Sciweavers

37 search results - page 2 / 8
» Fast algorithms for computing isogenies between elliptic cur...
Sort
View
IACR
2011
120views more  IACR 2011»
12 years 5 months ago
Towards quantum-resistant cryptosystems from supersingular elliptic curve isogenies
We present new candidates for quantum-resistant public-key cryptosystems based on the conjectured difficulty of finding isogenies between supersingular elliptic curves. The main t...
David Jao, Luca De Feo
ISSAC
2009
Springer
163views Mathematics» more  ISSAC 2009»
13 years 12 months ago
Fast arithmetics in artin-schreier towers over finite fields
An Artin-Schreier tower over the finite field Fp is a tower of field extensions generated by polynomials of the form Xp − X − α. Following Cantor and Couveignes, we give a...
Luca De Feo, Éric Schost
PKC
2004
Springer
151views Cryptology» more  PKC 2004»
13 years 10 months ago
On the Optimal Parameter Choice for Elliptic Curve Cryptosystems Using Isogeny
The isogeny for elliptic curve cryptosystems was initially used for the efficient improvement of order counting methods. Recently, Smart proposed the countermeasure using isogeny f...
Toru Akishita, Tsuyoshi Takagi
JSC
2008
85views more  JSC 2008»
13 years 5 months ago
Descent via isogeny on elliptic curves with large rational torsion subgroups
We outline PARI programs which assist with various algorithms related to descent via isogeny on elliptic curves. We describe, in this context, variations of standard inequalities w...
E. Victor Flynn, C. Grattoni
CORR
2007
Springer
173views Education» more  CORR 2007»
13 years 5 months ago
Computing modular polynomials in quasi-linear time
We analyse and compare the complexity of several algorithms for computing modular polynomials. We show that an algorithm relying on floating point evaluation of modular functions...
Andreas Enge