Computer security system

Details Computer security system Computer security system

1993-04-28

1994-03-22

Swann, Tod R.

Cryptography

Cryptanalysis

380 25, 34082534, H04L 900

Patent

active

052972003

ABSTRACT:
A security system for a computer (10) having at least one communications port (12) for connection to peripheral devices, includes a card reader (14). A switching means (22) connected to the card reader and connectible to the communications port, is operable to connect the card reader to the communications port in response to a command including protected routines which generate said command to cause the switching means to connect the card reader to the communications port. Suitable software compares data from a card read by the card reader with authorisation data held in the computer, to enable or disable further operation of the protected routine(s).

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Anonymous; "Port Extender"; Research Disclosure; Jan. 1991, No. 321; K. Mason Publications.

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