## CryptoDB

### Paper: Practical Cryptanalysis of SFLASH

Authors: Vivien Dubois Pierre-Alain Fouque Adi Shamir Jacques Stern URL: http://eprint.iacr.org/2007/141 Search ePrint Search Google In this paper, we present a practical attack on the signature scheme SFLASH proposed by Patarin, Goubin and Courtois in 2001 following a design they had introduced in 1998. The attack only needs the public key and requires about one second to forge a signature for any message, after a one-time computation of several minutes. It can be applied to both SFLASHv2 which was accepted by NESSIE, as well as to SFLASHv3 which is a higher security version.
##### BibTeX
@misc{eprint-2007-13423,
title={Practical Cryptanalysis of SFLASH},
booktitle={IACR Eprint archive},
keywords={public-key cryptography / Cryptanalysis multivariate schemes},
url={http://eprint.iacr.org/2007/141},
note={ Pierre-Alain.Fouque@ens.fr 13623 received 20 Apr 2007},
author={Vivien Dubois and Pierre-Alain Fouque and Adi Shamir and Jacques Stern},
year=2007
}