Multi-party Concurrent Signatures based on Short Ring Signatures

摘要：

In order to resolve the multi-party fair-exchange problem of the e-commerce, a new model of multi-party concurrent signatures based on short ring signatures was proposed. Using the technique of bilinear pairings, a concurrent signature scheme for multi-users which we prove secure in the random oracle model was constructed. Since the short ring signature is constructed based on dynamic accumulators, it has the advantage of constant-size signatures and simple public keys. Compared with the scheme proposed by Tonien, the signature size of our scheme has been shortened to O(n) . So the open problem questioned by Tonien is solved.

关键词： fair-exchange multi-party concurrent signatures short ring signatures bilinear pairings dynamic accumulators

作者: WANG Ling-ling

作者单位: College of Information Science &Technology Qingdao University of Science &Technology Qingdao, Shandong 266061

会议类型: 国际会议

会议名称: 2010 IEEE International Conference Conferenhce on Wireless Communications,Networking and Information Security(2010 IEEE 无线通信、网络技术与信息安全国际会议 WCNIS)

会议地点: 北京

会议语种:英文

页码: 1-3

在线出版日期: 2010-06-25（万方平台首次上网日期，不代表论文的发表时间）