Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1993-07-01
1995-04-04
Gregory, Bernarr E.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 23, 380 25, 380 49, 380 50, H04L 908
Patent
active
054044049
ABSTRACT:
Within a communication system, updating encryption key information in communication units of a particular communication group begins when a key management terminal transmits a key update message for the particular communication group to a communication resource allocator. Upon receipt of the key update message, the communication resource allocator determines a rekey session number from the key update message and allocates a communication resource for the particular communication group. Each active communication unit of the particular communication group receives the rekey session number and compares it to a stored rekey session number. If the numbers do not substantially match, the communication unit affiliates with the allocated communication resource to receive updated encryption key information from the key management terminal.
REFERENCES:
patent: 4993067 (1991-02-01), Leopold
patent: 5093860 (1992-03-01), Steinbrenner et al.
patent: 5146497 (1992-09-01), Bright
patent: 5150408 (1992-09-01), Bright
patent: 5164986 (1992-11-01), Bright
patent: 5185795 (1993-02-01), Bright
patent: 5208859 (1993-05-01), Bartucci et al.
patent: 5325432 (1994-06-01), Gardeck et al.
Gregory Bernarr E.
Markison Timothy W.
Motorola Inc.
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