Research And Implementation Of Image Encryption Algorithm Based On Chaos

With the advancement of science and technology and the improvement of living standards,images,as a carrier of information transmission,are inseparable from our lives.Since image multimedia may contain our personal privacy,business secrets or state secrets,it is an urgent problem to be solved to avoid the waste of image information and protect the security of image information during transmission and storage.The purpose of this study is to improve the security of image information during transmission and storage.Using the natural applicability of chaos in encryption,the following image encryption algorithms are designed:(1)Grayscale image based on Logistic and two-dimensional Lorenz chaotic system Encryption algorithm,this algorithm is based on a chaotic system with low algorithm complexity,combined with the principles of scrambling encryption and diffusion encryption,to achieve bit-planelevel encryption of the image,and then based on the above algorithm to construct a color image encryption algorithm;(2)Propose a new three-dimensional continuous chaotic system,connect the system with Logistic and combine the date encryption field to construct a color image encryption algorithm;(3)Construct a new five-dimensional chaotic system,combining the characteristics of the five-dimensional chaotic system,use its The test of the algorithm proposed in this research proves that the algorithm proposed in this research has the characteristics of high security and strong practicability.To improve the algorithm.The generalization of the system is to build a GUI interface in the MATLAB programming environment to realize the above encryption algorithm simulation system.In addition,the system can also implement algorithm encryption security analysis.