Ali Kaffash - Faculty of computer engineering, International University of imamreza, Mashhad, Iran
Javad Rajabnia - Faculty of computer engineering, International University of imamreza, Mashhad, Iran

hill’s cipher is a symmetric cryptography algorithm which is based on blocking cipher and use array computation to encrypt a message. in this article we want introduce new application of hill’s cipher cryptography in digital image processing to encrypt an image and ECC totransfer the key during an unsecure channel to decrypt it. The method involves each type of images including binary, gray scale and RGB images.

hill’s cipher;symmetric algorithems, blocking cipher, modular mathematics, image processing, Elliptic Curve Cryotosystem(ECC)