Method for secure pin entry on touch screen display
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United States of America Patent
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-
Apr 15, 2003
Grant Date -
N/A
app pub date -
Oct 1, 1999
filing date -
Oct 1, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for operating a combination touch pad and display screen device as a PINpad for entering a A plurality of numerical keypad layouts for the display screen are defined. Each keypad layout has a unique arrangement of decimal number locations differing from one layout to all others. For each PIN entry event a random one of the numerical keypad layouts is selected and displayed on the display screen.
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