摘要
In this paper,we propose a hybrid power model that includes the power consumption of not only the registers but also part of the combinational logic.By doing knownkey analysis with this hybrid model,power side-channel leakage caused by correct keys can be detected.In experiment,PRINTcipher and DES algorithms were chosen as analysis targets and combinational logic s-box unit was selected to build power template.The analysis results showed the signal-to-noise ratio(SNR) power consumption increase of more than 20%after considering s-box's power consumption so that the information of keys can be obtained with just half number of power traces.In addition,the side channel-leakage detection capability of our method also shows better effectiveness that can identify the correct keys.
In this paper, we propose a hybrid power model that includes the power con- sumption of not only the registers but also part of the combinational logic. By doing known- key analysis with this hybrid model, power side-channel leakage caused by correct keys can be detected. In experiment, PRINTcipher and DES algorithms were chosen as analysis targets and combinational logic s-box unit was selected to build power template. The anal- ysis results showed the signal-to-noise ratio （SNR） power consumption increase of more than 20% after considering s-box＇s power con- sumption so that the information of keys can be obtained with just half number of power traces. In addition, the side channel-leakage detection capability of our method also shows better effectiveness that can identify the cor- rect keys.
基金
supported by Major State Basic Research Development Program(No. 2013CB338004)
National Natural Science Foundation of China(No.61402286, 61472250,61472249,61202372)
National Science and Technology Major Project of the Ministry of Science and Technology of China (No.2014ZX01032401-001)
Plan of Action for the Innovation of Science and Technology of Shanghai Municipal Science and Technology Commission(No.14511100300)
