Fair Contract Signing Protocol Based on Publicly Verifiable Secret Sharing
Jiangxiao Zhang · 2009
Through introducing n off-line semi-trusted third parties,a new fair contract signing protocol was proposed.This protocol uses publicly verifiable secret sharing(PVSS)principle not only to realize the signers' privacy protection,but also reduce probability that one party conspires with off-line semi-trusted third parties to gain another party's signature,thus causes the contract signing protocol to have a better fairness.Moreover,the protocol also through the use of multiple signature technology,causes the signers to obtain finally the contract which contains both party's signatures.Of course,that is the outstanding feature of traditional paper contract.Therefore,the protocol proposed in this article has certain usability.