| 摘要 |
An Authentication, Authorization, and Accounting (AAA) key, defining a first shared secret between a mobile node ( 108 ) and an AAA server ( 110 ), is acquired. A shared key becomes associated with the mobile node ( 108 ) and the VPN server ( 104 ). The shared key is formed, at least in part, from the AAA key. The shared key defines a second shared secret, which is between the mobile node ( 108 ) and the VPN server ( 104 ). A secure data tunnel is then established between the mobile node ( 108 ) and the VPN server ( 104 ) using the shared key. |
