screenCrypt demo - Image encryption/decryption

This is a demonstration of the screenCrypt utility. This program encrypts a 2D image and decrypts it using a paper mask. Note: the mask in the demo is printed in regular 80g white paper. In this demo I'm scrolling through different images encrypted with the same key. The key mask decrypts them to the message "AWESOME" and a smiley. Each image is 100x100 pixels and contains a single letter. It doesn't use any app in the android phone, I'm just scrolling through the image gallery using the default app. Source code here: https://github.com/ortegaalfredo/screenCrypt