公平的知识签名

Fair Signature of Knowledge

针对一般的知识签名不能避免隐秘通信的发生这一问题,提出了知识签名的公平性概念,并给出了严格的定义.利用知识的公平的零知识证明,构造了一个公平的知识签名方案,最后证明了此签名方案可有效地保证公平性,从而避免隐秘通信的发生.

Traditional definition of signature of knowledge can not prevent steganographic communication. To solve this problem, we introduce and formally define the notion of fairness of the signature of knowledge. We then construct a fair signature of knowledge scheme by use of fair zero-knowledge proofs of knowledge, and finally prove that this scheme indeed guarantees the fairness and can efficiently prevent steganographic communication.