Patent 7461399 was granted and assigned to RSA Security on December, 2008 by the United States Patent and Trademark Office.
A method of controlling access to resources on a smart card, the method involving: providing a list of n questions for presentation to the user, where n is an integer; receiving from the user answers to questions among the list of n questions; determining how many of the received answers are correct; and if a sufficient number of the n questions was answered correctly, granting access to the resources on the smart card.