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» On the Security of PKCS
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ACISP
2005
Springer
13 years 10 months ago
Building Secure Tame-like Multivariate Public-Key Cryptosystems: The New TTS
Abstract. Multivariate public-key cryptosystems (sometimes polynomial-based PKC’s or just multivariates) handle polynomials of many variables over relatively small fields instea...
Bo-Yin Yang, Jiun-Ming Chen
CRYPTO
2009
Springer
119views Cryptology» more  CRYPTO 2009»
13 years 11 months ago
How Risky Is the Random-Oracle Model?
RSA-FDH and many other schemes secure in the Random-Oracle Model (ROM) require a hash function with output size larger than standard sizes. We show that the random-oracle instanti...
Gaëtan Leurent, Phong Q. Nguyen
ACISP
2004
Springer
13 years 10 months ago
Theoretical Analysis of XL over Small Fields
Abstract. XL was first introduced to solve determined or overdetermined systems of equations over a finite field as an “algebraic attack” against multivariate cryptosystems....
Bo-Yin Yang, Jiun-Ming Chen