JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) ›› 2016, Vol. 51 ›› Issue (3): 132-142.doi: 10.6040/j.issn.1671-9352.0.2015.358

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Security evaluation for Piccolo structure against differential and linear cryptanalysis

YIN Qing, WANG Nian-ping*   

  1. School of Cryptography Engineering, the PLA Information Engineering University, Zhengzhou 450000, Henan, China
  • Received:2015-07-27 Online:2016-03-20 Published:2016-04-07

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Abstract: Piccolo structure is a block cipher structure induced from block cipher Piccolo. The design features of this structure are round function and shifting transformation. To evaluate the security of Piccolo structure, the security against differential and linear cryptanalysis was investigated in detail. The lower bounds on number of active round function and active S-boxes for arbitrary round differential characteristics were given. By studying the duality between differential characteristics and linear approximations of Piccolo structure, the lower bounds on number of active round function and active S-boxes for arbitrary round linear approximations were also given.

Key words: linear cryptanalysis, active S-boxes, differential cryptanalysis, Piccolo structure, active round function, lower bounds

CLC Number: 

  • TN918.2
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