Design And Implementation Of COS System Of Double Interface Financial Social Security Card

With the development of the internet of things, big data, cloud computing, mobile internet and other information technologies, the applications of smart card are constantly expanding. Social security card integrates financial functions which will make people enjoy financial services and social security benefits more convenient. It plays a very important role for the stability of society and the construction of smart city. Finance social security card not only provides government services and public utilities but also provides the function of public services. With the upgrade of financial functions, the security of consumer has improved.The research is based on the project of work, the thesis is to design a chip operating system of social security card which has a financial function, the smart card is a kind of dual interface chip card and it provides social security applications and financial applications.This thesis first describes the background of smart card and the current research status of china and foreign countries. The four modules of data transmission, command interpretation, security algorithm and file management of the COS are also analyzed and then focus on the contactless data transmission and the contact data transmission of COS. The file system and security of finance social security card are also analyzed in detail. Finally, put the COS into the verification platform and chip to test the randomness of random number and the function of the COS.The final design of COS can compliant Social Security Card Specification and China Financial IC Card Specification(PBOC3.0) and also can support the environment of financial application and the environment of social security application. The two applications are independent each other. The COS has the firewall isolation mechanism of multi-application.