Presentation 2021-11-12
A Study of Deep Learning based Side-Channel Analysis on Lightweight Cryptography GIMLI-AEAD
Keigo Ito, Akira Ito, Rei Ueno, Kazuhide Fukushima, Shinsaku Kiyomoto, Naofumi Homma,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper, we describe a side-channel analysis for the lightweight cipher Gimli-AEAD. In particular, we apply a Deep-Learning based Side-Channel Analysis (DL-SCA) to Gimli-Initialization, and show that the key value can be revealed in each round. Gimli uses a unique substitution function, called Gimli substitution, for the nonlinear transformation, and the nonlinearity per round is much weaker than that of block ciphers such as AES and Present. The applicability of side-channel analysis to such ciphers with less nonlinearity is unknown. In this paper, we propose a method to estimate the intermediate values of Gimli-AEAD from the 1st round to the following rounds step by step using DL-SCA. We show that the proposed method can reveal the entire intermediate value of Gimli and recover the secret information in the case that the lower 16 bits of the nonce are changed in the analysis up to the 6th round.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Side-Channel Analysis / Deep-Learning / Lightweight Cryptography / Gimli
Paper # ISEC2021-45,SITE2021-39,LOIS2021-28
Date of Issue 2021-11-05 (ISEC, SITE, LOIS)

Conference Information
Committee SITE / ISEC / LOIS
Conference Date 2021/11/12(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Masaru Ogawa(Kobe Gakuin Univ.) / Tetsuya Izu(Fujitsu Labs.) / Toru Kobayashi(Nagasaki Univ.)
Vice Chair Takushi Otani(Kibi International Univ.) / Takeo Tatsumi(Open Univ. of Japan) / Noboru Kunihiro(Tsukuba Univ.) / Goichiro Hanaoka(AIST) / Hiroyuki Toda(NTT)
Secretary Takushi Otani(Yamaguchi Pref Univ.) / Takeo Tatsumi(Hokuriku Univ.) / Noboru Kunihiro(Fujitsu Labs.) / Goichiro Hanaoka(Ibaraki Univ.) / Hiroyuki Toda(Nagasaki Univ.)
Assistant Hideyuki Fujii(NRI-Secure) / Yusuke Tachibana(Fukuoka Inst. of Tech.) / Takahiro Matsuda(AIST) / Kazuki Fukae(Nagasaki Univ.)

Paper Information
Registration To Technical Committee on Social Implications of Technology and Information Ethics / Technical Committee on Information Security / Technical Committee on Life Intelligence and Office Information Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study of Deep Learning based Side-Channel Analysis on Lightweight Cryptography GIMLI-AEAD
Sub Title (in English)
Keyword(1) Side-Channel Analysis
Keyword(2) Deep-Learning
Keyword(3) Lightweight Cryptography
Keyword(4) Gimli
1st Author's Name Keigo Ito
1st Author's Affiliation Research Institute of Electrical Communication, Tohoku University(Tohoku Univ.)
2nd Author's Name Akira Ito
2nd Author's Affiliation Research Institute of Electrical Communication, Tohoku University(Tohoku Univ.)
3rd Author's Name Rei Ueno
3rd Author's Affiliation Research Institute of Electrical Communication, Tohoku University(Tohoku Univ.)
4th Author's Name Kazuhide Fukushima
4th Author's Affiliation KDDI Reseach Inc.(KDDI Research Inc.)
5th Author's Name Shinsaku Kiyomoto
5th Author's Affiliation KDDI Reseach Inc.(KDDI Research Inc.)
6th Author's Name Naofumi Homma
6th Author's Affiliation Research Institute of Electrical Communication, Tohoku University(Tohoku Univ.)
Date 2021-11-12
Paper # ISEC2021-45,SITE2021-39,LOIS2021-28
Volume (vol) vol.121
Number (no) ISEC-239,SITE-240,LOIS-241
Page pp.pp.20-25(ISEC), pp.20-25(SITE), pp.20-25(LOIS),
#Pages 6
Date of Issue 2021-11-05 (ISEC, SITE, LOIS)