Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1994-02-28
1995-01-10
Cain, David C.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 45, H04L 900
Patent
active
053814797
ABSTRACT:
In a secure communication system 100, communication units in different communication groups may be simultaneously rekeyed over the air by having a managing key unit 101 generate a key packet 121. This key packet 121, which includes a unit key 122, a key alias 123, and a key representation 125, is transported to at least one fleet key unit 102. Upon receiving the key packet 121, the fleet key unit determines, based on the key alias, which communication units of which communication groups are to be rekeyed. Once this is determined, the key representation 125, which represents the unit key (encryption key) 122, is transmitted to the communication units, thus rekeying multiple communication units in multiple communication groups simultaneously.
REFERENCES:
patent: 5146498 (1992-09-01), Smith
patent: 5185795 (1993-02-01), Bright
patent: 5208859 (1993-05-01), Bartucci et al.
patent: 5301232 (1994-04-01), Mulford
patent: 5325432 (1994-07-01), Gardeck et al.
patent: 5329573 (1994-07-01), Chang et al.
Cutts Kevin
Gardeck Kevin
Green David A.
Cain David C.
Markison Timothy W.
Motorola Inc.
LandOfFree
Method for over the air rekeying of multiple communication group does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for over the air rekeying of multiple communication group, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for over the air rekeying of multiple communication group will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-857006