Journal on Communications ›› 2015, Vol. 36 ›› Issue (Z1): 131-135.doi: 10.11959/j.issn.1000-436x.2015291

• Academic paper • Previous Articles     Next Articles

Mutual information power analysis attack in the frequency domain of the crypto chip

Min WANG,Zhen WU,Jin-tao RAO,Zhi-bo DU   

  1. College of Information Security Engineering,Chengdu University of Information Technology,Chengdu 610225,China
  • Online:2015-11-25 Published:2015-12-29
  • Supported by:
    The National Science and Technology Major Project;The National High Technology Research and Development (863 Program);“The 12th five-years” National Cryptogram Development Fund;Sichuan Science and Technology Support Programmer;Sichuan Provincial Education Department Key Scientific Research Projects;The Scientific Research Foundation of CUIT

Abstract:

Based on the mutual information power analysis attack in time domain of the crypto chip,a method for analyzing the energy of the maximum mutual information coefficient in the frequency domain was proposed.This method combined the principle of password chip information leakage in frequency domain and the principle of mutual information power analysis.The concept of maximum mutual information coefficient was introduced,which avoided the operation of accurate alignment in time domain.Experiments on the algorithm of SMS4 show that the effectiveness of the maximum mutual information coefficient attack in the frequency domain is extended to the method of the side channel energy analysis.

Key words: side-channel attack, mutual information, frequency domain, maximum mutual information coefficien

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