Low-cost Hardware Implementation of SM4 Based on Composite Field

摘要：

　　This paper presents an iterative encryption architecture of SM4 arithmetic in combinational logic.Previous works using Lookup Tables to implement the Sbox function have relied on circuits with a large area.Using the Normal Basis in the Composite Field,the proposed design reduces the circuitsarea.We test all feasible sets of Normal Basis and finally find 8 sets for correct encryption of SM4.Through the simulation in Modelsim,the proposed architecture achieves the right result within 32 rounds.Compared with the other designs,our design uses less hardware and has a big advantage in resource constrained applications.

关键词： SM4 Composite Field Normal basis Sbox Iterative architecture

作者: Hailiang Fu Guoqiang Bai xingjun Wu

作者单位: Institute of Microelectronics,Tsinghua University,Beijing,China Tsinghua National Laboratory for Information Science and Technology

会议类型: 国际会议

会议名称: 2016IEEE第二届信息技术、网络、电子及自动化控制会议

会议地点: 重庆

会议语种:英文

页码: 260-264

在线出版日期: 2016-03-20（万方平台首次上网日期，不代表论文的发表时间）