An improved touch screen encryption device and method is disclosed. The user selects information from prompts displayed on a touch screen. The improved device determines the input information based upon the location of the touch. The device encrypts the information--for example, the user's personal...http://www.google.fr/patents/US5768386?utm_source=gb-gplus-shareBrevet US5768386 - Method and system for encrypting input from a touch screen
Method and system for encrypting input from a touch screen
