Determining the Optimal Contrast for Secret Sharing Schemes in Visual Cryptography

2000 ◽  
pp. 280-291 ◽  
Author(s):  
Matthias Krause ◽  
Hans Ulrich Simon
Keyword(s):  
Secret Sharing ◽  
Visual Cryptography ◽  
Secret Sharing Schemes

scholarly journals Contrast-optimal k out of n secret sharing schemes in visual cryptography

2000 ◽  
Vol 240 (2) ◽  
pp. 471-485 ◽  
Author(s):  
Thomas Hofmeister ◽  
Matthias Krause ◽  
Hans U. Simon
Keyword(s):  
Secret Sharing ◽  
Visual Cryptography ◽  
Secret Sharing Schemes

Improved Extended Progressive Visual Cryptography Scheme Using Pixel Harmonization

2021 ◽  
Vol 15 (2) ◽  
pp. 196-216
Author(s):  
Suhas Bhagate ◽  
Prakash J. Kulkarni
Keyword(s):  
Secret Sharing ◽  
Visual Cryptography ◽  
Secret Sharing Schemes ◽  
Pixel Expansion ◽  
Secret Image ◽  
Secret Information ◽  
Meaningful Shares ◽  
Visual Cryptography Scheme

Security of information is of much concern in the modern internet era. Secret sharing schemes provide mechanism of encrypting secret information to prevent illicit usage. Visual cryptography is a secret sharing technique that facilitates encryption of a secret image. Visual cryptography allows us to effectively and efficiently share secrets among a number of trusted parties by hiding secrets within images. These images are encoded into multiple shares as per the rules indicated in basis matrices and later decoded by stacking required number of shares. Progressive visual cryptography has a specialty of recovering secret image as soon as more than one shares received gradually. Existing progressive visual cryptography schemes have severe limitations like data disclose on shares and higher pixel expansion. Improved progressive visual cryptography scheme deals with these limitations. Improved extended progressive visual cryptography scheme solves the issue of management of noise like meaningless shares by creating meaningful shares without any pixel expansion efficiently.

A Strengthened Security Notion for Password-Protected Secret Sharing Schemes

2015 ◽  
Vol E98.A (1) ◽  
pp. 203-212 ◽  
Author(s):  
Shingo HASEGAWA ◽  
Shuji ISOBE ◽  
Jun-ya IWAZAKI ◽  
Eisuke KOIZUMI ◽  
Hiroki SHIZUYA
Keyword(s):  
Secret Sharing ◽  
Secret Sharing Schemes ◽  
Security Notion

scholarly journals On the classification of ideal secret sharing schemes

1991 ◽  
Vol 4 (2) ◽  
pp. 123-134 ◽  
Author(s):  
Ernest F. Brickell ◽  
Daniel M. Davenport
Keyword(s):  
Secret Sharing ◽  
Secret Sharing Schemes ◽  
Ideal Secret Sharing Schemes

Geometric secret sharing schemes and their duals

1994 ◽  
Vol 4 (1) ◽  
pp. 83-95 ◽  
Author(s):  
Wen-Ai Jackson ◽  
Keith M. Martin
Keyword(s):  
Secret Sharing ◽  
Secret Sharing Schemes
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