[ctxmxaoc] Automatic shoulder surfing

Create an application designed to search through high resolution security video footage and isolate segments in which someone is seen typing a PIN, passphrase, or pattern unlock into a phone.

Design a smartphone UI to thwart such automatic analysis, to make it look like some other, much more common interface used in the phone, perhaps text messaging.  The problem is, typing a PIN is usually the first thing a person does when interacting with their phone, so could be identified without even analyzing what is on the screen.

Randomize the location of the numbers and label them with a very small, low contrast font.