 성능을 가지고 있어 이러한 방법을 채택할 수 없는 경우가 발생한다. 본 논문에서는 블록체인 시스템과 연동한 경량 상호 인증 프로토콜을 적용하여 IoT 환경에서 저성능 단말장치의 안전한 통신을 보장하는 인증 기법을 제안한다.

Various devices, which are powerful computer and low-performance sensors, is connected to IoT network. Accordingly, applying mutual authentication for devices and data encryption method are essential since illegal attacks are existing on the network. But cryptographic methods such as symmetric key and public key algorithms, hash function are not appropriate to low-performance devices. Therefore, this paper proposes blockchain-based lightweight IoT mutual authentication protocol for the low-performance devices.

키워드

참고문헌

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