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» Computing Discrete Logarithms in Quadratic Orders
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JOC
2010
129views more  JOC 2010»
13 years 4 months ago
Discrete Logarithm Problems with Auxiliary Inputs
Let g be an element of prime order p in an abelian group and let Zp. We show that if g, g , and gd are given for a positive divisor d of p - 1, the secret key can be computed de...
Jung Hee Cheon
FC
2004
Springer
129views Cryptology» more  FC 2004»
14 years 3 months ago
A Privacy-Friendly Loyalty System Based on Discrete Logarithms over Elliptic Curves
Abstract. Systems for the support of customer relationship management are becoming increasingly attractive for vendors. Loyalty systems provide an interesting possibility for vendo...
Matthias Enzmann, Marc Fischlin, Markus Schneider ...
JC
2000
135views more  JC 2000»
13 years 9 months ago
Decision Problems in Quadratic Function Fields of High Genus
This paper provides verification procedures for a number of decision problems in quadratic function fields of odd characteristic, thereby establishing membership of these problems...
Renate Scheidler
JOC
2006
116views more  JOC 2006»
13 years 9 months ago
On the Fly Authentication and Signature Schemes Based on Groups of Unknown Order
Abstract. In response to the current need for fast, secure and cheap public-key cryptography, we propose an interactive zero-knowledge identification scheme and a derived signature...
Marc Girault, Guillaume Poupard, Jacques Stern
CVPR
2009
IEEE
15 years 4 months ago
Minimizing Sparse Higher Order Energy Functions of Discrete Variables
Higher order energy functions have the ability to encode high level structural dependencies between pixels, which have been shown to be extremely powerful for image labeling pro...
Carsten Rother (Microsoft Research Cambridge), Pus...