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Internal collision attack on Maraca

Authors: Anne Canteaut and Maria Naya-Plasencia

Published in: Dagstuhl Seminar Proceedings, Volume 9031, Symmetric Cryptography (2009)

Abstract

We present an internal collision attack against the new hash function Maraca which has been submitted to the SHA-3 competition. This attack requires 2^{237} calls to the round function and its complexity is lower than the complexity of the generic collision attack when the length of the message digest is greater than or equal to 512. It is shown that this cryptanalysis mainly exploits some particular differential properties of the inner permutation, which are in some sense in contradiction with the usual security criterion which guarantees the resistance to differential attacks.

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Anne Canteaut and Maria Naya-Plasencia. Internal collision attack on Maraca. In Symmetric Cryptography. Dagstuhl Seminar Proceedings, Volume 9031, pp. 1-15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

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@InProceedings{canteaut_et_al:DagSemProc.09031.8,
  author =	{Canteaut, Anne and Naya-Plasencia, Maria},
  title =	{{Internal collision attack on Maraca}},
  booktitle =	{Symmetric Cryptography},
  pages =	{1--15},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2009},
  volume =	{9031},
  editor =	{Helena Handschuh and Stefan Lucks and Bart Preneel and Phillip Rogaway},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.09031.8},
  URN =		{urn:nbn:de:0030-drops-19538},
  doi =		{10.4230/DagSemProc.09031.8},
  annote =	{Keywords: Hash function, collision attack, differential cryptanalysis, Boolean function}
}

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Internal collision attack on Maraca

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