Four dimensional hyperchaotic communication system based on dynamic feedback synchronization technique for image encryption systems

<span>This paper presents the design and simulation of a hyperchaotic communication system based on four dimensions (4D) Lorenz generator. The synchronization technique that used between master/transmitter slave/receiver is dynamic feedback modulation (DFM). mismatch error master dynamics slave are calculated continuously to maintain sync process. information signal (binary image) masked (encrypted) by sample x overall carried out using MATLAB Simulink software. results prove suitable for securing plain-data, in particular image data with size 128×128 pixels within 0.1 second required encryption, decryption presence channel noise. gray colored images show can accurately decipher ciphered image, but low level distortion due These make proposed cryptosystem real time secure communications.</span>