SAT-based Cryptanalysis of Authenticated Ciphers from the CAESAR Competition

Ashutosh Dhar Dwivedi, Miloš Klouček, Paweł Morawiecki, Ivica Nikolić, Josef Pieprzyk, Sebastian Wójtowicz

Abstract

We investigate six authenticated encryption schemes (ACORN, ASCON-128a, ICEPOLE-128a, Ketje Jr, MORUS, and NORX-32) from the CAESAR competition. We aim at state recovery attacks using a SAT solver as a main tool. Our analysis reveals that these schemes, as submitted to CAESAR, provide strong resistance against SAT-based state recoveries. To shed a light on their security margins, we also analyse modified versions of these algorithms, including round-reduced variants and versions with higher security claims. Our attacks on such variants require only a few known plaintext-ciphertext pairs and small memory requirements (to run the SAT solver), whereas time complexity varies from very practical (few seconds on a desktop PC) to ‘theoretical’ attacks.

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Paper Citation


in Harvard Style

Dwivedi A., Klouček M., Morawiecki P., Nikolić I., Pieprzyk J. and Wójtowicz S. (2017). SAT-based Cryptanalysis of Authenticated Ciphers from the CAESAR Competition . In Proceedings of the 14th International Joint Conference on e-Business and Telecommunications - Volume 6: SECRYPT, (ICETE 2017) ISBN 978-989-758-259-2, pages 237-246. DOI: 10.5220/0006387302370246


in Bibtex Style

@conference{secrypt17,
author={Ashutosh Dhar Dwivedi and Miloš Klouček and Paweł Morawiecki and Ivica Nikolić and Josef Pieprzyk and Sebastian Wójtowicz},
title={SAT-based Cryptanalysis of Authenticated Ciphers from the CAESAR Competition},
booktitle={Proceedings of the 14th International Joint Conference on e-Business and Telecommunications - Volume 6: SECRYPT, (ICETE 2017)},
year={2017},
pages={237-246},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006387302370246},
isbn={978-989-758-259-2},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 14th International Joint Conference on e-Business and Telecommunications - Volume 6: SECRYPT, (ICETE 2017)
TI - SAT-based Cryptanalysis of Authenticated Ciphers from the CAESAR Competition
SN - 978-989-758-259-2
AU - Dwivedi A.
AU - Klouček M.
AU - Morawiecki P.
AU - Nikolić I.
AU - Pieprzyk J.
AU - Wójtowicz S.
PY - 2017
SP - 237
EP - 246
DO - 10.5220/0006387302370246