Cryptanalysis of Two Proxy Blind Signatures based on DLP

摘要：

Proxy blind signature technology integrates the properties of both the blind signature and proxy signature; it can be adopted in applications such as e-cash or e-commerce, etc. In this paper, cryptanalysis of two blind proxy blind signature schemes is made, which show the first scheme doesn’t satisfy the property of unlinkability and the second suffers from a kind of forgery attack. And to overcome the weakness of the previous schemes, a new proxy blind signature scheme based Discrete Logarithm Problem (DLP) is presented. It is proved that this scheme is more secure than the previous schemes.

关键词： proxy blind signature DLP forgeability linkability

作者: Tan Zhan Yong-ping Zhang

作者单位: School of computer science and technologyChina University of mining and technology, CUMTXuzhou, Chin School of computer science and technology China University of mining and technology, CUMT Xuzhou, Ch

会议类型: 国际会议

会议名称: 2010 3rd International Conference on Advanced Computer Theory and Engineering(2010年第三届先进计算机理论与工程国际会议 ICACTE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-08-20（万方平台首次上网日期，不代表论文的发表时间）