Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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A Scheme of Computational Time Reduction on Back-End Server Using Computational Grid

계산 그리드를 이용한 백엔드 서버의 계산시간 단축 방안

  • Received : 2012.06.15
  • Accepted : 2012.07.18
  • Published : 2012.12.31
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Abstract

We need privacy protection protocols, that satisfy three essential security requirements; confidentiality, indistinguishability and forward security, in order to protect user's privacy in RFID system. The hash-chain based protocol that Ohkubo et. al proposed is the most secure protocol, that satisfies all of the essential security requirements, among existing protocols. But, this protocol has a disadvantage that it takes very long time to identify a tag in the back-end server. In this paper, we propose a scheme to keep security just as it is and to reduce computation time for identifying a tag in back-end server. The proposed scheme shows the results that the identification time in back-end server is reduced considerably compared to the hash-chain based protocol.

RFID 시스템에서 사용자의 프라이버시를 보호하기 위해서는 기밀성, 불구분성, 전방 보안성 등의 3가지 필수 보안 요건을 만족시키는 프라이버시 보호 프로토콜이 필요하다. Ohkubo et. al[2]가 제안한 Hash-Chain 기반 프로토콜은 기존에 제안된 프로토콜 중에서 필수 보안 요건을 만족하는 안전한 RFID 프라이버시 보호 프로토콜이나, 백엔드 서버에서 태그를 판별하는 시간이 매우 길다는 단점이 있다. 본 논문에서는 Hash-Chain 기반 프로토콜의 안전성은 그대로 유지하면서 백엔드 서버에서 태그를 판별하는데 걸리는 계산 시간을 단축하는 방안을 제안한다. 제안 기법은 Hash-Chain 기반 프로토콜 기법보다 백엔드 서버에서의 계산 시간을 현저하게 단축시키는 결과를 보여준다.

Keywords

References

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