Improved chosen-plaintext DPA on block cipher SM4

被引：0
|
作者：
Chen J. [1 ]
Li H. [1 ]
Wang B. [1 ]
机构：
[1] China Information Technology Security Evaluation Center, Beijing
来源：
Qinghua Daxue Xuebao/Journal of Tsinghua University | 2017年 / 57卷 / 11期
关键词：
Block ciphers; Chosen-plaintext; Differential power analysis(DPA); Side-channel analysis; SM4; cipher;
D O I：
10.16511/j.cnki.qhdxxb.2017.26.056
中图分类号：
学科分类号：
摘要：
Since differential power analysis (DPA) is one of most important side-channel attacks on block ciphers implemented in chips, this paper revisits the DPA attack on hardware-implemented SM4. Reasonably choosing the plaintexts minimizes the affection of the variable input bits on the output bits, of the linear transformation of SM4, which leads to effective side-channel attacks on SM4. This paper deduces 8 bit-relationship in the chosen-plaintext setting by going into the linear transformation of SM4. Incorporating the bit-relationship with the known ones, this paper improves the previous chosen-plaintext DPA attacks on SM4, by proposing an analyzing module that makes better use of the side-channel information of the round-output bits. Experimental results show that the proposed manner improves the success rate of the chosen-plaintext DPA attacks on SM4. © 2017, Tsinghua University Press. All right reserved.
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页码：1134 / 1138
页数：4
相关论文
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