Universal authentication device for use over telephone lines

Details Universal authentication device for use over telephone lines Universal authentication device for use over telephone lines

1994-03-31

1995-04-11

Kuntz, Curtis

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

380 23, 380 28, 235380, 235382, 34082534, 379 91, 379144, H04M 1100

Patent

active

054066190

ABSTRACT:
This invention relates to a universal authenticator for use with an ordinary telephone station over an ordinary telephone line. The authenticator, which is the size and shape of a credit card, receives a query number by being held against the receiver of the telephone station and receiving audio signals in a receiver. Using its own key, it transforms the received query number into an individualized response number which it transmits via its speaker when the authenticator is held against the microphone of the telephone station.

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GSM (European Global Systems for Mobile Communications) 02.09--version 3.0.0--"Security Aspects", Feb. 15, 1988.
GSM (European Global Systems for Mobile Communications) 03.02--version 3.3.0--"Security Related Network Functions", Feb. 21, 1990.

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