Visual Cryptography

by Omri on 10 May 11
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Simple implementation of the visual cryptography scheme based on Moni Naor and Adi Shamir, Visual Cryptography, EUROCRYPT 1994, pp1–12. This technique allows visual information like pictures to be encrypted so that decryption can be done visually.

The code outputs two files. Try printing them on two separate transparencies and putting them one on top of the other to see the hidden message.

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