• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2006, Vol. 28 ›› Issue (1): 119-121.

• 论文 • 上一篇    下一篇

UCard中动态地址映射的实现方法研究

曹计昌 邱鹏 张斌   

  • 出版日期:2006-01-01 发布日期:2010-05-20

  • Online:2006-01-01 Published:2010-05-20

摘要:

本文根据智能卡应用的现状和发展趋势,分析目前解决方法存在的问题,提出了一种新的智能卡模型-UCard。通过分析其核心的地址映射问题,给出了基于块选以及基于可编 程逻辑器件的两类方法,分别针对其实现,做了详细的分析和研究,指出了其中的关键技术和各自的优缺点。对前一种方法进行了数学推导,并给出了实现范例;对后一种方 方法给出了原理图和伪码表示,采用VHDL语言进行了仿真实验,并取得了如期的效果。

关键词: 智能卡 UCard COS 动态地址映射

Abstract:

According to the status quo and trend of Smart Card applications, the problems of current solutions are analyzed in this paper, and then a new model o f Smart Card, UCard, is presented. After analyzing its kernel address mapping, we give two methods of implementation, one is based on block choice, and the other is based on programmable logic devices. Considering their implementations,we give a detailed analysis and research, the kernel technology and   advantages/disadvantages of each one. The mathematical reasoning of the first method is done,and an example is given. For the second one, the principle   chart and pseudo code are given, and it is implemented by VHDL, and the anticipant result is achieved from the simulation.

Key words: Smart Card;UCard, COS;dynamic address mapping