Discrete Chaotic Exclusive OR Encryption of Digital Image

Abstract

According to the particular properties of discrete chaotic sequences, and combining the structure characters of digital images, obeying the common encryption principles of digital images, a discrete chaotic exclusive OR encryption scheme of digital images is carefully studied and proposed. In the light of the size of a digital image which needs to be encrypted, and producing a corresponding binary chaotic sequence, a binary exclusive OR operation between the binary chaotic sequence and the digital image is implemented to carry out the encryption of the digital image. The working performances of the encryption scheme is tested and analyzed. The digital image encryption scheme presented in this paper has both a good encrypting effect and stronger security, and is practical, which is a symmetric and loss less encryption system.