Symmetric Cryptographic Algorithm Based on Permutation

With the development of information age, information security becomes more and more important. As a result, the research of encryption algorithms is necessary. Although the encryption algorithm has a lot of research results until now, from the performance point of view, the traditional encryption algorithms can not meet the needs of existing users. In this paper, we design a symmetric encryption algorithm based on the full permutation, combining the idea of full permutation with the traditional symmetric encryption algorithms. It greatly reduced the computational complexity of the encryption process without reducing the security. In the experiment, we compared the performance of many encryption algorithms. The results show that our algorithm has a great improvement in performance.