using System; using Org.BouncyCastle.Utilities.Encoders; namespace Org.BouncyCastle.Math.EC.Custom.Sec { internal class SecT113R1Curve : AbstractF2mCurve { private const int SecT113R1_DEFAULT_COORDS = COORD_LAMBDA_PROJECTIVE; protected readonly SecT113R1Point m_infinity; public SecT113R1Curve() : base(113, 9, 0, 0) { this.m_infinity = new SecT113R1Point(this, null, null); this.m_a = FromBigInteger(new BigInteger(1, Hex.Decode("003088250CA6E7C7FE649CE85820F7"))); this.m_b = FromBigInteger(new BigInteger(1, Hex.Decode("00E8BEE4D3E2260744188BE0E9C723"))); this.m_order = new BigInteger(1, Hex.Decode("0100000000000000D9CCEC8A39E56F")); this.m_cofactor = BigInteger.Two; this.m_coord = SecT113R1_DEFAULT_COORDS; } protected override ECCurve CloneCurve() { return new SecT113R1Curve(); } 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 113; } } public override ECFieldElement FromBigInteger(BigInteger x) { return new SecT113FieldElement(x); } protected internal override ECPoint CreateRawPoint(ECFieldElement x, ECFieldElement y, bool withCompression) { return new SecT113R1Point(this, x, y, withCompression); } protected internal override ECPoint CreateRawPoint(ECFieldElement x, ECFieldElement y, ECFieldElement[] zs, bool withCompression) { return new SecT113R1Point(this, x, y, zs, withCompression); } public override bool IsKoblitz { get { return false; } } public virtual int M { get { return 113; } } public virtual bool IsTrinomial { get { return true; } } public virtual int K1 { get { return 9; } } public virtual int K2 { get { return 0; } } public virtual int K3 { get { return 0; } } } }