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Assets/BestHTTP/SecureProtocol/math/ec/custom/sec/SecT233R1Curve.cs

@@ -0,0 +1,102 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+
+using System;
+
+using Org.BouncyCastle.Utilities.Encoders;
+
+namespace Org.BouncyCastle.Math.EC.Custom.Sec
+{
+    internal class SecT233R1Curve
+        : AbstractF2mCurve
+    {
+        private const int SecT233R1_DEFAULT_COORDS = COORD_LAMBDA_PROJECTIVE;
+
+        protected readonly SecT233R1Point m_infinity;
+
+        public SecT233R1Curve()
+            : base(233, 74, 0, 0)
+        {
+            this.m_infinity = new SecT233R1Point(this, null, null);
+
+            this.m_a = FromBigInteger(BigInteger.One);
+            this.m_b = FromBigInteger(new BigInteger(1, Hex.Decode("0066647EDE6C332C7F8C0923BB58213B333B20E9CE4281FE115F7D8F90AD")));
+            this.m_order = new BigInteger(1, Hex.Decode("01000000000000000000000000000013E974E72F8A6922031D2603CFE0D7"));
+            this.m_cofactor = BigInteger.Two;
+
+            this.m_coord = SecT233R1_DEFAULT_COORDS;
+        }
+
+        protected override ECCurve CloneCurve()
+        {
+            return new SecT233R1Curve();
+        }
+
+        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 233; }
+        }
+
+        public override ECFieldElement FromBigInteger(BigInteger x)
+        {
+            return new SecT233FieldElement(x);
+        }
+
+        protected internal override ECPoint CreateRawPoint(ECFieldElement x, ECFieldElement y, bool withCompression)
+        {
+            return new SecT233R1Point(this, x, y, withCompression);
+        }
+
+        protected internal override ECPoint CreateRawPoint(ECFieldElement x, ECFieldElement y, ECFieldElement[] zs, bool withCompression)
+        {
+            return new SecT233R1Point(this, x, y, zs, withCompression);
+        }
+
+        public override bool IsKoblitz
+        {
+            get { return false; }
+        }
+
+        public virtual int M
+        {
+            get { return 233; }
+        }
+
+        public virtual bool IsTrinomial
+        {
+            get { return true; }
+        }
+
+        public virtual int K1
+        {
+            get { return 74; }
+        }
+
+        public virtual int K2
+        {
+            get { return 0; }
+        }
+
+        public virtual int K3
+        {
+            get { return 0; }
+        }
+    }
+}
+
+#endif