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Differential Fault Analysis on 3DES Middle Rounds Based on error propagation

Chinese Journal of Electronics 2022年第1期31卷 68-78页

作者： MA Xiangliang ZHANG Lizhen WU Liji LI Xia ZHANG Xiangmin LI Bing LIU Yuling School of Integrated Circuits Tsinghua University Beijing National Research Center for Information Science and Technology National Research Center for Information Technology Security Institute of Information Engineering Chinese Academy of Sciences School of Cyber Security University of Chinese Academy of Sciences

Since differential fault analysis(DFA)was first implemented on data encryption standard(DES), many scholars have improved this attack and extended the limit of the original last two rounds to the earlier rounds. However, the performance of the novel attacks which target middle rounds is not effective, i.e. the number of correct/incorrect ciphertexts required is very large and the recovered result maybe not correct. We address this problem by presenting new DFA methods that can break 3 DES when injecting faults at round 12 or *** simulating the process of single-bit error propagation,we have built two kinds of error propagation models as well as an intermediate error propagation state *** we simplify the intermediate states into state templates that will be further used to locate the injected fault position, which is the main difficulty of implementing fault injection in the middle rounds. Finally, in terms of the idea of error propagation and probability theory, we can recover the last round key only using 2 sets of correct/incorrect ciphertexts when inducting fault in the13 th round and 4 sets of correct/incorrect ciphertexts when inducting fault in the 12 th round.

关键词： intermediate error propagation state table injected fault position 3DES middle rounds cryptography probability theory state templates fault diagnosis data encryption standard error statistics error propagation models fault injection single-bit error propagation DFA methods inducting fault differential fault analysis

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