Data communication method and system

摘要

An encrypted communication method, and a system for the method, can transfer a session control message (PR) designated by identification information (65) inherent to an application to a connection destination through a session management server. When an application program of a client (CL) or encrypted communication software issues a connection request in the form designating an application server (SV) by identification information (65) inherent to each application, the identification information is automatically changed to a desired address-of-record (AOR) capable of domain identification and a transfer destination domain of a reception message is judged.