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» A Class of Logarithmic Integrals
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ARITH
1995
IEEE
13 years 8 months ago
Semi-Logarithmic Number Systems
—We present a new class of number systems, called Semi-Logarithmic Number Systems, that constitute a family of various compromises between floating-point and logarithmic number s...
Jean-Michel Muller, Arnaud Tisserand, Alexandre Sc...
ASIACRYPT
2000
Springer
13 years 9 months ago
Security of Cryptosystems Based on Class Groups of Imaginary Quadratic Orders
Abstract. In this work we investigate the difficulty of the discrete logarithm problem in class groups of imaginary quadratic orders. In particular, we discuss several strategies t...
Safuat Hamdy, Bodo Möller
FOCS
2000
IEEE
13 years 9 months ago
On the Hardness of Graph Isomorphism
We show that the graph isomorphism problem is hard under DLOGTIME uniform AC0 many-one reductions for the complexity classes NL, PL (probabilistic logarithmic space) for every loga...
Jacobo Torán
CRYPTO
1993
Springer
118views Cryptology» more  CRYPTO 1993»
13 years 9 months ago
A Subexponential Algorithm for Discrete Logarithms over All Finite Fields
Abstract. There are numerous subexponential algorithms for computing discrete logarithms over certain classes of finite fields. However, there appears to be no published subexponen...
Leonard M. Adleman, Jonathan DeMarrais
ESORICS
2012
Springer
11 years 7 months ago
Dismantling iClass and iClass Elite
With more than 300 million cards sold, HID iClass is one of the most popular contactless smart cards on the market. It is widely used for access control, secure login and payment s...
Flavio D. Garcia, Gerhard de Koning Gans, Roel Ver...