Method and apparatus for authentication in a wireless telecommunications system

A packet data serving node (PDSN) for communicating with a wireless telecommunications serving network, the PDSN comprising:

• a control processor for:
• generating an authentication challenge message;
• sending said authentication challenge message to a remote station;
• receiving an authentication challenge response message from the remote station, wherein said authentication challenge response message corresponds to said authentication challenge message;
• spoofing an authentication success message based on said challenge response message;
• sending said authentication success message to the remote station;
• receiving a second message from the remote station;
• and
• sending an authentication request message to an authentication server based on said second message.

A wireless packet data communication system comprising:

• a wireless telecommunications serving network for communicating wirelessly with a remote station;
• and
• a serving node (PDSN) for communicating with said wireless telecommunications serving network, the PDSN further comprising a control processor for:
• generating an authentication challenge message;
• sending said authentication challenge message to a remote station;
• receiving an authentication challenge response message from the remote station, wherein said authentication challenge response message corresponds to said authentication challenge message;
• spoofing an authentication success message based on said challenge response message;
• sending said authentication success message to the remote station;
• receiving a second message from the remote station;
• and
• sending an authentication request message to an authentication server based on said second message.

A method of establishing a communication link with a remote station comprising the steps of:

• sending an authentication challenge message to the remote station;
• receiving an authentication challenge response message from the remote station, wherein said authentication challenge response message corresponds to said authentication challenge message;
• sending, to the remote station, an authentication success message after receiving the authentication challenge response message without waiting for authentication verification;
• receiving a second message from the remote station;
• and
• sending an authentication request message to an authentication server based on said second message.