A novel encryption method

According to the principle of digital chaos encryption technology we design chaotic encryption algorithm based on the random variation of parameters. By using sequence quantized value chaos iteration is controlled, parameters in the process of chaotic mapping iteration are randomly changed, and the random switching of multi-chaotic systems is realized, finally achieve the purpose of disturbing chaos orbits and resisting chaos degradation; By using the one-dimensional piecewise linear chaotic mapping (Pwlcm) as a pseudo-random sequence generator, we design a sequence encryption algorithm of bi-chaotic system; Through nonlinear operations to the 0-1 sequence of double chaotic systems, the nonlinear combination of the system has been realized. It is proved to have good cryptographic properties and good encryption results by the image encryption test.