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package org.spongycastle.math.ec.custom.sec;
import java.math.BigInteger;
import org.spongycastle.math.ec.ECCurve;
import org.spongycastle.math.ec.ECFieldElement;
import org.spongycastle.math.ec.ECPoint;
import org.spongycastle.util.encoders.Hex;
public class SecP521R1Curve extends ECCurve.AbstractFp
{
public static final BigInteger q = new BigInteger(1,
Hex.decode("01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"));
private static final int SecP521R1_DEFAULT_COORDS = COORD_JACOBIAN;
protected SecP521R1Point infinity;
public SecP521R1Curve()
{
super(q);
this.infinity = new SecP521R1Point(this, null, null);
this.a = fromBigInteger(new BigInteger(1,
Hex.decode("01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC")));
this.b = fromBigInteger(new BigInteger(1,
Hex.decode("0051953EB9618E1C9A1F929A21A0B68540EEA2DA725B99B315F3B8B489918EF109E156193951EC7E937B1652C0BD3BB1BF073573DF883D2C34F1EF451FD46B503F00")));
this.order = new BigInteger(1, Hex.decode("01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5C9B8899C47AEBB6FB71E91386409"));
this.cofactor = BigInteger.valueOf(1);
this.coord = SecP521R1_DEFAULT_COORDS;
}
protected ECCurve cloneCurve()
{
return new SecP521R1Curve();
}
public boolean supportsCoordinateSystem(int coord)
{
switch (coord)
{
case COORD_JACOBIAN:
return true;
default:
return false;
}
}
public BigInteger getQ()
{
return q;
}
public int getFieldSize()
{
return q.bitLength();
}
public ECFieldElement fromBigInteger(BigInteger x)
{
return new SecP521R1FieldElement(x);
}
protected ECPoint createRawPoint(ECFieldElement x, ECFieldElement y, boolean withCompression)
{
return new SecP521R1Point(this, x, y, withCompression);
}
protected ECPoint createRawPoint(ECFieldElement x, ECFieldElement y, ECFieldElement[] zs, boolean withCompression)
{
return new SecP521R1Point(this, x, y, zs, withCompression);
}
public ECPoint getInfinity()
{
return infinity;
}
}
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