Recent advancement in the digital technology and internet has facilitated usage of
multimedia objects for data communication. However, interchanging information through the …

Image encryption schemes can be vulnerable to a variety of cryptanalysis attacks. The use of
key-dependent dynamic S-boxes has been shown to improve security. Threats of chosen …

Block cipher has been one of the most reliable options by which data security is achieved.
The strength of block cipher against various attacks is purely dependent on its confusion …

Cryptography is commonly used to secure communication and data transmission over
insecure networks through the use of cryptosystems. A cryptosystem is a set of cryptographic …

Key-dependent dynamic substitution boxes (S-boxes) are important building blocks of many
image encryption schemes, in which a session key controls the construction of dynamic S …

Chaotic systems have been used to generate the substitutional box structures. The
existence of endless possibilities for the selection of the initial conditions and control …

Many cryptographic protocol have been realized using similarities between chaos and
cryptology. One of the most successful examples of these protocols has been s-box …

Recently, highly dynamic substitution box (S-box) generators are widely used in
cryptosystems to improve the security against modern computational attacks. However …

In this paper, a novel color image encryption scheme based on fractals, substitution box and
hyper chaotic dynamic is proposed. In the first step, fractal images are generated by Julia …

Over the last few decades, different mediums of secure communication use chaos which is
demonstrated by some nonlinear dynamical systems. Chaos shows unpredictable behavior …