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Paper 2001/041

Solving Elliptic Curve Discrete Logarithm Problems Using Weil Descent

Michael Jacobson and Alfred Menezes and Andreas Stein

Abstract

We provide a concrete instance of the discrete logarithm problem on an elliptic curve over F_{2^{155}} which resists all previously known attacks, but which can be solved with modest computer resources using the Weil descent attack methodology of Frey. We report on our implementation of index-calculus methods for hyperelliptic curves over characteristic two finite fields, and discuss the cryptographic implications of our results.

Metadata
Available format(s)
PDF PS
Category
Foundations
Publication info
Published elsewhere. Unknown where it was published
Keywords
elliptic curve discrete logarithm problemWeil descent
Contact author(s)
ajmeneze @ uwaterloo ca
History
2001-05-20: received
Short URL
https://ia.cr/2001/041
License
Creative Commons Attribution
CC BY
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