Integral fault analysis of Midori64 lightweight cipher

Yuechuan Wei; Xiangru Wang; Zichen Zhou

doi:10.1117/12.2628484

21 April 2022 Integral fault analysis of Midori64 lightweight cipher

Yuechuan Wei, Xiangru Wang, Zichen Zhou

Proceedings Volume 12175, International Conference on Network Communication and Information Security (ICNCIS 2021); 121750F (2022) https://doi.org/10.1117/12.2628484
Event: International Conference on Network Communication and Information Security (ICNCIS 2021), 2021, Beijing, China

Abstract

Midori is a low energy block cipher proposed at ASIACRYPT 2015. It is composed of two variants: Midori64 and Midori128, with block sizes equal to 64 and 128 bits respectively. These two ciphers provide the function of both encryption and decryption for security communication and storage with minimal area and energy overhead. In this paper, the immunity of Midori64 against integral fault attacks is investigated. Based on integral properties of Midori64 and fault model, a method to broken this cipher is presented. By injecting random faults in the 5^th round backwards in the encryption process, the faulty ciphertexts are obtained. Based on 4-round integral distinguisher of Midori64, the last round key is recovered by flittering the wrong key values. The experimental simulation results show that the key candidate values can be reduced from 2⁶⁴ to 2^31.2 by 16 sets faults injection. Using the last round key to decrypt the ciphertexts by one round, a same method can be used to recover the penultimate round key and thus the master key can be recovered by using the key expansion algorithm.

Citation Download Citation

Yuechuan Wei, Xiangru Wang, and Zichen Zhou "Integral fault analysis of Midori64 lightweight cipher", Proc. SPIE 12175, International Conference on Network Communication and Information Security (ICNCIS 2021), 121750F (21 April 2022); https://doi.org/10.1117/12.2628484

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