Telecommunications – Radiotelephone system – Security or fraud prevention
Reexamination Certificate
2006-06-19
2010-06-01
Feild, Joseph H (Department: 2627)
Telecommunications
Radiotelephone system
Security or fraud prevention
C455S410000, C455S404200
Reexamination Certificate
active
07729686
ABSTRACT:
Signal, e.g., message, security techniques are described for wireless systems. A first signal is received by an access node via a wireless link. The signal includes a first authenticator that was generated by the transmitting device, e.g., wireless terminal. The access node determines from an attribute of the signal at least some information known to both the access node and transmitting device but which was not transmitted as part of the message content. The determined information was used by the wireless terminal in generating the first authenticator. The access node sends at least a portion of the first signal including the first authenticator and the determined information to another entity. The entity compares the first authenticator to a second authenticator it generates from the determined information and a secure key which it shares with the transmitting device to determine if the first and second authenticators match.
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Corson M. Scott
Laroia Rajiv
Park Vincent
Uppala Sathyadev Venkata
Vanderveen Michaela
Feild Joseph H
Nguyen Huy D
Qualcomm Incorporated
Straub Michael P.
Tam Kam T.
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