UCard中动态地址总线的安全稳定性  

Analysis of security and stability of dynamic address bus in UCard

作　　者：曹计昌[1] 冯国平[1] 

机构地区：[1]华中科技大学计算机科学与技术学院,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2006年第11期48-51,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

摘　　要：对UCard动态地址总线的安全性、稳定性进行了分析,给出了动态地址总线的安全稳定性的数学模型,讨论了实现动态地址总线安全稳定性的设计方法,包括定时查询、自锁电路以及地址总线信号观测等方法,重点讨论了实现稳定性的方法———自锁电路和地址总线信号观测方法.自锁电路的方法实现简单且有效,地址总线信号观测方法实现复杂但可靠性高,较好地解决了UCard动态地址总线的安全稳定性问题.The security and stability of dynamic address bus in （Universal smart card） UCard was analyzed. A mathematic model of the security and stability is proposed. Then several approaches to achieve the security and stability, including time inquiring, self lock circuit and dynamic address bus observer are analyzed. The approach of self-locking is simple to implement and effective, while the approach of dynamic address bus observer is difficult but has high reliability. In general, these approaches gratly improve the security and stability of dynamic address bus in UCard.

关 键 词：智能卡 动态地址总线 安全性 稳定性 地址总线观测器 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]