package org.bouncycastle.math.ec.custom.sec; import java.math.BigInteger; import org.bouncycastle.math.ec.ECCurve; import org.bouncycastle.math.ec.ECFieldElement; import org.bouncycastle.math.ec.ECPoint; import org.bouncycastle.util.encoders.Hex; public class SecP192R1Curve extends ECCurve.AbstractFp { public static final BigInteger q = new BigInteger(1, Hex.decode("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF")); private static final int SecP192R1_DEFAULT_COORDS = COORD_JACOBIAN; protected SecP192R1Point infinity; public SecP192R1Curve() { super(q); this.infinity = new SecP192R1Point(this, null, null); this.a = fromBigInteger(new BigInteger(1, Hex.decode("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC"))); this.b = fromBigInteger(new BigInteger(1, Hex.decode("64210519E59C80E70FA7E9AB72243049FEB8DEECC146B9B1"))); this.order = new BigInteger(1, Hex.decode("FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831")); this.cofactor = BigInteger.valueOf(1); this.coord = SecP192R1_DEFAULT_COORDS; } protected ECCurve cloneCurve() { return new SecP192R1Curve(); } 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 SecP192R1FieldElement(x); } protected ECPoint createRawPoint(ECFieldElement x, ECFieldElement y, boolean withCompression) { return new SecP192R1Point(this, x, y, withCompression); } protected ECPoint createRawPoint(ECFieldElement x, ECFieldElement y, ECFieldElement[] zs, boolean withCompression) { return new SecP192R1Point(this, x, y, zs, withCompression); } public ECPoint getInfinity() { return infinity; } }