Advanced encryption techniques for wireless networks

Rapid advancement of various wireless communication technologies has therefore heightened the need for strong security that guarantees the protection of transmitted data. This paper reviews the evolution of encryption techniques that are adopted for wireless networks, from legacy methods to state-of-the-art. In the upcoming sections of the chapters, basic encryption schemes—Data Encryption Standard (DES), Advanced Encryption Standard (AES), and Triple DES (3DES)—and their working mechanisms are laid down, as well as their security vulnerabilities. The advanced encryption algorithms are advanced in the form of Rivest Cipher 4 (RC4), E0, and SNOW 3G; each one of them is evaluated for performance and security when considered for different classes of wireless: Zigbee, Wi-Fi, Bluetooth, and long term evolution (LTE) -advanced networks. In the current light, the paper justifies the need, on comprehensive grounds, for robust mechanisms of data encryption to repulse the current methods of wireless communication from the most vicious types of cyber threats. In particular, the computational efficiency is weighed against robust security, and so a research continuum on algorithm enhancements is justified. Such future perspectives include machine learning integration into adaptive encryption techniques, quantum-resistant algorithms, and proof of the same. The conclusion to be drawn is that encryption in wireless networks is inevitable and that the innovation and advancement in ensuring security and reliability in communications have to continue.