Image Encryption using Curved Scrambling and Diffusion
Neha Dwivedi, Rishi Kumar Gupta, Shafali Agarwal · International Journal of Engineering and Technology · 2016
In the recent world, designing of a secure cryptosystem is prime focused area for the researchers.This paper emphasizes on the image encryption/decryption technique using a key derived from a plain image.In the proposed algorithm, encryption key is derived by applying new curved scrambling method to the RGB layers of a plain image.In next step, a temporary cipher image is obtained by modulo arithmetic using encryption key.To enhance security level, execute additional diffusion method to reset the pixel values within the given block and finally generate a cipher image.The described algorithm achieves a larger key space, good statistical property and effective resistance to the brute force attack thus provides highly secure cryptosystem for the real world applications.