標題: Flip visual cryptography (FVC) with perfect security, conditionally-optimal contrast, and no expansion
作者: Lin, Sian-Jheng
Chen, Shang-Kuan
Lin, Ja-Chen
資訊工程學系
Department of Computer Science
關鍵字: Visual cryptography;Flipping;Conditionally optimal contrast;Secret image sharing;Visual secret sharing;Non-expansible;Perfect security;Random grids
公開日期: 1-Nov-2010
摘要: This paper proposes a flip visual cryptography (FVC) scheme with perfect security, conditionally optimal contrast, and no expansion of size. The proposed FVC scheme encodes two secret images into two dual-purpose transparencies. Stacking the two transparencies can reveal one secret image. Flipping one of the two transparencies and then stacking with the other transparency can reveal the second secret image. The proposed scheme is proved to have conditionally optimal contrast: its contrast is optimal if the double-secrets non-expanded FVC scheme is required to have perfect security. The perfect security is also proved. (c) 2010 Elsevier Inc. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jvcir.2010.08.006
http://hdl.handle.net/11536/31962
ISSN: 1047-3203
DOI: 10.1016/j.jvcir.2010.08.006
期刊: JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION
Volume: 21
Issue: 8
起始頁: 900
結束頁: 916
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