Differential and Rotational Cryptanalysis of Round-reduced MORUS

Ashutosh Dhar Dwivedi; Pawel Morawiecki; Sebastian Wójtowicz

doi:10.5220/0006411502750284

Differential and Rotational Cryptanalysis of Round-reduced MORUS

Ashutosh Dhar Dwivedi, Pawel Morawiecki, Sebastian Wójtowicz

Polish Academy of Sciences

Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › peer review

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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.

Originalsprog	Engelsk
Titel	Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017) : Volume 4: SECRYPT
Redaktører	Pierangela Samarati, Mohammad S. Obaidat, Enrique Cabello
Antal sider	10
Forlag	SCITEPRESS Digital Library
Publikationsdato	2017
Sider	275-284
ISBN (Elektronisk)	9789897582592
DOI	https://doi.org/10.5220/0006411502750284
Status	Udgivet - 2017
Udgivet eksternt	Ja
Begivenhed	14th International Joint Conference on e-Business and Telecommunications. ICETE 2017 - Madrid, Spanien Varighed: 24 jul. 2017 → 26 jul. 2017 Konferencens nummer: 14

Konference

Konference	14th International Joint Conference on e-Business and Telecommunications. ICETE 2017
Nummer	14
Land/Område	Spanien
By	Madrid
Periode	24/07/2017 → 26/07/2017
Sponsor	Institute for Systems and Technologies of Information, Control and Communication, Object Management Group, The Foundation for Intelligent Physical Agents, Workflow Management Coalition (WfMC)

Navn	Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017)
Vol/bind	4
ISSN	2184-2825

Emneord

Authenticated Encryption
MORUS
Rotational Cryptanalysis
Internal Differential Cryptanalysis
CAESAR Competition

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10.5220/0006411502750284Licens: CC BY-NC-ND

ashutosh_dhar_diwedi_et_al_differential_and_rotational_cryptanalysis_of_round_reduced_MORUS_publishersversionForlagets udgivne version, 243 KBLicens: CC BY-NC-ND

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Dwivedi, A. D., Morawiecki, P., & Wójtowicz, S. (2017). Differential and Rotational Cryptanalysis of Round-reduced MORUS. I P. Samarati, M. S. Obaidat, & E. Cabello (red.), Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017): Volume 4: SECRYPT (s. 275-284). SCITEPRESS Digital Library. https://doi.org/10.5220/0006411502750284

Dwivedi, Ashutosh Dhar ; Morawiecki, Pawel ; Wójtowicz, Sebastian. / Differential and Rotational Cryptanalysis of Round-reduced MORUS. Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017): Volume 4: SECRYPT. red. / Pierangela Samarati ; Mohammad S. Obaidat ; Enrique Cabello. SCITEPRESS Digital Library, 2017. s. 275-284 (Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017), Bind 4).

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title = "Differential and Rotational Cryptanalysis of Round-reduced MORUS",

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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Dwivedi, AD, Morawiecki, P & Wójtowicz, S 2017, Differential and Rotational Cryptanalysis of Round-reduced MORUS. i P Samarati, MS Obaidat & E Cabello (red), Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017): Volume 4: SECRYPT. SCITEPRESS Digital Library, Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017), bind 4, s. 275-284, 14th International Joint Conference on e-Business and Telecommunications. ICETE 2017, Madrid, Spanien, 24/07/2017. https://doi.org/10.5220/0006411502750284

Differential and Rotational Cryptanalysis of Round-reduced MORUS. / Dwivedi, Ashutosh Dhar; Morawiecki, Pawel; Wójtowicz, Sebastian.
Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017): Volume 4: SECRYPT. red. / Pierangela Samarati; Mohammad S. Obaidat; Enrique Cabello. SCITEPRESS Digital Library, 2017. s. 275-284 (Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017), Bind 4).

Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › peer review

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Dwivedi AD, Morawiecki P, Wójtowicz S. Differential and Rotational Cryptanalysis of Round-reduced MORUS. I Samarati P, Obaidat MS, Cabello E, red., Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017): Volume 4: SECRYPT. SCITEPRESS Digital Library. 2017. s. 275-284. (Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017), Bind 4). doi: 10.5220/0006411502750284