Digital image encryption algorithm based on pixels

Abstract

A new image encryption algorithm based on pixels is proposed in this paper. All the strategies, programs, parameters, encryption and decryption steps and other key technologies are given in detail. First, scrambling the image pixels, then through the method of watermark increasing the difficulty of its decoded. At last, choose a camouflaged image to vision or the pixels of the true image, getting the final encryption image. The key parameters are encrypted by Elliptic Curve Cryptography (ECC). We verify and analyze the algorithm security, reliability and efficiency with an experiment. The experiment results and algorithm analyses indicate that the new algorithm possesses a large key space and high level security and the time needed for encrypting the interactive image tends to +∞. It provides a new access to satisfy high level security of interactive information requirements in the fields of aerospace, military, confidential, financial and economic, national security and so on.