Image Encryption and Authentication Scheme using 3D Chaotic Map
International Journal of Computer Applications
Cryptographic techniques are in demand due to vast development in application of information transmission and communication. Image encryption and authentication schemes have been continuously studied to meet the demand of secure image transmission through networks. A number of effective chaos-based image encryption and authentication schemes have been proposed. The intent of this paper is to propose an image encryption and authentication scheme using chaotic map. Arnold cat map is used for
... ap is used for diffusion as well as for substitution. This paper applies an alternate structure of the classic block cipher applied with Arnold Cat map is used for encryption and hash function is used for Authentication purpose. The paper that is being followed uses a keyed hash function is introduced to generate hash values from both the plain-image and the secret hash keys  , which leads to large computational time, whereas our schemes computational time is less as compared to the previous. The experimental results show that the proposed encryption technique is efficient and has high security features.