82 lines
2.5 KiB
C#
82 lines
2.5 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 SecP256R1Curve
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: AbstractFpCurve
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{
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public static readonly BigInteger q = new BigInteger(1,
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Hex.Decode("FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF"));
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private const int SecP256R1_DEFAULT_COORDS = COORD_JACOBIAN;
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protected readonly SecP256R1Point m_infinity;
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public SecP256R1Curve()
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: base(q)
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{
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this.m_infinity = new SecP256R1Point(this, null, null);
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this.m_a = FromBigInteger(new BigInteger(1,
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Hex.Decode("FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC")));
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this.m_b = FromBigInteger(new BigInteger(1,
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Hex.Decode("5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B")));
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this.m_order = new BigInteger(1, Hex.Decode("FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E84F3B9CAC2FC632551"));
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this.m_cofactor = BigInteger.One;
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this.m_coord = SecP256R1_DEFAULT_COORDS;
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}
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protected override ECCurve CloneCurve()
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{
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return new SecP256R1Curve();
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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_JACOBIAN:
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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 virtual BigInteger Q
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{
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get { return q; }
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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 q.BitLength; }
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}
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public override ECFieldElement FromBigInteger(BigInteger x)
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{
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return new SecP256R1FieldElement(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 SecP256R1Point(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 SecP256R1Point(this, x, y, zs, withCompression);
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}
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}
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}
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#endif
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