多应用智能卡自由存储区管理的研究  

Research on the Free Storage Management of the Multi-Application Smartcards

作　　者：曹计昌[1] 吴烜辉[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：《计算机工程与科学》2007年第12期147-150,共4页Computer Engineering & Science

摘　　要：本文首先讨论了多应用智能卡存储空间的管理策略,分析了将自由存储区管理信息保存在EEPROM上的不足。根据多应用智能卡存储空间的分配特点,提出了不在EEPROM上保存自由存储区的管理信息,而直接根据文件链提供的相应文件信息计算推导出自由存储区的算法,并给出了算法的实现方法。仿真实验表明,由于在自由存储区的分配和回收过程中减少了对EEPROM的写操作,本算法有较快的执行速度。This thesis starts with the discussion of the storage management strategy for the multi-application Smart- cards. Then, it analyses the shortcomings of storing free storage management information on the EEPROM. According to the storage allocation features of multi-application Smartcards, it presents a new algorithm, that is, not to store the information on the EEPROM but to calculate free storage management information on the basis of the file chain. The simulation results show that this algorithm is more efficient, since there are less write procedures on the EEPROM in the process of storage al- location and recovery.

关 键 词：多应用智能卡 自由存储区 文件链 

分 类 号：TP333[自动化与计算机技术—计算机系统结构]