A New Method For Secret Image Transmission via Mosaic Fragments using ECC Key

The intrusion of networks has increased enormously and become major threat to both the public platform and for the classified platforms used by private/government bodies. In order to stay out from the sight of intruder a new mosaic image technique is introduced in this research work, which aims at bringing a high amount of security for the data that is being transmitted over the internet. A method is suggested in this paper where two images are merged to form a single image. The resulting image which needs to be transmitted is called as the secret image. This is then converted into tile format and is made to hide behind the image blocks. A target image is chosen which is similar to the image that is to be transmitted. While splitting the two images the different attributes like Colour conversion, generation of keys, obtaining similar blocks etc. needs to be considered carefully. For the process of encryption and decryption, a secret ECC key is used. The proposed results, is then compared with the other algorithms like RSA, AES etc. The solution obtained using ECC key method is encouraging. The use of ECC key increases system performance because of the reduced key size and thus, helps to encrypt and decrypt an image in an easier and quicker manner.