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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The FIPS 202 draft is available

8 April 2014

Last Friday, NIST released the draft of the FIPS 202 standard. It proposes six instances: the four SHA-2 drop-in replacements with fixed output length SHA3-224 to SHA3-512, and the two future-oriented extendable-output functions SHAKE128 and SHAKE256.

The latest version of the Keccak Code Package is in line with the draft and contains test vectors for the six aforementioned instances.