ABSTRACT
In this book, image encryption algorithms are studied for the purpose of wireless communication of images in a secure form. The main objective is to come to a conclusion whether a certain image encryption algorithm is suitable for wireless communication applications. In this regard, we explore in this book some of the numbertheory-based encryption algorithms such as the Data Encryption Standard (DES), the Advanced Encryption Standard (AES), and the RC6 algorithms [6-12]. These algorithms are known in the literature as strong encryption algorithms. Our main concern is not only the strength of the encryption algorithm, but also its ability to work with the limitations of wireless communication systems. Unfortunately, some of the ciphers used currently were not designed for image encryption. For example, the AES implemented in the Electronic Code-Book (ECB) mode is not recommended for encrypting images because of the repetitive data patterns existing in images. So, we either modify these ciphers to work for image encryption or search for other approaches suitable for this task. This book tries to investigate both directions.
