Encryption Based on the Permutation of Cellular Automata
细胞自动机置换群加密技术研究

With the development of the information technology ,information security,as well as the implementation of the encryption system becomes more and more complexity .and therefore new methods are explored to simplify complexity of the implementation. Cellular automata has the characters of simplicity of basic components ,locality of cellular automata interactions ,massive parallelism of information processing,and exhibits complex global properties ,which makes it suitable for the application in cryptography. This paper presents a new method of encryption,the key of the new method consists of the permutation cellular automata, the vectors inputted, and the number of the iteration. Evidently, it has larger key space than other methods with only the cellular automata itself as the key.