Telecommunications – Radiotelephone system – Security or fraud prevention
Reexamination Certificate
2006-04-24
2009-06-23
Corsaro, Nick (Department: 2617)
Telecommunications
Radiotelephone system
Security or fraud prevention
C455S410000, C380S247000, C380S270000, C380S277000, C713S171000, C713S172000
Reexamination Certificate
active
07551915
ABSTRACT:
A mobile node that is in communication with a correspondent node via a home agent initiates a process for establishing a route optimized mode of communication between the mobile node and the correspondent node. The mobile node sends a first initiating message to the home agent for delivery to the correspondent node and sends a second initiating message directly to the correspondent node. The mobile node secures the first initiating message by including an initiating-message authentication code that can be validated by the home agent or by an authentication server. The correspondent node responds by sending a first responsive message to the home agent for delivery to the mobile node and by sending a second responsive message directly to the mobile node. The home agent secures the first responsive message by adding a responsive-message authentication code that can be validated by the mobile node.
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Hirschman Charles Brent
Lipford Mark A.
Manning Serge M.
Chambers Tangela T.
Corsaro Nick
Sprint Spectrum L.P.
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