Journal of Xidian University

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Impossible differential cryptanalysis on the PRINCE

WEI Yuechuan1;PAN Xiaozhong1;RONG Yisheng2;WANG Xu'an1   

  1. (1. Dept. of Electronics Technology, Engineering Univ. of Armed Police Force, Xi'an 710086, China;
    2. College of Equipment Engineering, Engineering Univ. of Armed Police Force, Xi'an 710086, China)
  • Received:2015-11-19 Online:2017-02-20 Published:2017-04-01

Abstract:

The PRINCE is a light-weight block cipher with the 64-bit block size and 128-bit key size. It is characterized by low power-consumption and low latency. PRINCEcore is the PRINCE cipher without key-whiting. For evaluating its security, a statistical testing on linear transformation is performed, and a statistical character matrix is given. By using the “miss-in-the-middle” technique, we construct a 5-round impossible differential characteristic. Based on the 5-round distinguisher, a 9-round attack on the PRINCEcore is performed. For the 9-round attack, the data complexity, time complexity and space complexity are 261.2, 254.3 and 217.7, respectively. The testing result shows that the PRINCEcore reduced to 9 rounds is not immune to impossible differential attack.