Rotational Differential-Linear Attack on Chaskey

Authors：Qin, Yuan; Wang, Gaoli^*; Zhang, Guoyan

Source：Security and Communication Networks, 2022, 2022: 4186874.

DOI：10.1155/2022/4186874

• LARGE S-BOXES
• SECURITY EVALUATION
• MILP
• CRYPTANALYSIS

Rotational/Rotational-XOR differential-linear attack is a kind of powerful attack on ARX primitives. In this paper, we analyse the message authentication code algorithm-Chaskey-by using rotational differential-linear attack and using partitioning technique for key recovery. We presentthe results of distinguishing attack under weak-key and related-key settingswith correlation 2-55.636 for 9-round Chaskey. This is for the first time rotational differential-linear distinguisher has been used to analyse Chaskey. It is concluded that Chaskey can resist against rotational differential-linear attack.

• Institution
  山东大学