摘要
文件系统目前已广泛应用于JavaCard应用中,由应用实现文件系统功能不但使空间利用效率降低,也给系统维护带来巨大困难。文章在JavaCard API调用机制和应用文件系统的基础上,提出一种银电联名卡应用的文件系统设计方法。该方法将文件系统分为文件树实现、访问实现和访问接口3个模块,并提供了一套应用访问接口(FSAPI),使得银行和电力等多个应用之间共享一套文件系统程序。该方法具有良好的扩展性,可大大节省卡片空间的占用。
File system has been widely used in the JavaCard applets, the function of file system implemented by applets not only reduces the space utilization efficiency, but also brings great difficulties to the maintenance. Based on the principle of JavaCard API and applet file system, the design of a Java co-Branded card applet file system is proposed. File System is divided into three parts： file-tree implementation, access implementation and access interface, and providing a set of file system application programming interface （FSAPI） to the application developers which can make multiple applications to share the same file system. The method has good scalability and can greatly save the occupancy of card space.
出处
《电力信息与通信技术》
2017年第6期73-76,共4页
Electric Power Information and Communication Technology
基金
国家电网公司科技项目"基于Java的高安全电力金融多应用智能卡关键技术研究"(526816160016)
