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using System;
using Org.BouncyCastle.Utilities.Encoders;
namespace Org.BouncyCastle.Math.EC.Custom.Sec
{
internal class SecT409R1Curve
: AbstractF2mCurve
{
private const int SecT409R1_DEFAULT_COORDS = COORD_LAMBDA_PROJECTIVE;
protected readonly SecT409R1Point m_infinity;
public SecT409R1Curve()
: base(409, 87, 0, 0)
{
this.m_infinity = new SecT409R1Point(this, null, null);
this.m_a = FromBigInteger(BigInteger.One);
this.m_b = FromBigInteger(new BigInteger(1, Hex.Decode("0021A5C2C8EE9FEB5C4B9A753B7B476B7FD6422EF1F3DD674761FA99D6AC27C8A9A197B272822F6CD57A55AA4F50AE317B13545F")));
this.m_order = new BigInteger(1, Hex.Decode("010000000000000000000000000000000000000000000000000001E2AAD6A612F33307BE5FA47C3C9E052F838164CD37D9A21173"));
this.m_cofactor = BigInteger.Two;
this.m_coord = SecT409R1_DEFAULT_COORDS;
}
protected override ECCurve CloneCurve()
{
return new SecT409R1Curve();
}
public override bool SupportsCoordinateSystem(int coord)
{
switch (coord)
{
case COORD_LAMBDA_PROJECTIVE:
return true;
default:
return false;
}
}
public override ECPoint Infinity
{
get { return m_infinity; }
}
public override int FieldSize
{
get { return 409; }
}
public override ECFieldElement FromBigInteger(BigInteger x)
{
return new SecT409FieldElement(x);
}
protected internal override ECPoint CreateRawPoint(ECFieldElement x, ECFieldElement y, bool withCompression)
{
return new SecT409R1Point(this, x, y, withCompression);
}
protected internal override ECPoint CreateRawPoint(ECFieldElement x, ECFieldElement y, ECFieldElement[] zs, bool withCompression)
{
return new SecT409R1Point(this, x, y, zs, withCompression);
}
public override bool IsKoblitz
{
get { return false; }
}
public virtual int M
{
get { return 409; }
}
public virtual bool IsTrinomial
{
get { return true; }
}
public virtual int K1
{
get { return 87; }
}
public virtual int K2
{
get { return 0; }
}
public virtual int K3
{
get { return 0; }
}
}
}
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