摘要： 提出了一种新方法来保护使用电子现金的计算机系统，电子现金是一个最近得到广泛研究的概念。该文的第一个贡献在于利用电子现金作为密码，使得在某种程序上这种密码成为对系统一次性密码的扩展。然而，一次性密码的缺陷我解决方案中不再出现。另一贡献是一种基于安全体系的电子现金，这一安全体系是用在诸如计并网络一类应用上的。可以论证，这种电子现金比方文献[3]中提出的解决方案更为简单高效．因为它不需要复杂的下层“映射基础结构”。

关键词: 计算机系统, 密码, 电子现金

Abstract: We in this paper proposcd a novel method to protect computer systems using the recenhy well studied notion, namely electroniccash. The first contribuhon of this paper is to use e-cash as password which is, to some extent, an extension to the traditional one-timepassword. However, their faults do not exist in our soluhon any more. Another contribution is a e-cash based security architecture for theapplicatiolls like computational grids. It is. arguably, simpler and more effcient than the solution proposed in [3] as no underlying andcomplicated "mapping infrastructure" is needed.

中图分类号: 

• TP393.0