Insert Random Time-Delay Defense High Order Side-Channel Attack
Jian Bo Yao, Tao Zhang · Advanced engineering forum · 2012
Side-channel attack is a non destructive physical attacks method. The current cryptographic algorithms are vulnerable to higher-order side-channel attack. To defense high order Side-channel attack, in this paper, 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. The simulation shows the method is efficiency.