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Title:
Differential Analysis on Block Cipher PRIDE
Authors: Jingyuan Zhao, Xiaoyun Wang, Meiqin Wang, Xiaoyang Dong
Abstract:The lightweight block cipher PRIDE designed by Albrecht et al., appears in CRYPTO 2014. The designers claim that their method of constructing linear layer is good both in security and efficiency. In this paper, we find 16 different 2-round iterative characteristics utilizing the weaknesses of S-box and linear layer, construct several 15-round differentials. Based on one of the differentials, we launch differential attack on 18-round PRIDE. The data, time and memory complexity are 2^{60}, 2^{66} and 2^{64}, respectively.
ePrint: https://eprint.iacr.org/2014/525
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