• Title, Summary, Keyword: Tag Response Loss Detection

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A Tag Response Loss Detection Scheme for RFID Group Proof (RFID 그룹증명을 위한 응답손실 감지기법)

  • Ham, Hyoungmin
    • The Journal of the Korea Contents Association
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    • v.19 no.9
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    • pp.637-645
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    • 2019
  • The RFID group proof is an extension of the yoking proof proving that multiple tags are scanned by a reader simultaneously. Existing group proof schemes provide only delayed tag loss detection which detects loss of tag response in a verification phase. However, delayed tag loss detection is not suitable for real-time applications where tag loss must be detected immediately. In this study, I propose a tag response loss detection scheme which detects loss of tag response in the proof generation process quickly. In the proposed scheme, the tag responds with the sequence number assigned to the tag group, and the reader detects the loss of the tag response through the sequence number. Through an experiment for indistinguishability, I show that the sequence number is secure against an analyzing message attack to distinguish between specific tags and tag groups. In terms of efficiency, the proposed scheme requires fewer transmissions and database operations than existing techniques to determine which tags response is lost.