Initial Commit

iTechSharp/srcbc/crypto/parameters/ECDomainParameters.cs

@@ -0,0 +1,116 @@
+using System;
+
+using Org.BouncyCastle.Math;
+using Org.BouncyCastle.Math.EC;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Crypto.Parameters
+{
+    public class ECDomainParameters
+    {
+        internal ECCurve     curve;
+        internal byte[]      seed;
+        internal ECPoint     g;
+        internal BigInteger  n;
+        internal BigInteger  h;
+
+		public ECDomainParameters(
+            ECCurve     curve,
+            ECPoint     g,
+            BigInteger  n)
+			: this(curve, g, n, BigInteger.One)
+        {
+        }
+
+        public ECDomainParameters(
+            ECCurve     curve,
+            ECPoint     g,
+            BigInteger  n,
+            BigInteger  h)
+			: this(curve, g, n, h, null)
+		{
+        }
+
+		public ECDomainParameters(
+            ECCurve     curve,
+            ECPoint     g,
+            BigInteger  n,
+            BigInteger  h,
+            byte[]      seed)
+        {
+			if (curve == null)
+				throw new ArgumentNullException("curve");
+			if (g == null)
+				throw new ArgumentNullException("g");
+			if (n == null)
+				throw new ArgumentNullException("n");
+			if (h == null)
+				throw new ArgumentNullException("h");
+
+			this.curve = curve;
+            this.g = g;
+            this.n = n;
+            this.h = h;
+            this.seed = Arrays.Clone(seed);
+        }
+
+		public ECCurve Curve
+        {
+            get { return curve; }
+        }
+
+        public ECPoint G
+        {
+            get { return g; }
+        }
+
+        public BigInteger N
+        {
+            get { return n; }
+        }
+
+        public BigInteger H
+        {
+            get { return h; }
+        }
+
+        public byte[] GetSeed()
+        {
+			return Arrays.Clone(seed);
+        }
+
+		public override bool Equals(
+			object obj)
+        {
+			if (obj == this)
+				return true;
+
+			ECDomainParameters other = obj as ECDomainParameters;
+
+			if (other == null)
+				return false;
+
+			return Equals(other);
+        }
+
+		protected bool Equals(
+			ECDomainParameters other)
+		{
+			return curve.Equals(other.curve)
+				&&	g.Equals(other.g)
+				&&	n.Equals(other.n)
+				&&	h.Equals(other.h)
+				&&	Arrays.AreEqual(seed, other.seed);
+		}
+
+		public override int GetHashCode()
+        {
+            return curve.GetHashCode()
+				^	g.GetHashCode()
+				^	n.GetHashCode()
+				^	h.GetHashCode()
+				^	Arrays.GetHashCode(seed);
+        }
+    }
+
+}