Cryptanalysis of the LAKE hash family

Biryukov, Alex, Gauravaram, Praveen, Guo, Jian, Khovratovich, Dmitry, Ling, San, Matusiewicz, Krystian, Nikolić, Ivica, Pieprzyk, Josef, & Wang, Huaxiong (2009) Cryptanalysis of the LAKE hash family. Lecture Notes in Computer Science : Fast Software Encryption, 5665, pp. 156-179.

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We analyse the security of the cryptographic hash function LAKE-256 proposed at FSE 2008 by Aumasson, Meier and Phan. By exploiting non-injectivity of some of the building primitives of LAKE, we show three different collision and near-collision attacks on the compression function. The first attack uses differences in the chaining values and the block counter and finds collisions with complexity 233. The second attack utilizes differences in the chaining values and salt and yields collisions with complexity 242. The final attack uses differences only in the chaining values to yield near-collisions with complexity 299. All our attacks are independent of the number of rounds in the compression function. We illustrate the first two attacks by showing examples of collisions and near-collisions.

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ID Code: 70185
Item Type: Journal Article
Refereed: Yes
Additional Information: 16th International Workshop, FSE 2009 Leuven, Belgium, February 22-25, 2009 Revised Selected Papers
Keywords: Data Encryption, Data Structures, Cryptology and Information Theory, Coding and Information Theory, Algorithm Analysis and Problem Complexity, Math Applications in Computer Science, Symbolic and Algebraic Manipulation
DOI: 10.1007/978-3-642-03317-9_10
ISSN: 0302-9743
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2009 Springer Berlin Heidelberg
Deposited On: 15 Apr 2014 05:27
Last Modified: 22 Jan 2015 17:50

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