A method of authenticating a user of a computing device is proposed, together with computing device on which the method is implemented. In the method a modified base image is overlaid with a modified overlay image on a display and with each execution of the method, at least one of a position of a pre-selected base image reference point on the modified base image and a position of a pre-selected overlay image reference point on the modified overlay image is varied. Positive authentication is indicated in response to an input resulting in the base image reference point on the modified base image being aligned with the overlay image reference point on the modified overlay image.

Claims

18 · 3 independent · depth 2

18 granted claims

›1.independentOne or more non-transitory computer readable media having computer readable instructions stored thereon for authenticating a user of a computing devic…+9

›2.↳ 1The non-transitory computer readable media of claim 1, wherein generating the modified base image comprises making a copy of the base image.d2

›3.↳ 1The non-transitory computer readable media of claim 1, wherein generating the modified overlay image comprises making a copy of the overlay image.d2

›4.↳ 1The non-transitory computer readable media of claim 1, wherein generating the modified base image comprises randomly altering the position of the base…d2

›5.↳ 1The non-transitory computer readable media of claim 1, wherein the input comprises a movement of the modified base image and a movement of the modifie…d2

›6.↳ 1The non-transitory computer readable media of claim 1, wherein the input comprises a sequence of movements of the modified base image and the modified…d2

›7.↳ 1The non-transitory computer readable media of claim 1, wherein generating the modified base image comprises randomly altering an appearance of the bas…d2

›8.↳ 1The non-transitory computer readable media of claim 1, wherein generating the modified base image comprises distorting the base image.d2

›9.↳ 1The non-transitory computer readable media of claim 1, wherein generating the modified overlay image comprises randomly altering the appearance of the…d2

›10.↳ 1The non-transitory computer readable media of claim 1, wherein the overlay image is a grid of images and generating the modified overlay image compris…d2

›11.independentA method of authenticating a user of a computing device, the computing device having a memory storing a base image and an overlay image, the base imag…+2

›14.independentA computing device comprising:na processor;a display;a user interface for receiving user input; andone or more non-transitory computer readable media …+4

Classifications

5 codes

IPC · International Patent Classification

Section G — Physics

G06F7/04

Section H — Electricity

H04L9/32

USPC · US Patent Classification

726/2726/27713/168

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Pendency

2.7 y

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non-final + final

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no RCE

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Examiner

Mohammad W Reza

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1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20120159594 A1	21 Jun 2012

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