A Combinational Power Analysis Method against Cryptographic Hardware  

作　　者：GUO Zheng GU Dawu LU Haining LIU Junrong XU Sen BAO Sigang GU Haihua 

机构地区：[1]School of Electronic Information and Electrical Engineering,Shanghai JiaoTong University [2]Shanghai Viewsource Information Science & Technology Co.,Ltd. [3]Shanghai Huahong Integrated Circuit Co.,Ltd.

出　　处：《China Communications》2015年第1期99-107,共9页中国通信（英文版）

基　　金：supported by Major State Basic Research Development Program(No. 2013CB338004);National Natural Science Foundation of China(No.61402286, 61202372,61202371,61309021);National Science and Technology Major Project of the Ministry of Science and Technology of China (No.2014ZX01032401-001)

摘　　要：Power analysis is a non-invaslve 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.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.

关 键 词：cryptographic hardware side channel attack power analysis combinational logic 

分 类 号：TN86[电子电信—信息与通信工程]