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D.12.2.26 ellipticMult

Procedure from library crypto.lib (see crypto_lib).

Usage:
ellipticMult(N,a,b,P,k);

Return:
a list L representing the point k*P

Note:
P=(P[1]:P[2]:P[3]) a point on the elliptic curve defined by y^2z=x^3+a*xz^2+b*z^3 over Z/N

Example:
 
LIB "crypto.lib";
bigint N=11;
bigint a=1;
bigint b=6;
list P;
P[1]=2;
P[2]=4;
P[3]=1;
ellipticMult(N,a,b,P,3);
==> [1]:
==>    8
==> [2]:
==>    8
==> [3]:
==>    1