Protection of data transmitted over the network from illegal access is one of the major
challenges being posed by exponential growth of data in online digital communication …

For decades, the security and privacy of data are among the major challenges faced by
service providers dealing with public data. To cope with these challenges, most of the …

New era ciphers employ substitution boxes (S-boxes) which assist in the provision of
security for the plaintext in the encryption phase and transforming the ciphertext on the …

With the widespread use of digital devices and the internet, implementing advanced security
systems is essential to protect confidential information from cyberattacks and unauthorized …

Elliptic curve cryptography (ECC) is capable of providing high security than to other
cryptosystems with same key size. The aim of this paper is twofold. Firstly, we present new …

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 …

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 …

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

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 …

In this paper, we propose to present a novel technique for designing cryptographically
strong substitution-boxes using cubic polynomial mapping. The proposed cubic polynomial …