This study contributes to creating an unbreakable S-Box based on a strong bent function
expanded by DNA sequences and investigates and analyzes the strength of the proposed S …

In the modern block cipher, the substitution box (S-box) is a nonlinear constituent that plays
a substantial role to create the confusion in ciphertext. S-boxes with low value of differential …

Image security becomes increasingly critical as the multimedia technology and Internet of
things evolve rapidly. To ensure image security and improve the efficiency of image …

In modern-day block ciphers, the role of substitution-boxes is to transform the plaintext data
nonlinearly to generate ciphertext data with sufficient confusion. It has been well-confirmed …

In this article, we present an encryption technique that can encrypt any digital data. The
proposed scheme basically depends on a substitution-permutation network. Two separate …

Chaos based image encryption techniques are well accepted in research communities to
perform permutation at pixel/bit level using pseudo-random sequence and changes pixel …

In many cases, images contain sensitive information and patterns that require secure
processing to avoid risk. It can be accessed by unauthorized users who can illegally exploit …

We propose a novel image encryption algorithm based on two pseudorandom bit
generators: Chebyshev map based and rotation equation based. The first is used for …

Securing digital images against modern attacks is a hot research topic in the field of
cryptography. Several encryption schemes have been proposed, but either they do not …

At the present time, the protection of multimedia data has become a very important process
which can be achieved by encryption. Basically, so many different techniques have been …