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Please use this identifier to cite or link to this item: http://purl.org/purl/1952

Title: Secret Sharing Schemes Using Visual Cryptography
Authors: Sreekumar, A
Dr. Babusundar, S
Keywords: Visual Cryptography
Shamir Secret Sharing Scheme
Ito-Saito-Nishizeki Scheme
Benaloh-Leichter Scheme
Balanced Strings
Permutation Ordered Binary Number System
Secret sharing
Issue Date: Jun-2009
Publisher: Cochin University of Science & Technology
Abstract: Secret sharing schemes allow a secret to be shared among a group of participants so that only qualified subsets of participants can recover the secret. A visual cryptography scheme (VCS) is a special kind of secret sharing scheme in which the secret to share consists of an image and the shares consist of xeroxed transparencies which are stacked to recover the shared image. In this thesis we have given the theoretical background of Secret Sharing Schemes and the historical development of the subject. We have included a few examples to improve the readability of the thesis. We have tried to maintain the rigor of the treatment of the subject. The limitations and disadvantages of the various forms secret sharing schemes are brought out. Several new schemes for both dealing and combining are included in the thesis. We have introduced a new number system, called, POB number system. Representation using POB number system has been presented. Algorithms for finding the POB number and POB value are given.We have also proved that the representation using POB number system is unique and is more efficient. Being a new system, there is much scope for further development in this area.
Description: Department of Computer Applications, Cochin University of Science and Technology
URI: http://dyuthi.cusat.ac.in/xmlui/purl/1952
Appears in Collections:Faculty of Technology

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