J4 ›› 2012, Vol. 47 ›› Issue (7): 55-58.

• Articles • Previous Articles     Next Articles

Impossible differential cryptanalysis of reduced-round MIBS

DU Cheng-hang1,2, CHEN Jia-zhe1,2   

  1. 1. School of Mathematics, Shandong University, Jinan 250100, Shandong, China;
     2. Key Laboratory of Cryptologic Technology and Information Security, Ministry of Education,
    Shandong University, Jinan 250100, Shandong, China
  • Received:2011-05-31 Online:2012-07-20 Published:2012-09-01

Abstract:

MIBS is suitable for extremely constrained environments, such as RFID tags. Based on the analysis of the flaw in Asli Bay’s work, a new impossible differential cryptanalysis is proposed. The attack of MIBS reduced to 12 rounds needs 259chosen plaintexts and 263encryptions.

Key words: lightweight block cipher; MIBS; impossible differential cryptanalysis

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