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Practical group signatures based on the knowledge signature

YANG Chen，MA Wen-ping，WANG Xin-mei   

  1. State Key Lab of ISN, Xidian University, Xi'an 710071, China
  • Received:2006-09-19 Revised:1900-01-01 Online:2007-02-24 Published:2007-02-24
  • Contact: YANG Chen

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Abstract: A new practical group signature scheme based on the knowledge signature is presented. By introducing Issuer (In charge of Issuing of group private keys and Joining of group members) and Opener(online trusted party in charge of opening and tracing of group signatures), the proposed scheme efficiently realizes the dynamic Joining and Revocation of group members, resolves the Opening and Tracing problems, and surmounts the defects of ordinary group signatures.

Key words: strong RSA assumption, knowledge signature , group signature

CLC Number: 

  • TP309
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