Visual Cryptography for General Access Structures


A visual cryptography scheme for a set P of n participants is a method to encode a secret image SI into n shadow images called shares, where each participant in P receives one share. Certain quali ed subsets of participants can \visually" recover the secret image, but other, forbidden, sets of participants have no information (in an information-theoretic… (More)
DOI: 10.1006/inco.1996.0076



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