Visual or touchscreen password entry

1. One or more non-transitory computer readable media having computer readable instructions stored thereon for authenticating a user of a computing device, the computing device having a memory storing a base image and an overlay image, the base image having a base image reference point, and the overlay image having an overlay image reference point, which when executed by a processor direct the computing device to:

generate a modified base image;

generate a modified overlay image;

display, on a display, the modified base image overlaid by the modified overlay image;

receive an input for moving one of the modified base image and the modified overlay image;

move the one of the modified base image and the modified overlay image if a criterion for movement of the one of the modified base image and the modified overlay image is met, the criterion for movement being that the input is a touch at a location other than the overlay image reference point; and

in response to alignment of the base image reference point on the modified base image with the overlay image reference point on the modified overlay image at a point on the display after the move, indicate positive authentication.

2. The non-transitory computer readable media of claim 1 , wherein the criterion for movement is that the input is a touch at a location other than both the base image reference point and the overlay image reference point.

3. The non-transitory computer readable media of claim 1 , wherein the criterion for movement further comprises that the touch is at a designated location on one of the modified base image and the modified overlay image.

4. The non-transitory computer readable media of claim 1 , wherein the criterion for movement further comprises that the input is a touch at a grid line on the overlay image.

5. The non-transitory computer readable media of claim 1 , wherein the criterion for movement further comprises that the input is a touch at a tab on the overlay image.

6. The non-transitory computer readable media of claim 1 , wherein the instructions further direct the computing device to randomly alter whether the overlay image or the base image moves in response to the input.

7. A 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 image having a base image reference point, and the overlay image having an overlay image reference point, the method comprising:

generating a modified base image;

generating a modified overlay image;

displaying, on a display, the modified base image overlaid by the modified overlay image;

receiving an input for moving one of the modified base image and the modified overlay image;

moving the one of the modified base image and the modified overlay image if a criterion for movement of the one of the modified base image and the modified overlay image is met the criterion for movement being that the input is a touch at a location other than the overlay image reference point; and

in response to alignment of the base image reference point on the modified base image with the overlay image reference point on the modified overlay image at a point on the display after the moving, indicating positive authentication.

8. The method of claim 7 , further comprising randomly altering whether the overlay image or the base image moves in response to the input.

9. The method of claim 7 , further comprising:

if the input is a touch on the base image reference point, moving the overlay image.

10. The method of claim 7 , wherein the criterion for movement is that the input is a touch at a location other than both the base image reference point and the overlay image reference point.

11. The method of claim 7 , wherein the criterion for movement further comprises that the touch is at a designated location on one of the modified base image and the modified overlay image.

12. A computing device comprising:

a processor;

a display; and

one or more non-transitory computer readable media having computer readable instructions stored thereon for authenticating a user of the computing device, the computing device having a memory storing a base image and an overlay image, the base image having a base image reference point, and the overlay image having an overlay image reference point, which when executed by the processor direct the computing device to generate a modified base image; generate a modified overlay image; display, on the display, the modified base image overlaid by the modified overlay image; receive an input for moving one of the modified base image and the modified overlay image; move the one of the modified base image and the modified overlay image if a criterion for movement of the one of the modified base image and the modified overlay image is met the criterion for movement being that the input is a touch at a location other than the overlay image reference point; and in response to alignment of the base image reference point on the modified base image with the overlay image reference point on the modified overlay image at a point on the touch screen after the moving, indicate positive authentication.

13. The computing device of claim 12 , further comprising the memory.

14. The computing device of claim 12 , wherein the display is a touchscreen.

15. The computing device of claim 12 , comprising a mobile electronic device.