Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1991-02-27
1992-11-17
Gregory, Bernarr E.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 43, 380 49, H04L 914, H04L 908
Patent
active
051649861
ABSTRACT:
Formation and sending of rekeying messages (305, 415, 515, and 605) in an encrypted communication system with over-the-channel rekeying of communication units is performed by a KMC, key management controller (101). The KMC (101) forms messages to provide new keys (1541), zeroization information (1549), and key indexing information (1543) to communication units (107), and to provide keyloader upload data (1563). Acknowledgments and rekey requests are also handled between the KMC (101) and communication units (107).
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Gregory Bernarr E.
Lukasik Susan L.
Motorola Inc.
Parmelee Steven G.
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