Gray level images of cryptographic applications

The information has always been valuable, being a subject of the competititon between companies and organizations. With progression of technology which has become the greatest power of information transmitted and reliability have gained immense importance. That the security requirements provide with many different ciphering methods had been developed. Encryption methods which are used for nowadays, include complicated techniques to improve the security to the highest level. At the same time, each developed encryption method provides improving of analysis methods that is needed. Even if the new methods are thought that they are safier than the old ones, they also have some security gaps. Because of that reason, these passwords are hacked. Thus, each time the unhacked encryption techniques rise the number of the methods which is applied data. In this study scan algorithm and chaos based system were used. These methods are applied to gray-level images. PSNR, NPCR, UACI performance metrics are calculated using the encryption. Histograms of encrypted images subtracted that algorithmic results obtained showed that there were analyzed. Key Words: Cryptology, Cryptography, Analysis of Crypto, Cryptography Algorithms, Image Encryption, Chaotic Systems, Scan Algorithm, Colours, Colours, Models, Digital Images.