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D.12.3.30 Schoof

Procedure from library crypto.lib (see crypto_lib).

Usage:
Schoof(N,a,b);

Return:
the number of points of the elliptic curve defined by y^2=x^3+a*x+b over Z/N

Note:
algorithm of Schoof

Example:
 
LIB "crypto.lib";
Schoof(32003,71,602);
==> 32021