In today's interconnected digital world, the secure transmission of data is of paramount
importance. With the rapid expansion of digital technologies across individuals …

Since a substitution box (S-box) is the nonlinearity part of a symmetric key encryption
scheme, it directly determines the performance and security level of the encryption scheme …

In today's applications of block ciphers, the substitution box (S-box) serves as a critical
nonlinear component that is essential for generating complex ciphertext. S-boxes that exhibit …

Static substitution-boxes in fixed structured block ciphers may make the system vulnerable to
cryptanalysis. However, key-dependent dynamic substitution-boxes (S-boxes) assume to …

Substitution boxes are the key factor in symmetric-key cryptosystems that determines their
ability to resist various cryptanalytic attacks. Creating strong substitution boxes that have …

Owing to the growth of high performance network technologies, multimedia applications
over the Internet are increasing exponentially. Applications like video conferencing, video …

Video broadcasting has attained high importance due to the popularization of networks.
Video communication has lot of advantages but not limited to e-learning, surveillance, etc …

With the exponential increase in communication sector, the risk of information management
also increases. Although there is enormous input from the cybersecurity perspective, still a …

S-box plays an imperative role in designing a cryptographically strong block cipher.
Designing S-box based on chaos has attracted lots of attentions because of its distinct …

Achieving proper nonlinear properties and autocorrelation in the S-box structure is an open
challenge in cryptography. Besides, there have been numerous articles on the optimization …