A system for the resynchronization of a rolling key used as an input among a plurality of inputs to an authentication algorithm executed in a mobile station and in a radio network providing service to the mobile station. In one aspect of the system, the network rolling key input is set to a selected...http://www.google.de/patents/US5241598?utm_source=gb-gplus-sharePatent US5241598 - Rolling key resynchronization in cellular verification and validation system
