Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Central trusted authority provides computer authentication
Reexamination Certificate
2008-07-29
2010-11-30
Pyzocha, Michael (Department: 2437)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Central trusted authority provides computer authentication
C713S168000, C726S004000, C726S014000, C726S021000, C709S228000
Reexamination Certificate
active
07844815
ABSTRACT:
An apparatus and method for selecting a security association timer between user equipment and a control entity in a communication system are disclosed. The apparatus includes a transmitter configured to transmit a registration request message to a control entity in a communication system, whereby the registration request message is configured to request registration with the control entity. The apparatus further includes a receiver configured to receive an authentication challenge including a temporary timer, whereby the temporary timer is configured to set a time duration for the apparatus to respond to the authentication challenge. The receiver is further configured to receive an acknowledgement message including a security association timeout value in response to the transmitted registration message, whereby the security association timeout value includes a set time length of a security association equal to a registration time length set for registration of the apparatus. The transmitter is further configured to transmit a registration authentication message to the control entity before expiration of the temporary timer.
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Bajko Gábor
Haukka Tao
Callahan Paul
Mintz Levin Cohn Ferris Glovsky and Popeo P.C.
Nokia Corporation
Pyzocha Michael
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