A NETWORK SECURITY AUTHENTICATION METHOD

摘要

The invention discloses a network security authentication method. The invention first sets an authentication key for a media gateway (MG) by a media gateway controller (MGC), and set a network protocol security package. Thus MGC sends security authentication request data to MG through the security package when the security authentication is processed. MG encrypts the request data using authentication key and feeds back the calculated result to MGC. MGC determines if the authenticated GC is legally based on the authentication result. Employing the above scheme can prevent illegal or forged devices from accessing to a network. In addition, since the authentication to MG is performed by the control of MGC, which has randomness of authentication, it has higher security authentication efficiency.