A(t,n)-multi secret image sharing scheme based on Boolean operations

Autor: Ziba Eslami, Saeideh Kabirirad
Rok vydání: 2018
Předmět:
Zdroj: Journal of Visual Communication and Image Representation. 57:39-47
ISSN: 1047-3203
Popis: In ( t , n ) -multi secret image sharing (MSIS) schemes, a number of secret images are shared among n users so that participation of at least t of them is needed to recover the shared images. Due to the high volume of images and computing complexity of secret sharing schemes, recent Boolean-based approaches are highly desirable. Unfortunately, to the best of our knowledge, existing literature on Boolean-based MSIS schemes only supports two cases: ( 2 , n ) and ( n , n ) . In ( n , n ) -schemes, we lose fault tolerancy such that in the absence of even one share, secret images can not be recovered. On the other hand, ( 2 , n ) -MSIS seems to be quite restrictive for the wide range of applications that might occur in practice. It is therefore a challenging problem to propose a Boolean-based ( t , n ) -MSIS for t ≠ 2 , n . The aim of this paper is to solve this problem. We further provide formal proofs of security as well as comparison with existing literature.
Databáze: OpenAIRE