Implementation of Exclusive-OR Algorithm

Abstract

Image encryption is a technique which provides security to images by converting original
image to another image which is difficult to understand. In the ever-increasing growth of multimedia
applications, security is an important issue in communication and storage of images. Encryption is one
the ways to ensure security. Nobody could get to know the content without a key for decryption. All those
processes generate a different form of that data. The unencrypted data is referred to as the plaintext and
the encrypted data as the cipher text, which is representation of the original data in a difference form.
Key-based algorithms use an Encryption key to encrypt the message. One simple and good way to
encrypt data is through rotation of bits or sometimes called bit shifting. But, rotation of bits is more
advanced than simple bit shifting. In rotation of bits operation, the bits are moved, or shifted, to the left
or to the right. The different kinds of shifts typically differ in what they do with the bits.