The Keccak sponge function family

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

1STMicroelectronics
2Radboud University

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Keccak submitted to eBASH

22 December 2008

We submitted Keccak to the ECRYPT Benchmarking of All Submitted Hashes (eBASH) project and the first results are appearing.

eBASH measures the speed of hash functions on a wide variety of machines using a tool called SUPERCOP. The software reports the number of cycles necessary to hash messages of different sizes, from 8 to 4096 bytes, and extrapolates for longer messages. It benchmarks many SHA-3 candidates, as well as older hash functions as a comparison.

The first results confirm speeds that are close to 10 cycles/byte on the reference platform defined by NIST. More precisely, 10.14 cycles/byte are reported on the machine named "cobra" (Intel Core 2 Duo E4600) using the amd64 architecture and 31.52 cycles/byte when using only 32-bit x86 instructions (long messages, median).