In this paper we define some compositions of fuzzy ideals in a Γ-ring and study the structures of the set of fuzzy ideals of a Γ-ring. Also we characterize Γ-field, Noetherian Γ-ring, etc. with the help of fuzzy ideals via operator rings of Γ-rings.
This paper presents a visual secret sharing (VSS) scheme for general access structures by using random grids. Compared to the existing VSS schemes for general access structures, the proposed scheme generates the shares of same size as that of the original secret image and does not require any codebook prior to encryption process. With these advantages, the… (More)