2026-03-09T12:14:24Z https://ipsj.ixsq.nii.ac.jp/oai

oai:ipsj.ixsq.nii.ac.jp:00098524 2025-01-20T06:47:06Z 581:7397:7450

Practical DFA Strategy for AES Under Limited-access Conditions Practical DFA Strategy for AES Under Limited-access Conditions Kazuo, Sakiyama Yang, Li Shigeto, Gomisawa Yu-ichiHayashi Mitsugu, Iwamoto Naofumi, Homma Takafumi, Aoki Kazuo, Ohta Kazuo, Sakiyama Yang, Li Shigeto, Gomisawa Yu-ichi, Hayashi Mitsugu, Iwamoto Naofumi, Homma Takafumi, Aoki Kazuo, Ohta [特集：組込みシステム工学] cryptography, advance encryption standard, differential fault analysis, intentional electromagnetic interference, uncertain faults. Secret data in embedded devices can be revealed by injecting computational faults using the fault analysis attacks. The fault analysis researches on a cryptographic implementation by far first assumed a certain fault model, and then discussed the key recovery method under some assumptions. We note that a new remote-fault injection method has emerged, which is threatening in practice. Due to its limited accessibility to cryptographic devices, the remote-fault injection, however, can only inject uncertain faults. In this surroundings, this paper gives a general strategy of the remote-fault attack on the AES block cipher with a data set of faulty ciphertexts generated by uncertain faults. Our method effectively utilizes all the information from various kinds of faults, which is more realistic than previous researches. As a result, we show that it can provide a decent success probability of key identification even when only a few intended faults are available among 32 millions fault injections. ------------------------------ This is a preprint of an article intended for publication Journal of Information Processing(JIP). This preprint should not be cited. This article should be cited as: Journal of Information Processing Vol.22(2014) No.2 (online) DOI http://dx.doi.org/10.2197/ipsjjip.22.142 ------------------------------ Secret data in embedded devices can be revealed by injecting computational faults using the fault analysis attacks. The fault analysis researches on a cryptographic implementation by far first assumed a certain fault model, and then discussed the key recovery method under some assumptions. We note that a new remote-fault injection method has emerged, which is threatening in practice. Due to its limited accessibility to cryptographic devices, the remote-fault injection, however, can only inject uncertain faults. In this surroundings, this paper gives a general strategy of the remote-fault attack on the AES block cipher with a data set of faulty ciphertexts generated by uncertain faults. Our method effectively utilizes all the information from various kinds of faults, which is more realistic than previous researches. As a result, we show that it can provide a decent success probability of key identification even when only a few intended faults are available among 32 millions fault injections. ------------------------------ This is a preprint of an article intended for publication Journal of Information Processing(JIP). This preprint should not be cited. This article should be cited as: Journal of Information Processing Vol.22(2014) No.2 (online) DOI http://dx.doi.org/10.2197/ipsjjip.22.142 ------------------------------ 2014-02-15 eng journal article https://ipsj.ixsq.nii.ac.jp/records/98524 1882-7764 AN00116647 情報処理学会論文誌 55 2 https://ipsj.ixsq.nii.ac.jp/record/98524/files/IPSJ-JNL5502048.pdf application/pdf 470.8 kB