Non-interfering in-band protocol-independent diagnostic scanning

Details Non-interfering in-band protocol-independent diagnostic scanning Non-interfering in-band protocol-independent diagnostic scanning

1985-06-17

1987-02-24

Cangialosi, Salvatore

Cryptography

Equipment test or malfunction indication

34082534, 34082536, 380 24, 380 29, H04L 900, G07D 700, G08B 522

Patent

active

046458719

ABSTRACT:
In a system in which data between a master and remote location is encrypted by using the DES algorithm, the status of security devices at the remote location is monitored from a centralized security station. A message indicative of the status of the security devices is used to generate an initializing vector (IV). This IV is then used to encrypt the data from the remote to the master.

REFERENCES:
patent: 4322576 (1982-03-01), Miller
patent: 4375637 (1983-03-01), Desjardins
patent: 4550311 (1985-10-01), Galloway et al.

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