A cryptosystem based on simple physical models

It is well known that some simple physical models can lead to complex behaviors. Moreover, some simple models possess a strongly logical expression ability. A cryptosystem is proposed based on two simple physical modes, which has the performances of its reversibility, parallelism, simplicity and efficiency. The simulation results show that the system presents satisfactory randomness and sensitivity. It is a promising method to use simple physical models for constructing a good cryptosystem.