Chapter 1Introduction
The demand for high speed and efficient wireless communication systems has grown in the last few decades. The progress in mobile communications, satellite applications, internet applications, and computer networks has given rise to new problems with regard to security and privacy. Having a secure and reliable means of communicating with images and video is becoming a necessity, and the related issues must be carefully considered. Hence, network security and data encryption have become important. Images can be considered, nowadays, as one of the most usable forms of information. Image and video encryption have applications in various fields, including internet communications, multimedia systems, medical imaging, telemedicine, ...