To provide safe data communication, substitution boxes are employed in a variety of
frameworks and cryptosystems. The acceptance of the AES encryption standard posed a …

Cryptography entails the practice of designing mathematical algorithms to secure data
communication over insecure networks in the presence of adversaries. In this aspect, a …

Modern cryptographic systems use substitution boxes (S-boxes) throughout the encryption
process to enhance the security of the plaintext. The integrity of the communication process …

The local ring-based cryptosystem is built upon the core mathematical operations of the
algebraic structure of local rings, which provides a significant advantage in ensuring security …

In this paper, we present a matrix approach based on the rule 90 cellular automata, and a
fractional linear transformation over Galois field GF (2^ 8) GF (2 8), to implement a strong …

This article deals with an algorithm for the generation of impregnable substitution boxes (S‐
box). The proposed scheme involves the application of right translation and Gray codes over …

The success of AES encryption standard created challenges for the cryptographers to
construct strong substitution-boxes using different underlying approaches. It is because they …

In the literature, different algebraic techniques have been applied on Galois field GF (28) to
construct substitution boxes. In this paper, instead of Galois field GF (28), we use a cyclic …

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 …

An S-box is a crucial component of modern block ciphers, providing confusion and making
them attack-resistant. For the last three decades, researchers have designed S-boxes using …