Telecommunications – Radiotelephone system
Patent
1995-10-10
1998-08-11
Cumming, William
Telecommunications
Radiotelephone system
380 23, H04Q 738, H04Q 720
Patent
active
057941394
ABSTRACT:
Apparatus and method for automatically generating an authentication key (A-Key) in a mobile station wherein the mobile station periodically receives random numbers from a base station, and automatically generates the authentication key from a received random number and from mobile station identification data stored in the mobile station. The mobile station identification data may include the electronic serial number of the mobile station, a user selected value, and a cellular system selected value. In addition, mixing registers may be utilized by an encoding algorithm, such as the CAVE algorithm, for encoding the random numbers and the identification data to automatically generate the mobile station authentication key.
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Akahane Masaaki
Anderson Geoffrey
Douma Peter
Mizikovsky Semyon
Yasuda Hiroshi
Cumming William
Frommer William S.
Sony Corporation
Sony Electronics Inc.
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