The PlatForm Of Secure Application Based On B/S Structure

With the popularization of computers and Internet, the security of communication is payed attention to. The platform ofsecure application based on B/S structure emerges as the times require.It has three main part: security agent client (SAC), security proxy server (SPS) and certificate authority server (CAS) .Security socket Layer (SSL) protocol is extended between TCP/IP and HTTP to form a security channel to make those three parts be a full and rigorous security system. In addition, many cryptography algorithms are applied in the system to protect WEB application.The paper first introduces related knowledge about The platform ofsecure application based on B/S structure which includes protocols and cryptography algorithms; Secondly, introduces the function of components of the platform and how to implement them, particularly of the section that author developed (HTTTP interface module, digitalsign module, SAC main module and Log module) . In that section, the author describes how to use cryptography algorithms and application protocols to make the message carried by application protocols are absolutely security; and how to use SSL protocol to build a security channel between SAC and SPS. Finally, sets forth that SAC and SPS not only can cache/forward message, but also take measures to make sure that the message can not be wiretapping, tamper and deny.