Graphical password methodology for a microprocessor device accepting non-alphanumeric user input

  • US 6,686,931 B1
  • Filed: 08/20/2001
  • Issued: 02/03/2004
  • Est. Priority Date: 06/13/1997
  • Status: Expired due to Term
First Claim
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1. In a computing device having a set of input keys including non-alphanumeric keys, a method for controlling access to the computing device, the method comprising:

  • recording a user-provided sequence of non-alphanumeric key strokes from said non-alphanumeric keys;

    storing the recorded sequence of non-alphanumeric key strokes as a graphical password, so that said graphical password itself comprises a sequence of non-alphanumeric key strokes from the set of input keys;

    upon request from a user for access to the computing device, prompting the user to enter the graphical password; and

    providing access to the computing device only if the user enters a sequence of key strokes which matches that of the sequence of non-alphanumeric key strokes stored as the graphical password.

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