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Practical Key-recovery For All Possible Parameters of SFLASH
public-key cryptography / SFLASH multivariate cryptography practical cryptanalysis key-recovery
2012/3/28
In this paper we present a new practical key-recovery attack on the SFLASH signature scheme. SFLASH is a derivative of the older $C^*$ encryption and signature scheme that was broken in 1995 by Patari...
Practical Key-recovery For All Possible Parameters of SFLASH
public-key cryptography SFLASH multivariate cryptography practical cryptanalysis key-recovery
2011/6/9
In this paper we present a new practical key-recovery attack on the SFLASH signature scheme. SFLASH is a derivative of the older $C^*$ encryption and signature scheme that was broken in 1995 by Patari...
The SFLASH signature scheme stood for a decade as the
most successful cryptosystem based on multivariate polynomials, before
an e cient attack was nally found in 2007. In this paper, we review its
...
Short Signatures, Provable Security, Generic Attacks and Computational Security of Multivariate Polynomial Schemes such as HFE, Quartz and Sflash
Generic signature schemes short signatures provable security
2009/3/27
The object of this paper is the concrete security of recent
multivariate signature schemes. A major challenge is to reconcile some
”tricky” ad-hoc constructions that allow to make short signatures, ...
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...
