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Authors: Ashutosh Dhar Dwivedi ; Pawel Morawiecki and Sebastian Wójtowicz

Affiliation: Polish Academy of Sciences and Institute of Computer Science, Poland

ISBN: 978-989-758-259-2

Keyword(s): Authenticated Encryption, MORUS, Rotational Cryptanalysis, Internal Differential Cryptanalysis, CAESAR Competition.

Related Ontology Subjects/Areas/Topics: Applied Cryptography ; Cryptographic Techniques and Key Management ; Data Engineering ; Databases and Data Security ; Identification, Authentication and Non-Repudiation ; Information and Systems Security

Abstract: In this paper we investigate the security margin of MORUS—an authenticated cipher taking part in the CAESAR competition. We propose a new key recovery approach, which can be seen as an accelerated exhaustive search. We also verify the resistance of MORUS against internal differential and rotational cryptanalysis. Our analysis reveals that the cipher has a solid security margin and a lack of round constants does not bring any weakness. Our work helps to reliably evaluate this new, high-performance algorithm, which is particularly important in the context of the ongoing CAESAR competition.

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Paper citation in several formats:
Dhar Dwivedi A., Morawiecki P. and Wójtowicz S. (2017). Differential and Rotational Cryptanalysis of Round-reduced MORUS.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 275-284. DOI: 10.5220/0006411502750284

@conference{secrypt17,
author={Ashutosh Dhar Dwivedi and Pawel Morawiecki and Sebastian Wójtowicz},
title={Differential and Rotational Cryptanalysis of Round-reduced MORUS},
booktitle={Proceedings of the 14th International Joint Conference on e-Business and Telecommunications - Volume 6: SECRYPT, (ICETE 2017)},
year={2017},
pages={275-284},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006411502750284},
isbn={978-989-758-259-2},
}

TY - CONF

JO - Proceedings of the 14th International Joint Conference on e-Business and Telecommunications - Volume 6: SECRYPT, (ICETE 2017)
TI - Differential and Rotational Cryptanalysis of Round-reduced MORUS
SN - 978-989-758-259-2
AU - Dhar Dwivedi A.
AU - Morawiecki P.
AU - Wójtowicz S.
PY - 2017
SP - 275
EP - 284
DO - 10.5220/0006411502750284

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