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A feasibility paradigmatic of (t n) visual cryptography codification with vitalizing group

IT Skills Show & International Conference on Advancements in Computing Resources, (SSICACR-2017) 15 and 16 February 2017, Alagappa University, Karaikudi, Tamil Nadu, India. International Journal of Computer Science (IJCS) Published by SK Research Group of Companies (SKRGC)

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Abstract

The (t,n) visual cryptography (VC) is a secret sharing scheme where a secret image is encoded into n transparencies, and the stacking of any out of transparencies reveals the secret image. The stacking of (t-1) or fewer transparencies is unable to extract any information about the secret. This project discusses the additions and deletions of users in a dynamic user group. To reduce the overhead of generating and distributing transparencies in user changes, this project proposes a (t,n) VC scheme with unlimited n based on the probabilistic model. The proposed scheme allows n to change dynamically in order to include new transparencies without regenerating and redistributing the original transparencies. Specifically, an extended VC scheme based on basis matrices and a probabilistic model is proposed. An equation is derived from the fundamental definitions of the (t,n) VC scheme, and then the (t,?) VC scheme achieving maximal contrast can be designed by using the derived equation. The maximal contrasts with t=2 to 6 are explicitly solved in this project.

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Keywords

visual cryptography, Encoding Algorithm, transparencies, probabilistic, dynamic user

Image
  • Format Volume 5, Issue 1, No 23, 2017
  • Copyright All Rights Reserved ©2017
  • Year of Publication 2017
  • Author K.Nithya Kalyani
  • Reference IJCS-266
  • Page No 1701-1706

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