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» On the Security of PKCS
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ACISP
2005
Springer
15 years 3 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»
15 years 4 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
15 years 2 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