In last years, low-dimensional and high-dimensional chaotic systems have been
implemented in cryptography. The efficiency and performance of these nonlinear systems …

Recently, chaotic dynamics-based data encryption techniques for wired and wireless
networks have become a topic of active research in computer science and network security …

In this paper, a new pseudorandom number generator (PRNG) based on the logistic map
has been proposed. To prevent the system to fall into short period orbits as well as …

This paper introduces a novel Logarithmic Chaotic Map (LCM) that is inspired by the well
known quadratic map. The chaotic dynamic of the proposed map LCM is thoroughly …

The paper proposes a color image encryption scheme based on coupled hyper chaotic
Lorenz systems. The novelty is to randomly inject impulse signals into coupled Lorenz …

Unobtrusive personal data collection by wearable sensors and ambient monitoring has
increased concerns about user privacy. Applying cryptography solutions to resource …

Large volumes of sensitive data are being transferred among devices as the Internet of
Things (IoT) grows in popularity. As a result, security measures must be implemented to …

Everyday, a vast amount of information is created and shared on the internet. Security steps
and methods are needed to ensure the data is sent and stored safely. Random numbers are …

Security and secrecy are some of the important concerns in the communications world. In
the last years, several encryption techniques have been proposed in order to improve the …

In this paper a new speech encryption system is presented. It is based on permutation and
substitution of speech samples using secret keys in time and transform domains. The system …