Journal on Communications ›› 2015, Vol. 36 ›› Issue (1): 142-148.doi: 10.11959/j.issn.1000-436x.2015016

• Academic paper • Previous Articles     Next Articles

Chosen-plaintext power analysis attack against SMS4 with the round-output as the intermediate data

Min WANG1,2,Zhi-bo DU2,Zhen WU2,Jin-tao RAO2   

  1. 1 College of Electronics and Information Engineering,Sichuan University,Chengdu 610041,China
    2 School of Information Security Engineering,Chengdu University of Information Technology,Chengdu 610225,China
  • Online:2015-01-25 Published:2017-06-21
  • Supported by:
    The National Science and Technology Major Project;The National High Technology Research and Development Program (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:

The method of chosen-plaintext power analysis attack against SMS4 with the round-output as the intermediate data is proposed.Firstly,this method attacks out the output of the iterative function.Then the sub key can be achieved by the output of the iterative function.And it is achieved to make the attack real and improve the efficiency,when SMS4 is attacked by taking of the method.In particular,the actual experiment of the method is done,and the results show that the attack algorithm is correct and effective.

Key words: SMS4 algorithm, power analysis attack, round output, chosen-plaintext

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