Design And Implementation Of The Key Module Of Social Security Card COS

Social Security Card is schemed by the Human Resources and Social Security Department uniformly. It is publicly issued by the local Social Security Departments for the field of labor and social security.It is a kind of the integrated circuit card and a specific application of smart card in the field of social security.A complete Social Security Card application system is composed by three parts of the Social Security Card, Terminal Equipment and Backend Server connecting with the Terminal Equipment. Social security card for the specific can be divided into a hardware part and software part. The hardware part of the social security card chip and card-based, is the carrier of the software part. The software part is the COS designed in the paper, it is the soul of Social Security Card.The paper first analyzes ISO/IEC7816Agreements and Social Security (personal)Card Norms which are closely related to the Social Security Card COS design. On this basis, a brief introduction to hardware and software platforms used by the COS development and a in-depth discussions on the needs of Social Security Card COS are made to finalize the overall design scheme. The focus of the paper is the in-depth analysis and specific design of the four modules as communication management module, command management module, security management module and file management module which are contained in the Social Security Card COS.The security management module and file management module as the core part of COS, this paper made a detailed analysis and in-depth study. For the security management module, a kind of security mechanisms in line with ISO/IEC7816Agreements and Social Security Card Norms is designed and implemented in the paper. The design of the file management module is the most flexible part in the COS, in-depth analysis of the advantages and disadvantages of the three design,based on the hardware resources and Social Security Card Norms requirements we select the most fit scheme and ultimately realize.In the end of this paper, we also give a brief introduction on the debugging and testing methods of Social Security Card COS.