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所属单位：电子信息工程学院

发表刊物：IEICE ELECTRONICS EXPRESS

关键字：advanced encryption standard (AES) SM4 S-Box composite field arithmetic (CFA)

摘要：In this paper, a new compact implementation of S-Box based on composite field arithmetic (CFA) is proposed for block ciphers AES and SM4. Firstly, using CFA technology, the multiplicative inverse (MI) over GF(2(8)) is mapped into GF((2(4))(2)) and the new architecture of S-Box is designed. Secondly, the MI over GF(2(4)) is optimized by Genetic algorithm (GA), and the multiplication over GF(2(4)) and the constant matrix multiplications are optimized by delay-aware common sub-expression elimination (DACSE) algorithm. Finally, compared with the direct implementation, the area reduction of MI over GF((2(4))(2)) and the new S-Box are up to 49.29% and 43.80%, severally. In 180nm 1.8V COMS technology, compared to the synthesized results of AES S-Box and SM4 S-Box, the area and power consumption of the new S-Box are reduced by 24.76% and 38.54%, respectively.

ISSN号：1349-2543

是否译文：否

发表时间：2017-06-10

合写作者：Liu, Yaoping,Zhang, Xiaoqiang,周芳

通讯作者：吴宁