Apparatus and method for inputting graphical password using...

Details Apparatus and method for inputting graphical password using... Apparatus and method for inputting graphical password using...

2011-08-02

2011-08-02

Moazzami, Nasser (Department: 2436)

Information security

Access control or authentication

Stand-alone

C713S182000, C713S185000, C713S186000, C345S661000, C345S173000

Reexamination Certificate

active

07992202

ABSTRACT:
Provided are an apparatus and method for inputting a graphical password that use representative pictures and elemental pictures of a graphic to form a graphical password and that receive the graphic via a wheel interface and a select button for user authentication. The apparatus includes: an input unit having a wheel interface and a select button; a display for displaying a graphic consisting of representative pictures and elemental pictures, and displaying a changed graphic in response to an input from the wheel interface; a memory for storing a graphical password of a user; and a controller for recognizing, when the select button is pressed, the graphic displayed on the display as a user-input graphical password, and determining whether the input graphical password matches the stored graphical password for user authentication. Thus, it is possible to increase the number of cases for a password using a wheel interface for a higher security level of an embedded system that has a low security level due to a limited type and length of letters input as a password.

REFERENCES:
patent: 5559961 (1996-09-01), Blonder
patent: 7616764 (2009-11-01), Varghese et al.
patent: 2010/0169958 (2010-07-01), Werner et al.

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