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在WAI M2005会议上,J.Zhang等提出一个可变换限制验证人签名协议。他们认为,这个协议的安全性建立在CDH假设和哈希函数求逆的困难性上,说“据我们所知,这似乎是第一个不依靠随机问答模型的可证明安全的可变换限制验证人签名协议”。然而,在评论时发现,实际情况恰好相反,因为他们的证明建立在许多严重逻辑错误之上。
At the WAI M2005 conference, J. Zhang et al. Proposed a transformable limit verifier signature protocol. They argue that the security of this protocol is based on the difficulty of reversing the CDH assumption and hash function, saying “To our knowledge, this seems to be the first demonstrable and secure transformable constraint verification that does not rely on a randomized question-answer model Person signature agreement. ” However, the commentary found that the opposite was true, as their proof was based on many serious logic errors.