An automatic machine of application protocol recognition

The Internet users access the resource through the application protocol. To increase the application environment security, the user´s access request must be checked in the application enclave boundary security system. In order to build the application enclave boundary security system that can fit every kind of application protocol, be updated easily and has fine granularity access control function, we present the application protocol recognition automatic machine´s constructing algorithm on the session layer according to the format of the user´s access request.