07461399 is referenced by 168 patents and cites 11 patents.

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.

Title
PIN recovery in a smart card
Application Number
10/903898
Publication Number
7461399 (B2)
Application Date
July 30, 2004
Publication Date
December 2, 2008
Inventor
Norik Kocharyan
Burlington
MA, US
Darren Dupre
Westford
MA, US
Andrea Doherty
Cambridge
MA, US
Ryan Culbertson
Boston
MA, US
Ari Juels
Brookline
MA, US
Agent
BainwoodHuang
Assignee
RSA Security
MA, US
IPC
H04L 9/00
View Original Source