中圖分類號(hào)：TP309.7 文獻(xiàn)標(biāo)志碼：A DOI: 10.16157/j.issn.0258-7998.222866 中文引用格式： 高博，陳琳，嚴(yán)迎建. 基于TSDM的抗時(shí)間維度隨機(jī)化方法研究[J]. 電子技術(shù)應(yīng)用，2023，49(2)：86-91. 英文引用格式： Gao Bo，Chen Lin，Yan Yingjian. Research on anti-time dimension randomization method based on TSDM[J]. Application of Electronic Technique，2023，49(2)：86-91.
Research on anti-time dimension randomization method based on TSDM
Gao Bo1，2，Chen Lin1，Yan Yingjian1
1.Information Engineering University， Zhengzhou 450001， China；2.92957 Troops of PLA， Zhoushan 316000， China
Abstract： Time-domain randomization makes side channel attacks difficult to align side information by inserting random delays, redundant operations, and variable frequency clocks, thereby reducing the efficiency. Aiming at the problem of time-domain misalignment of energy traces caused by time-dimensional randomization technology, this paper proposes an anti-time-domain randomization method based on Trend Series Dynamic Matching (TSDM). This method analyzes the distribution of attack interest points, and describes the shape feature of the energy trace, compresses the dimension of the energy trace, preserves the sensitive information of energy attacks, suppresses the negative impact of noise, realizes the dynamic alignment of data, and improves the efficiency of side channel attacks. This paper, conducts method verification and performance analysis for three typical time randomization techniques. Compared with various classical alignment methods, this method has better data alignment effect in different noise environments, and the number of energy traces required for the success rate of energy attack to reach 100% respectively decreased by 23.8%, 24.2%, 11.3%.
Key words : side channel attack；time-domain randomization；dynamic time warping；success rate
