Computer network encryption/decryption device

Details Computer network encryption/decryption device Computer network encryption/decryption device

1994-09-13

1995-08-15

Gregory, Bernarr E.

Cryptography

Key management

Having particular key generator

380 9, 380 50, H04L 900

Patent

active

054427088

ABSTRACT:
A computer network encryption/decryption device includes at least one microprocessor, microprocessor support hardware, at least two network ports for connecting to upstream and downstream networks, memory hardware for storing program, configuration, and keylist data, and data encryption/decryption hardware. Both network ports have the same network address, making the device transparent to the local area network in which it is spliced. The device operates by selectively encrypting or decrypting only the data portion of a data packet, leaving the routing information contained in the header and trailer portions of the data packet unchanged.

REFERENCES:
patent: 4159468 (1979-06-01), Barnes et al.
patent: 4160120 (1979-07-01), Barnes et al.
patent: 4829560 (1989-05-01), Seth-Smith et al.

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