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Information Seminar Paper

Title

VISUAL CRYPTOGRAPHY SCHEME FOR SOME CLASS OF ACCESS STRUCTURE

Writers

CHERAGHI A.

Pages

 Start Page | End Page

Abstract

 SPECIAL KIND OF SECRET SHARING SCHEMES ARE VISUAL CRYPTOGRAPHY SCHEMES (VCS). IN A BIPARTITE SECRET SHARING SCHEME, THE SET OF PARTICIPANTS IS DIVIDED INTO TWO PARTS, AND ALL PARTICIPANTS IN EACH PART PLAY AN EQUIVALENT ROLE. IN THIS PAPER WE STUDY AN INTERESTING CLASS OF BIPARTITE ACCESS STRUCTURES: THE KING AND N PAWNS ACCESS STRUCTURES (FORMULA) THE KING AND ANY ONE PAWN MAY RECONSTRUCT THE SECRET, AS MAY THE SET OF ALL PAWNS. WE PRESENT S1 AND S2 VISUAL CRYPTOGRAPHY SCHEMES FOR THIS CLASS OF ACCESS STRUCTURE. FINALLY WE COMPUTE THE INFORMATION RATE OF OUR SCHEMES AND PRESENT ONE S SCHEME SUCH THAT IT HAS SUITABLE WEIGHTED AVERAGE OF S1 AND S2.

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