Results 11 to 20 of about 2,118,323 (299)
Cheating in visual cryptography
Designs, Codes and Cryptography, 2014 A secret sharing scheme allows a secret to be shared among a set of participants, P, such that only authorized subsets of P can recover the secret, but any unauthorized subset cannot recover the secret.
Chen, T. +3 more
core +4 more sources
Personalized Shares in Visual Cryptography [PDF]
Journal of Imaging, 2018 This article deals with visual cryptography. It consists of hiding a message in two key images (also called shares). The decryption of the message is obtained through human vision by superposition of the shares.
Karim Hammoudi, Mahmoud Melkemi
doaj +2 more sources
Perfect contrast visual cryptography scheme
Tongxin xuebao, 2009 A perfect contrast visual cryptography scheme with the best contrast based on both the perfect black visual cryptography scheme（PBVCS） and the non-perfect black visual cryptography scheme（NPBVCS） was proposed.The proposed scheme applied simple Boolean ...
HAN Yan-yan1, HE Wen-cai1, HU Yu-pu1
doaj +3 more sources
Structure Aware Visual Cryptography
Computer Graphics Forum, 2014 Visual cryptography is an encryption technique that hides a secret image by distributing it between some shared images made up of seemingly random black-and-white pixels.
Martin, Ralph R. +3 more
core +4 more sources
Visual cryptography on graphs [PDF]
Journal of Combinatorial Optimization, 2008 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Steve Lu 0001 +2 more
openaire +5 more sources
Verifiable Visual Cryptography [PDF]
2012 Sixth International Conference on Genetic and Evolutionary Computing, 2012 The paper presents a verifiable visual cryptography (VC) scheme for checking the validness to the shares engaged in a VC decoding instance. the idea is to stamp a continuous pattern on the shares belonging to the same secret image, and a part of the pattern can be revealed through aligning and stacking half of two shares together.
Shuo-Fang Hsu +4 more
openaire +1 more source
Cheating Prevention in Visual Cryptography [PDF]
IEEE Transactions on Image Processing, 2007 Visual cryptography (VC) is a method of encrypting a secret image into shares such that stacking a sufficient number of shares reveals the secret image. Shares are usually presented in transparencies. Each participant holds a transparency. Most of the previous research work on VC focuses on improving two parameters: pixel expansion and contrast.
Chi-Ming Hu, Wen-Guey Tzeng
openaire +3 more sources
High-Chroma Visual Cryptography Using Interference Color of High-Order Retarder Films [PDF]
, 2015 Visual cryptography can be used as a method of sharing a secret image through several encrypted images. Conventional visual cryptography can display only monochrome images.
Sugawara, Shiori +2 more
core +1 more source
Optimal colored threshold visual cryptography schemes [PDF]
, 2005 Visual cryptography schemes allow the encoding of a secret image into n shares which are distributed to the participants. The shares are such that only qualified subsets of participants can visually recover the secret image.
A. De Santis, S. Cimato, R. De Prisco
core +2 more sources
New Designs for Friendly Visual Cryptography Scheme [PDF]
, 2015 NSC101-2221-E-032-047Different from conventional cryptography, visual cryptography is an image cryptographic technique proposed by Naor and Shamir. It encodes a secret image into n pieces of noise-like shares.
侯永昌; Z.Y. Quan; H.Y. Liao +1 more
core +1 more source