Results 1 to 10 of about 4,819,653 (62)

Schoof's algorithm and isogeny cycles

open access: closedInternational Workshop on Ant Colony Optimization and Swarm Intelligence, 1994
The heart of Schoof's algorithm for computing the cardinality m of an elliptic curve over a finite field is the computation of m modulo small primes l. Elkies and Atkin have designed practical improvements to the basic algorithm, that make use of “good” primes l. We show how to use powers of good primes in an efficient way.
François Morain, Jean-Marc Couveignes
semanticscholar   +5 more sources

Remarks on the Schoof-Elkies-Atkin algorithm [PDF]

open access: yesMathematics of Computation, 1998
Schoof’s algorithm computes the number m m of points on an elliptic curve E E defined over a finite field F q {\Bbb F}_q . Schoof determines m m modulo small primes ℓ \ell using the characteristic equation of ...
L. Dewaghe
openaire   +4 more sources

Efficient Implementation of Schoof’s Algorithm in Case of Characteristic 2 [PDF]

open access: yesInternational Conference on Theory and Practice of Public Key Cryptography, 2000
In order to choose a secure elliptic curve for Elliptic Curve Cryptosystems, it is necessary to count the order of a randomly selected elliptic curve. Schoof’s algorithm and its variants by Elkies and Atkin are known as efficient methods to count the orders of elliptic curves.
Kazuhiro Yokoyama   +2 more
openaire   +3 more sources

Efficient Implementation of Schoof’s Algorithm [PDF]

open access: yesInternational Conference on the Theory and Application of Cryptology and Information Security, 1998
Schoof's algorithm is used to find a secure elliptic curve for cryptosystems, as it can compute the number of rational points on a randomly selected elliptic curve defined over a finite field. By realizing efficient combination of several improvements, such as Atkin-Elkies's method, the isogeny cycles method, and trial search by match-and-sort ...
Masayuki Noro   +3 more
openaire   +3 more sources

Universal elliptic Gau�� sums for Atkin primes in Schoof's algorithm

open access: green, 2017
This work builds on earlier results. We define universal elliptic Gau sums for Atkin primes in Schoof's algorithm for counting points on elliptic curves. Subsequently, we show these quantities admit an efficiently computable representation in terms of the $j$-invariant and two other modular functions.
Christian J. Berghoff
openaire   +4 more sources

Elliptic Gau�� sums and Schoof's algorithm

open access: green, 2016
16 pages, revised ...
Christian J. Berghoff
openaire   +3 more sources

Binary quadratic forms, elliptic curves and Schoof's algorithm

open access: closed, 2015
In this thesis, I show that the representation of prime integers by reduced binary quadratic forms of given discriminant can be obtained in polynomial complexity using Schoof's algorithm for counting the number of points of elliptic curves over finite fields.
Federico Pintore
openaire   +2 more sources

Counting points on abelian surfaces over finite fields with Elkies's method [PDF]

open access: yesarXiv.org, 2022
We generalize Elkies's method, an essential ingredient in the SEA algorithm to count points on elliptic curves over finite fields of large characteristic, to the setting of p.p. abelian surfaces.
J. Kieffer
semanticscholar   +1 more source

Speeding-Up Elliptic Curve Cryptography Algorithm

open access: yesIACR Cryptology ePrint Archive, 2022
In recent decades there has been an increasing interest in Elliptic curve cryptography (ECC) and, especially, the Elliptic Curve Digital Signature Algorithm (ECDSA) in practice.
Diana Maimuţ, A. Matei
semanticscholar   +1 more source

Fast algorithms for computing the eigenvalue in the Schoof-Elkies-Atkin algorithm [PDF]

open access: yesProceedings of the 2006 international symposium on Symbolic and algebraic computation, 2006
The Schoof-Elkies-Atkin algorithm is the only known method for counting the number of points of an elliptic curve defined over a finite field of large characteristic. Several practical and asymptotical improvements for the phase called eigenvalue computation are proposed.
Gaudry, Pierrick, Morain, François
openaire   +3 more sources

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