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Visual Encryption Pad

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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->1, 1->0, 2->1} to the sum of clear text and random mask generates the cypher pad.

Contributed by: Michael Schreiber (September 2007)
Open content licensed under CC BY-NC-SA

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