US Patent 7127607 PKI-based client/server authentication

A client/server authentication system is disclosed. The system includes a filter, a plug-in, and an extension. The filter monitors sessions between a client and a server for proper authentication. The plug-in is coupled to the client and the server. The plug-in generates public and private key pairs, and receives and stores certificates. The extension is coupled to the filter. The extension generates script commands to cause the client and the server to perform required steps indicated by the filter.