Improvement of One Password-Based Authenticated Key Ezchange Protocol

摘要：

In 2006, Wu et al proposed a password-based authenticated key exchange protocol. It is considered much more from the practical perspective. There are three hash functions required. In this paper, we revisit and improve it. Our improvement only needs one hash function, without loss of any security. In contrast, the revisited protocol saves about 2/3 memories for the system parameters. The basic idea behind the improvement is that: a partial-preimage resistance one-way function should be as difficult to recover any substring as to recover the entire input.

关键词： password-based authenticated key ezchange GDH-Assumption hash function

作者: Lihua Liu Zhengjun Cao

作者单位: Department of Mathematics, Shanghai Maritime University Department of Mathematics, Shanghai University Departement Dinformatique,Universite Libre de Bruxel

会议类型: 国际会议

会议名称: Second International Symposium on Information Science and Engineering(第二届信息科学与工程国际会议)

会议地点: 上海

会议语种:英文

页码: 372-375

在线出版日期: 2009-12-26（万方平台首次上网日期，不代表论文的发表时间）