107 lines
3.0 KiB
C#
107 lines
3.0 KiB
C#
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
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using System;
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using Org.BouncyCastle.Utilities.Encoders;
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namespace Org.BouncyCastle.Math.EC.Custom.Sec
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{
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internal class SecT571R1Curve
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: AbstractF2mCurve
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{
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private const int SecT571R1_DEFAULT_COORDS = COORD_LAMBDA_PROJECTIVE;
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protected readonly SecT571R1Point m_infinity;
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internal static readonly SecT571FieldElement SecT571R1_B = new SecT571FieldElement(
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new BigInteger(1, Hex.Decode("02F40E7E2221F295DE297117B7F3D62F5C6A97FFCB8CEFF1CD6BA8CE4A9A18AD84FFABBD8EFA59332BE7AD6756A66E294AFD185A78FF12AA520E4DE739BACA0C7FFEFF7F2955727A")));
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internal static readonly SecT571FieldElement SecT571R1_B_SQRT = (SecT571FieldElement)SecT571R1_B.Sqrt();
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public SecT571R1Curve()
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: base(571, 2, 5, 10)
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{
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this.m_infinity = new SecT571R1Point(this, null, null);
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this.m_a = FromBigInteger(BigInteger.One);
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this.m_b = SecT571R1_B;
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this.m_order = new BigInteger(1, Hex.Decode("03FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE661CE18FF55987308059B186823851EC7DD9CA1161DE93D5174D66E8382E9BB2FE84E47"));
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this.m_cofactor = BigInteger.Two;
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this.m_coord = SecT571R1_DEFAULT_COORDS;
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}
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protected override ECCurve CloneCurve()
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{
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return new SecT571R1Curve();
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}
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public override bool SupportsCoordinateSystem(int coord)
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{
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switch (coord)
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{
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case COORD_LAMBDA_PROJECTIVE:
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return true;
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default:
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return false;
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}
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}
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public override ECPoint Infinity
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{
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get { return m_infinity; }
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}
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public override int FieldSize
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{
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get { return 571; }
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}
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public override ECFieldElement FromBigInteger(BigInteger x)
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{
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return new SecT571FieldElement(x);
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}
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protected internal override ECPoint CreateRawPoint(ECFieldElement x, ECFieldElement y, bool withCompression)
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{
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return new SecT571R1Point(this, x, y, withCompression);
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}
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protected internal override ECPoint CreateRawPoint(ECFieldElement x, ECFieldElement y, ECFieldElement[] zs, bool withCompression)
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{
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return new SecT571R1Point(this, x, y, zs, withCompression);
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}
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public override bool IsKoblitz
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{
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get { return false; }
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}
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public virtual int M
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{
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get { return 571; }
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}
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public virtual bool IsTrinomial
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{
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get { return false; }
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}
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public virtual int K1
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{
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get { return 2; }
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}
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public virtual int K2
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{
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get { return 5; }
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}
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public virtual int K3
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{
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get { return 10; }
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}
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}
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}
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#endif
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