Resistant to Higher-order Side-channel Attack by Inserting Random Delay
Mingyu Fan · Jisuanji gongcheng · 2008
Side-channel attack is a new cryptanalysis,and the current cryptographic algorithms are vulnerable to higher-order side-channel attack.The leakage model and adversary model are introduced,a new countermeasure based on inserting random delay is proposed to secure AES against higher-order side-channel attack.By inserting a redundant instruction,it is expected to reduce the correlation between the leakage and the inside operations,and thus make the statistic analysis infeasible.Simulation verifies the efficiency of the proposed method.