Boolean operations-based visual secret sharing for general access structures. (4th July 2017)

• Record Type: Journal Article
• Authors: Kumar, Sachin; Sharma, R. K.
• Is Part Of: Journal of discrete mathematical sciences & cryptography. Volume 20:Number 5(2017)
• Page Start: 1069
• Page End: 1090
• Publication Date: 2017-07-04
• Subjects: visual secret sharing -- visual cryptography -- boolean operations -- general access structure -- image encryption; Computer science -- Mathematics -- Periodicals; Cryptography -- Periodicals; Computer science -- Mathematics; Cryptography; Periodicals; 004.0151
• DOI: 10.1080/09720529.2014.996983
• Languages: English
• ISSNs: 0972-0529

Abstract

Abstract: Compared to conventional visual secret sharing (VSS), Boolean operations-based VSS solves the problems of the large pixel expansion ( pe ) and the complex computation involved in the decryption process. However, the existing VSS schemes based on Boolean operations are limited only to (2, n ), ( n, n ) and ( k, n ). In this paper, we propose a Boolean operations-based VSS scheme for general access structures. The proposed scheme encodes the secret image into several shares such that the secret image can be reconstructed only by any qualified subset of the shares. The proposed scheme has lossless secret reconstruction with an acceptable pixel expansion (0 < pe < 1.5) and fast decoding process. The correctness of the proposed scheme is validated by formal security analysis and the experimental results.