Dr.O.Srinivasa Rao
Jawaharlal Nehru Technological University,Vijayanagaram, India

With the fast advancements of information technology, the security of image data transmitted or stored over internet is become very difficult. To hide the details, an effective method is encryption, so that only authorized persons can decrypt the image with the keys available. Since the default features of digital image such as high capacity data, large redundancy and large similarities among pixels, the conventional encryption algorithms such as AES, , DES, 3DES, and Blow Fish, are not applicable for real time image encryption. This paper presents the performance of CRT for image encryption to secure storage and transmission of image over internet.

Digital image, Chinese Remainder Theorem, encryption, confidentiality