Apparatus and method for secure transmission of data over an uns

Details Apparatus and method for secure transmission of data over an uns Apparatus and method for secure transmission of data over an uns

1987-09-25

1989-11-14

Buczinski, Stephen C.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 23, 380 25, 380 28, 380 29, 380 43, 380 50, H04L 902

Patent

active

048812633

ABSTRACT:
Apparatus and methods, readily adapted to interface with a standard data transmission network having an unsecure transmission channel, e.g., "Ethernet," for the provision of secure transmission of data over the network channel in a manner which is essentially transparent to the standard network devices and users thereof, are provided. Various encryption keys are generated and utilized within the system to disguise or encrypt information transferred between network nodes. The encryption keys are made known only to those network devices which are permitted to handle information encrypted with the encryption keys.

REFERENCES:
patent: 4182933 (1980-01-01), Rosenblum
patent: 4281216 (1981-07-01), Hogg et al.
patent: 4578531 (1986-03-01), Everhart et al.
patent: 4771458 (1988-09-01), Citta et al.
patent: 4771459 (1988-09-01), Jansen

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