Cryptanalysis of "an identity-based society oriented signature scheme with anonymous signers"

Authors:
Zuhua Shao
Affiliations:
Department of Computer and Electronic Engineering, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310012, People's Republic of China
Venue:
Information Processing Letters
Year:
2003

Citing 5
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An identity-based society oriented signature scheme with anonymous signers

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Abstract

In this paper, we show that the identity-based society oriented signature scheme with anonymous signers proposed by saeednia is insecure. If some members of a given group leave that group or if some new members join the group, their secret keys would be revealed. We also propose a simple way to fulfill the task of the identity-based society oriented signature scheme with anonymous signers.