Online digital content service becomes more and more easily, however, free consumption
and excessive spreading without rights protection will hurt the content providers' benefits …

Spectral graph theory is the study of the eigenvalues and eigenvectors of matrices
associated with graphs. In this tutorial, we will try to provide some intuition as to why these …

In 1986, Fiat and Shamir proposed a general method for transforming secure 3-round public-
coin identification schemes into digital signature schemes. The idea of the transformation …

Cryptography is the process by which a readable message is converted into cipher-text
unintelligible to an eavesdropper. With the advent of the internet, improved network …

Recently, Lin and Tsai proposed an image secret sharing scheme with steganography and
authentication to prevent participants from the incidental or intentional provision of a false …

A new visual secret sharing (VSS) approach by random grids (RG-based VSS), proposed by
Kafri and Keren (1987), has drawn close attention recently. With almost all advantages of …

This paper presents a novel method for the protection of bitstreams of state-of-the-art video
codec H. 264/AVC. The problem of selective encryption (SE) is addressed along with the …

Recently, the visual secret sharing (VSS) technique by random grids (RG), proposed by Kafri
and Keren in 1987, has drawn attention in academia again to remove the abovementioned …

With the speedy progress of network technology and internet applications, protection of
digitized data against unauthorized access and modification has become a paramount …

Visual cryptography (VC) is a powerful technique that combines the notions of perfect
ciphers and secret sharing in cryptography with that of raster graphics. VC takes a binary …