The existing methods of ransomware detection have limitations. To be specific, static
analysis is not effective to obfuscated binaries, while dynamic analysis is usually restricted to …

Based on the combination of quaternion numbers, residual matrices, and chaotic attractors,
a new cryptosystem is proposed for multimedia processing files such as images and audio …

Encryption algorithms aim to make data secure enough to be decrypted by an attacker. This
paper combines the Speck and the Salsa20 to make it difficult for an attacker to exploit any …

ABSTRACT Lightweight Block Cipher's (LBC) various algorithms need to meet the security
requirements for all resource-constrained devices and Internet of Things (IoT) technologies …

The capability of exploiting Orthogonal Space-Time Block Codes (OSTBC) for increasing
physical layer security of wireless systems is studied. A technique named “hidden OSTBC” is …

Today, pseudo-random number generators (PRNGs) are used in various systems and
applications, including as key generators in stream ciphers, blockchain, game industry and …

Random number generators have been an important component of classical cryptography
for years. However, the classical cryptography systems that have been based on …

In this research work we propose an encryption system for the processing of multimedia files
based on the numerical set of quaternion numbers and chaotic attractors, in order to simplify …