Visual Encryption Pad

http://demonstrations.wolfram.com/VisualEncryptionPad/ The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. Only one position of the random mask will reveal clear text hidden in the cypher pad. The security of the code depends on a safe way to pass or keep the random mask. Application of the trivial rules {0-gt1, 1-gt0, 2-gt1} to the sum of clear text and random... Contributed by: Michael Schreiber