Considering the current dependency on digital technology in modern society, the protection
of multimedia is highly important. Encryption is vital in modern digital communication …

Modern healthcare systems contain a large amount of sensitive information related to a
patient in textual and visual form. Surgical videos and diagnosis data such as ultrasound …

Chacha20 is a widely used stream cipher known for using permutation functions to enhance
resistance against cryptanalysis. Although the existing literature highlights its strengths, it is …

Stream ciphers are crucial in the realm of information security. However, many existing
stream ciphers suffer from several vulnerabilities, including insufficient security levels and …

In recent years, there has been an increasing interest in employing chaotic-based random
number generators for cryptographic purposes. However, many of these generators produce …

The surge in online activities has led to the increasing popularity of sharing video data
across diverse applications, including online education tutorials, social networking, video …

The lack of an S-Box in some lightweight cryptography algorithms, like Speck and Tiny
Encryption Algorithm, or the presence of a fixed S-Box in others, like Advanced Encryption …

The massive growth and use of digital multimedia through computer networks, including
video and images, have increased the demand for protecting this digital data. To secure …

Encryption is a substantial phase in information security. It permits only approved persons to
get private information. This study suggests a signal multi-encryptions system (SMES) …

Data confidentiality and security are important issues due to the sensitivity of the data and its
relationship with users' privacy. Sensitive data includes images and texts that can be …