Welcome to the resource topic for 2007/141
Title:
Practical Cryptanalysis of SFLASH
Authors: Vivien Dubois, Pierre-Alain Fouque, Adi Shamir, Jacques Stern
Abstract: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.
ePrint: https://eprint.iacr.org/2007/141
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