基于CCID类的智能卡USB接口模块的设计与实现

he smart cards are widely used in modern society, but the traditional 7816 interface has been hard to meet the higher and higher data communication requirement, as the development of information technology and the increment of requirement of operators bring larger memory capacity and higher CPU frequency. Therefore, this paper presents a new design of smart card USB interface module, which integrates the CCID into smart card chip operating system to speed up data communication based on the features of USB. We implemented this module on a real card, testing its data rates to compare with the same card using 7816 interface.