2008•Computer Engineering and Applications JournalRequires access

New membership revocation scheme in FI05 group signature

Qiaoliang Li

Abstract

A new membership revocation method based on the FI05 group scheme is provided.The new scheme is implemented by a new dynamic accumulator.The security of the accumulator is based on the elliptic-curve discrete logarithm problem,and is proved.The cost of revoking a member and updating witness is smaller than the previous accumulators.The security of the new group signature scheme is proved.

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Key concepts: Revocation, Accumulator (cryptography), Group signature, Discrete logarithm, Scheme (mathematics), Computer science, Hydraulic accumulator, Group (periodic table)