Data encrypted touchscreen

Details Data encrypted touchscreen Data encrypted touchscreen

1997-03-24

1999-10-19

Swann, Tod R.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 23, 380 52, 380 59, 705 16, 705 18, 705 25, 710 67, H04K 100

Patent

active

059701463

ABSTRACT:
A secure touchscreen is provided, comprising a touchscreen and touchscreen controller for receiving inputs, a system controller, an encryption module and two external buses. The controller, system controller and encryption module are embedded in a mass of material to prevent unauthorized access of the inputs. Furthermore, the first external bus is used to operate and communicate with an external system in an encrypted mode, while the second external bus is used to operate and communicate with the external system in a normal mode.

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