Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1994-01-24
1996-01-09
Gregory, Bernarr E.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 4, 380 9, 380 21, 380 23, 380 49, 380 50, H04L 900, H04L 932
Patent
active
054835968
ABSTRACT:
A compact, physically secure, high-performance access controller (16, 18) is electrically connected to each access-managed resource (12, 14) or group of resources (10) in a computer system. Whenever access managed resources attempt to establish communications, their associated access controllers exchange sets of internally generated access authorization codes (106, 112, 120, 132, 202, 208, 216, 270, 272) utilizing protocols characterized by multiple random numbers, resource authorization keys, serial number (48, 72) verification, and session authorization keys. Each new session employs different encryption keys derived from multiple random numbers and multiple hidden algorithms. Tables of authorized requesting and responding resources are maintained in a protected memory (34, 38) in each access controller. An authorization table building procedure is augmented by an optional central access control system (56) that employs a parallel control network (62, 64, 66) to centrally manage the access control tables in an access-controlled system of resources.
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Rosenow Peter D.
Trafton Roger M.
Gregory Bernarr E.
Paralon Technologies, Inc.
Rives Stoel
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