An Improved Chaos Based Cryptography and Steganography for Secure Data Communication

Abstract

 This research paper presented a chaos-based security to protect image or video data. As image or video are multimedia data which will be in large volumes, requires a sophisticated algorithm to protect against various security attacks. Many algorithms have been proposed, each has its own merits and limitations. This paper proposed an Extended Chebyshev chaotic map to generate keys for encryption and decryption process. The system is tested and proved that the keys are sensitive to initial parameters and improved a greater number of bit variations to resist against various attacks.