Author : Miss. Aarti Harikishor Sharma Prof Dr. B. D. Phulpagar

Nowadays, nearly each man or woman inside the world are related to every other the use of Internet. Different files of photographs are transmitted through Internet for numerous applications. These photographs commonly include either personal or private data. Therefore, making sure confidentiality, integrity, authentication and non-repudiation of images at some stage in transmission is an important issue. In information processing field image security and image storage space requirements are two most of the widely explored field. To provide protection to the image many encryption algorithms were designed which might be different from the textual encryption algorithm. During data transmissions, these rather confidential records may be manipulated via an unauthorized person, as a result main to an insecurity for its sender. To overcome this problem, there are many techniques in which data hiding and image encryption are the two main strategies. We proposed a novel block-scrambling image encryption scheme that enhances the security of systems for JPEG images and that image will be secured.

Keywords: Block scrambling encryption algorithm, Encryption, decryption, loss less Compression, decompression, security