Journal on Communications ›› 2023, Vol. 44 ›› Issue (6): 175-182.doi: 10.11959/j.issn.1000-436x.2023109

• Papers • Previous Articles     Next Articles

Quantum cryptanalysis of lightweight block cipher Piccolo

Xiaoni DU1,2, Xiangyu WANG1, Lifang LIANG1, Kaibin LI3   

  1. 1 College of Mathematics and Statistic, Northwest Normal University, Lanzhou 730070, China
    2 Key Laboratory of Cryptography and Data Analytics, Northwest Normal University, Lanzhou 730070, China
    3 College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China
  • Revised:2023-04-08 Online:2023-06-25 Published:2023-06-01
  • Supported by:
    The National Natural Science Foundation of China(62172337);Key Project of Gansu Natural Science Foundation(23JRRA685)

Abstract:

By taking the characteristics of the structure of Piccolo algorithm RP permutation into consideration, a 3-round quantum distinguisher was proposed.Based on Grover meets Simon algorithm, the 6-round of quantum key recovery attack was given.The results show that the key can be recovered 56 bit with the time complexity 2 28 and the occupation of 464 qubit.Moreover, if attack rounds r>6,the time complexity is 2 28+16(r-6), which is 1 2 68 of Grover quantum brute-force search.The time complexity of the proposed attack method is significantly reduced compared with Grover search and is also better than that of traditional cryptanalysis, which lays a foundation for the subsequent research on quantum attacks of lightweight block ciphers.

Key words: quantum cryptanalysis, Piccolo algorithm, Grover algorithm, Simon algorithm

CLC Number: 

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