1 files changed, 104 insertions, 0 deletions
diff --git a/Crypto/src/crypto/parameters/RsaPrivateCrtKeyParameters.cs b/Crypto/src/crypto/parameters/RsaPrivateCrtKeyParameters.cs
new file mode 100644
index 000000000..7bd8abd76
--- /dev/null
+++ b/Crypto/src/crypto/parameters/RsaPrivateCrtKeyParameters.cs
@@ -0,0 +1,104 @@
+using System;
+
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Math;
+
+namespace Org.BouncyCastle.Crypto.Parameters
+{
+    public class RsaPrivateCrtKeyParameters
+		: RsaKeyParameters
+    {
+        private readonly BigInteger e, p, q, dP, dQ, qInv;
+
+		public RsaPrivateCrtKeyParameters(
+            BigInteger	modulus,
+            BigInteger	publicExponent,
+            BigInteger	privateExponent,
+            BigInteger	p,
+            BigInteger	q,
+            BigInteger	dP,
+            BigInteger	dQ,
+            BigInteger	qInv)
+			: base(true, modulus, privateExponent)
+        {
+			ValidateValue(publicExponent, "publicExponent", "exponent");
+			ValidateValue(p, "p", "P value");
+			ValidateValue(q, "q", "Q value");
+			ValidateValue(dP, "dP", "DP value");
+			ValidateValue(dQ, "dQ", "DQ value");
+			ValidateValue(qInv, "qInv", "InverseQ value");
+
+			this.e = publicExponent;
+            this.p = p;
+            this.q = q;
+            this.dP = dP;
+            this.dQ = dQ;
+            this.qInv = qInv;
+        }
+
+		public BigInteger PublicExponent
+        {
+            get { return e; }
+		}
+
+		public BigInteger P
+		{
+			get { return p; }
+		}
+
+		public BigInteger Q
+		{
+			get { return q; }
+		}
+
+		public BigInteger DP
+		{
+			get { return dP; }
+		}
+
+		public BigInteger DQ
+		{
+			get { return dQ; }
+		}
+
+		public BigInteger QInv
+		{
+			get { return qInv; }
+		}
+
+		public override bool Equals(
+			object obj)
+		{
+			if (obj == this)
+				return true;
+
+			RsaPrivateCrtKeyParameters kp = obj as RsaPrivateCrtKeyParameters;
+
+			if (kp == null)
+				return false;
+
+			return kp.DP.Equals(dP)
+				&& kp.DQ.Equals(dQ)
+				&& kp.Exponent.Equals(this.Exponent)
+				&& kp.Modulus.Equals(this.Modulus)
+				&& kp.P.Equals(p)
+				&& kp.Q.Equals(q)
+				&& kp.PublicExponent.Equals(e)
+				&& kp.QInv.Equals(qInv);
+		}
+
+		public override int GetHashCode()
+		{
+			return DP.GetHashCode() ^ DQ.GetHashCode() ^ Exponent.GetHashCode() ^ Modulus.GetHashCode()
+				^ P.GetHashCode() ^ Q.GetHashCode() ^ PublicExponent.GetHashCode() ^ QInv.GetHashCode();
+		}
+
+		private static void ValidateValue(BigInteger x, string name, string desc)
+		{
+			if (x == null)
+				throw new ArgumentNullException(name);
+			if (x.SignValue <= 0)
+				throw new ArgumentException("Not a valid RSA " + desc, name);
+		}
+	}
+}