The Keccak sponge function family

Guido Bertoni1, Joan Daemen1,2, Michaël Peeters1 and Gilles Van Assche1

1STMicroelectronics
2Radboud University

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The figures above are available under the Creative Commons Attribution license. In short, they can be freely used, provided that attribution is properly done in the figure caption, either by linking to this webpage or by citing the article where the particular figure first appeared.

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Second cryptanalysis prize deadline extension

3 July 2009

In May, we announced the second prize for the best cryptanalysis on Keccak to encourage third-party analysis. As no submission has been received yet, we have decided to extend the deadline: the results must be publicly available on an URL that is sent to keccak -at- noekeon -dot- org before Monday August 31st, 2009 at 23:59 GMT+2.

The prize itself is also extended and now consists of the full travel set, including the Bialetti coffee machine, cups, spoons, a canister for sugar, some of the best Italian coffee and a case for easy carry to cryptographic conferences.

Again, we hope analyzing Keccak is a fun and interesting challenge, and we appreciate any submitted work!