An enhancement crypto-compression scheme for image Based on chaotic system

The largest growth rate of technology requires a new method of storing and transmitting data or/and information. These methods may guarantee an important ratio of security and storage. So it is necessary to compress and encrypt data (image, text, register) before its transmission or archiving. In this context, this work presents an enhanced scheme which combines between compression and encryption. Concerning the encryption process, it is based on AES and chaotic system (Henon map and Arnold cat map). However, the Advanced Encryption Standard (AES) is used to encrypt the DC coefficients and the Arnold cat map is used for shuffling. Finally, to show the efficiency of this proposed scheme in experimental results are presented (PSNR, UACI and NPCR).