public PointJacobian(BigInteger x, BigInteger y, EllipticCurveWeierstrass E)
{
this.x = x;
this.y = y;
this.z = 1;
this.E = E;
}
public PointAffine(BigInteger x, BigInteger y, BigInteger z, EllipticCurveWeierstrass E)
{
this.x = x;
this.y = y;
this.z = z;
this.E = E;
}
}//projective
public static BigInteger GetFactorJacobian(BigInteger n, int B1, int B2)
{
BigInteger x, y, g;
var E = EllipticCurveWeierstrass.GenerateCurveRandom(n, out x, out y, out g, false);
var P = new PointJacobian(x, y, E);
if (g > 1 && g < n)
{
return(g);
}
//STEP 1
var P1 = P as IPoint;
var result = StageOneProjective(ref P1, n, B1);
if (result > 1 || result == 0)
{
return(result);
}
//STEP 2
result = StageTwoProjective(ref P1, n, B1, B2);
return(result);
}//jacobian
public static BigInteger GetFactorAffine(BigInteger n, int B1, int B2)
{
BigInteger x, y, g;
var E = EllipticCurveWeierstrass.GenerateCurveRandom(n, out x, out y, out g, false);
var P = new PointAffine(x, y, E);
if (g > 1 && g < n)
{
return(g);
}
//STEP 1
var P1 = P as IPoint;
var result = StageOneAffine(ref P1, n, B1);
if (result > 1 || result == 0)
{
return(result);
}
//STEP 2
P = P1 as PointAffine;
result = StageTwoAffine(ref P1, n, B1, B2);
return(result);
}//first & second stage
public PointProjective(BigInteger x, BigInteger y, EllipticCurveWeierstrass E)
{
this.x = x;
this.y = y;
this.z = 1;
this.E = E;
}
public override bool Equals(Object obj)
{
if (obj == null)
{
return(false);
}
EllipticCurveWeierstrass E = obj as EllipticCurveWeierstrass;
return(new EllipticCurveWeierstrass(this.a, this.b, this.n) == E);
}
