Study And Implementation Of Smart Card Operating System Security Module

With the development of infomition technology and the improvement of requirements of convenient applications, Smart Cards are wildly used in different applications that require strong security protection as well as low cost demand, such as authentication, banking, and transportation etc.. In a conclusion, the appearance and development of Smart Card have driven and will further drive the revolutionary renovation of mankind lifeway in the future. It will be the most important, most convenient and most indispensable tool in the 21st century. So, we should pay more attention to the technology of Smart Card.In all technology of Smart Card, Smart Card Operiting System (COS) is the highlight the most. The purpse of this paper is to study COS especially its security module, and designe and implement a secure and flexible COS with low cost demand.First of all, the article introduce the basic principles and the application background of Smart Card technology, make readers have an overall and basic understanding to the technology of Smart Card; Later probe into several pieces of key module of COS in detail, including the operation principle of COS, file system, transmission module and procedure of command process; Further investigate the security management module of COS also in chapter 4, including security structure , cryptography and key management etc.; Finally , implement SMCOS base on SOSSE and ATmegal6 on the basis of studying above.In the design of SMCOS, introduce the software and hardware developing platform of SMCOS at first, then describe the system characteristic and hierarchical structure, tell the course of design and implementation of the software system of the SMCOS finally, mainly tell software architecture, design method to command interpreter, transmission module and file management, especially carry on deep explanation and discussion to the security environmental management of SMCOS, design the secure pseudorandom number generator according to systemic characteristic; Implement AES cryptographic algorithm, and optimize in term of the characteristics of AVR platform, make it reach the faster speed of encryption in case...