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Published in:
2009 | OriginalPaper | Chapter
Cryptanalysis of Twister
Authors : Florian Mendel, Christian Rechberger, Martin Schläffer
Published in: Applied Cryptography and Network Security
Publisher: Springer Berlin Heidelberg
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In this paper, we present a semi-free-start collision attack on the compression function for all Twister variants with negligible complexity. We show how this compression function attack can be extended to construct collisions for Twister-512 slightly faster than brute force search. Furthermore, we present a second-preimage and preimage attack for Twister-512 with complexity of about 2
384
and 2
456
compression function evaluations, respectively.