| The subject comes from the Golden Shield Project "mobile data security access and authentication management system in public net" of Henan Provincial Public Security Bureau.As a subsystem of mobile police system,GPRS/CDMA security access system complete the secure transmission of information for mobile terminals through public mobile communication network to the Public Security information network.TLS security transmission agreements are used in the system.In this paper many reseach works have been done on WPKI system infrastructure,WAP (wireless Application Protocol) standtard and TLS(Transport Layer Security) protocol.By analyzing the WAP Gateway insecurity spot of WPKI system which is based on WAPl.x protocol stack,a new security communication model for WPKI system based on WAP2.0 is proposed,which used TLS protocol instead of WTLS protocol to provide improved end-to-end security between the Client and Server.This paper proposed an overall scheme of security access system, focused on the reseach and design of various functional modules in the Access Gateway,in which the security middleware based on CORBA technology was applied.Its advantages included that implementing of two-way identity authentication and data encryption transmission between the entities based on PKI technology,which guaranteed the confidentiality, integrity and non-repudiation of information transmission;shielding the complexity of the security technology to upper floor,so it can be expanded and is easy to use.In this paper in-depth study of the security middleware architecture has been done ,focused on the reseach and design of security services based on WAP2.0 in the Security Service Layer,so as to that the security middleware can be used in wireless networks better.As well as implementing the Cipher Service Provider Module, basically completed the function of data encryption and decryption, digital signature, and certificate services in wireless security middleware. |
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