Research on the Implementation of SM4 National Security Algorithm

Abstract

SM4 packet cipher algorithm is a symmetric packet cipher designed by China, which provides secure and complete data encryption for many information systems. There is not much work on the software optimization of SM4 algorithm implementation. In this paper, we propose a general software optimization method for implementing symmetric grouping cryptographic algorithms, which can be used for fast implementation of all symmetric encryption algorithms. The method is generalized to the fast software implementation of all symmetric encryption algorithms.