论文信息 - On the Security of ID-Based One-Off Blind Public Key

On the Security of ID-Based One-Off Blind Public Key

ct-ID-based cryptography is an important cryptographic system. Recently, by combining RSA and Fiat-Shamir identity authentication scheme, an ID-based one-off Blind public key was proposed to protect user's privacy in [1] , and the authors claimed that the scheme had anonymity and unforgeability, In this paper, we give security analysis to the scheme of [1], and show this scheme has linkability and universal forgery. We make two signatures which were produced by an individual constitute a relation and any user can forge a signature on arbitrary message without being tracing by the trust center.

Jianhong Zhang | Xue Liu

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