摘要： 基于平面几何特性给出了一种不用通行字表的远程通行字认证方案，并对该方案的安全性和计算特性进行了分析。在该方案中，用户可以自己选择通行字，入侵者不能导出任何用户的通行字和任何保密信息。该方案能抵御重试攻击。此外，该方案与已有方案相比计算特性简单．

关键词: 远程通行字认证, 智能卡, 单向函数, 重试攻击

Abstract: Based on the plane geometric properties, this paper gives a remote password authentication scheme withoutpassword table, and analyses this scheme,s security and computing property. In the scheme, every user can choose hispassword by himself, intruders cannot derive any user,s password and any secret information. The scheme can withstand replaying attacks. Besides. comparing with the existing schemes, this scheme's computing pooperty is simpler.

中图分类号: 

• TP393