Abstract:
The present invention provides a method for authenticating a mobile unit in a wireless communication system. The method includes accessing information indicative of a random number and of a first key formed using a first cryptographic function. The method also includes forming second and third keys based on the random number, on the first key, and on second and third cryptographic functions that are different than the first cryptographic function. The method further includes transmitting data encrypted using the second and third keys over an air interface.
Abstract:
The present invention provides a method involving a tamper-resistant module and an authentication server. The method includes receiving, at the tamper-resistant module, information encrypted using a first secret key stored in the authentication server. The method also includes authenticating the authentication server in response to decrypting the information using a second secret key stored in the tamper-resistant module.
Abstract:
The present invention provides a method of route optimization for a proxy mobile Internet protocol. The method may include providing information indicative of a first proxy address based on a first address associated with a first access terminal and receiving information indicative of a second proxy address associated with a second access terminal. The method may also include establishing a communication link between the first access terminal and the second access terminal based on the first and second proxy addresses such that the communication link does not include a home agent.
Abstract:
The present invention provides a method of route optimization. The method may include obtaining a packet associated with a first address associated, by a home agent, with a first mobile unit and routing the packet to a second address associated with a second mobile unit along a forward link of a communication path that bypasses the home agent.