Rolling key resynchronization in cellular verification and valid

Details Rolling key resynchronization in cellular verification and valid Rolling key resynchronization in cellular verification and valid

1991-05-22

1993-08-31

Gregory, Bernarr E.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 23, 380 43, 380 48, 380 49, 379 59, 455 331, 455 541, 34082531, 34082534, H04L 908, H04L 932

Patent

active

052415988

ABSTRACT:
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 value and the mobile station is commanded to set the mobile station rolling key input to the same selected value. The mobile station will then set the mobile station rolling key input to the selected value in response to the command from the network.

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