A Combinational Power Analysis Method against Cryptographic Hardware

作者：Guo Zheng^*; Gu Dawu; Lu Haining; Liu Junrong; Xu Sen; Bao Sigang; Gu Haihua

来源：China Communications, 2015, 12(1): 99-107.

DOI：10.1109/CC.2015.7084387

• cryptographic hardware
• side channel attack
• power analysis
• combinational logic

Power analysis is a non-invasive attack against cryptographic hardware, which effectively exploits runtime power consumption characteristics of circuits. This paper proposes a new power model which combines Hamming Distance model and the model based on the template value of power consumption in combinational logic circuit. The new model can describe the power consumption characteristics of sequential logic circuits and those of combinational logic as well. The new model can be used to improve the existing power analysis methods and detect the information leakage of power consumption. Experimental results show that, compared to CPA(Correlation Power Analysis) method, our proposed attack which adopt the combinational model is more efficient in terms of the number of required power traces.

• 出版日期2015-1
• 单位上海交通大学