Improved Mobile WiMax Image Privacy Using Novel Encryption Techniques

Mobile WiMax security standards from IEEE specify some powerful standards-based security controls, including PKMv2 EAP-based authentication and over-the-air AES-based encryption. But encryption technique does not guarantee a powerful secure end-to-end image transmission, and, consequently, WiMax presents a range of security design and integration challenges. In this paper, two proposed chaos encryption techniques were described for image transmission over Mobile WiMax network as an enhancement of image security problem in Mobile WiMax. At first, a global overview of the Mobile WiMax security sublayer was given to determine the disadvantages of recently used encryption technique. Then three selected traditional techniques and our proposed encryption techniques were presented. Next, these techniques were applied to image to examine their robustness against cipher-image attacks such as cropping, noising, and JPEG compression. It was found that our techniques are more robust than AES and the selected techniques in the presence of cipher-image attacks.