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

✍ Scribed by Zuhua Shao

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 63 KB
Volume: 86
Category: Article
ISSN: 0020-0190
DOI: 10.1016/s0020-0190(03)00224-2

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✦ Synopsis

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.

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✍ Shahrokh Saeednia 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 55 KB

In this paper, we propose a new society oriented scheme, based on the Guillou-Quisquater signature scheme. The scheme is identity-based and the signatures are verified with respect to only one identity. That is, the verifier does not have to know the identity of the co-signers, but just that of the