Rolling key resynchronization in cellular verification and validation system
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United States of America Patent
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Aug 31, 1993
Grant Date -
N/A
app pub date -
May 22, 1991
filing date -
May 22, 1991
priority date (Note) -
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status (Latency Note)
Importance
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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