摘要
本文首先介绍了一种为解决智能卡便携性问题而提出的新型智能卡结构模型-UCard;然后给出了UCard的可信计算基的具体构成;接着从UCard的两种工作形态即发卡态和用卡态详细分析了UCard在不同状态下其可信计算基的构成情况;最后,在讨论重构系统安全性问题的基础上,对多可信计算基的UCard安全性问题做了具体分析。
In this paper,the model of UCard （Universal Smart Card）,which is a new type of smart card designed to improve the portability of conventional smart cards,is described first.Then the components of the trusted computing base of UCard are presented.Meanwhile,according to UCard’s two working states of issuing and using,the components of its trusted computing base in different states are analyzed in detail.Finally,the security of a reconfigurable system is discussed and on the basis of that the security of UCard with a multi-trusted computing base is analyzed.
出处
《计算机工程与科学》
CSCD
2007年第2期135-138,共4页
Computer Engineering & Science
