SFLASHv3, a fast asymmetric signature scheme

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Paper 2003/211

SFLASHv3, a fast asymmetric signature scheme

Nicolas T. Courtois, Louis Goubin and Jacques Patarin

Abstract

SFLASH-v2 is one of the three asymmetric signature schemes recommended by the European consortium for low-cost smart cards. The latest implementation report published at PKC 2003 shows that SFLASH-v2 is the fastest signature scheme known. This is a detailed specification of SFLASH-v3 produced in 2003 for fear of v2 being broken. HOWEVER after detailed analysis by Chen Courtois and Yang [ICICS04], Sflash-v2 is not broken and we still recommend the previous version Sflash-v2, already recommended by Nessie, instead of this version.

Note: More info on http://www.cryptosystem.net/sflash/

Metadata

Available format(s): PDF PS
Category: Public-key cryptography
Publication info: Published elsewhere. Unknown where it was published
Keywords: fast digital signatures Sflash Nessie multivariate cryptography MQ problem HFE
Contact author(s): courtois @ minrank org
History: 2005-01-10: last of 3 revisions; 2003-10-05: received; See all versions
Short URL: https://ia.cr/2003/211
License: CC BY