多应用智能卡的空间和时间优化

SPACE AND TIME OPTIMIZATION OF MULTI-APPLICATION SMART CARD

智能卡作为一种移动安全设备,其空间和数据处理能力都是非常有限的。然而智能卡的多应用集成需求要求更大的存储空间和更快的时间响应能力,因此需要对智能卡的使用进行优化。在分析智能卡特殊文件结构的基础上,给出了全面描述智能卡空间利用率和时间响应的计算公式,根据计算公式分析并提出了多应用智能卡空间和时间优化策略,最后给出了一个应用优化策略的例子。

Smart card is one kind of mobile security devices,which posseses limit space and weak computation capability. However,the multiapplication of smart card requires large storage space and short time performance, so the optimization of smart card application is necessary. Based on the analysis of smart card file structure ,the formulas for the ratio of smart card space usage and introduce the response time of smart card . According to the formulas,the policies for space and time optimization of multi-application smart card are prompted. At last, an example is shown to apply the optimization policies.