Affiliations: [a]
College of Information Science and Engineering, Hunan University, Changsha, China
| [b]
Department of Computer Science, State University of New York, New Paltz, New York, USA
| [c]
College of Mathematics and Computer Science, Performance Computing and Stochastic Information Processing (Ministry of Education of China), Hunan Normal University, Changsha, China
Correspondence:
[*]
Corresponding author. Siyang Yu, College of Information Science and Engineering, Hunan University, Changsha
410082, China. E-mail: nickysy@hnu.edu.cn.
Abstract: SM4 is a block cipher proposed by the Chinese government. Strengthening the research and extension of SM4 is significant to the development and promotion of Chinese cryptography standards. To date, research relevant to SM4 is rare. Thus, we propose the implementation of an SM4 algorithm resistant to power analysis. Ideally, a secure masking scheme is used for the SM4 cipher, which is particularly suited for implementation in the application specific integrated circuit. Moreover, the mask scheme in our chip implementation process is improved to make SM4 safer. Simulation results confirm that the use of counteractive measures resistant to power analysis is credible.
Keywords: SM4, S-box, Galois Field, mask, zero attack
