1 files changed, 67 insertions, 0 deletions
diff --git a/crypto/src/tls/ServerSrpParams.cs b/crypto/src/tls/ServerSrpParams.cs
new file mode 100644
index 000000000..9aca882f6
--- /dev/null
+++ b/crypto/src/tls/ServerSrpParams.cs
@@ -0,0 +1,67 @@
+using System;
+using System.IO;
+
+using Org.BouncyCastle.Math;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Tls
+{
+    public sealed class ServerSrpParams
+    {
+        private BigInteger m_N, m_g, m_B;
+        private byte[] m_s;
+
+        public ServerSrpParams(BigInteger N, BigInteger g, byte[] s, BigInteger B)
+        {
+            this.m_N = N;
+            this.m_g = g;
+            this.m_s = Arrays.Clone(s);
+            this.m_B = B;
+        }
+
+        public BigInteger B
+        {
+            get { return m_B; }
+        }
+
+        public BigInteger G
+        {
+            get { return m_g; }
+        }
+
+        public BigInteger N
+        {
+            get { return m_N; }
+        }
+
+        public byte[] S
+        {
+            get { return m_s; }
+        }
+
+        /// <summary>Encode this <see cref="ServerSrpParams"/> to a <see cref="Stream"/>.</summary>
+        /// <param name="output">the <see cref="Stream"/> to encode to.</param>
+        /// <exception cref="IOException"/>
+        public void Encode(Stream output)
+        {
+            TlsSrpUtilities.WriteSrpParameter(m_N, output);
+            TlsSrpUtilities.WriteSrpParameter(m_g, output);
+            TlsUtilities.WriteOpaque8(m_s, output);
+            TlsSrpUtilities.WriteSrpParameter(m_B, output);
+        }
+
+        /// <summary>Parse a <see cref="ServerSrpParams"/> from a <see cref="Stream"/>.</summary>
+        /// <param name="input">the <see cref="Stream"/> to parse from.</param>
+        /// <returns>a <see cref="ServerSrpParams"/> object.</returns>
+        /// <exception cref="IOException"/>
+        public static ServerSrpParams Parse(Stream input)
+        {
+            BigInteger N = TlsSrpUtilities.ReadSrpParameter(input);
+            BigInteger g = TlsSrpUtilities.ReadSrpParameter(input);
+            byte[] s = TlsUtilities.ReadOpaque8(input, 1);
+            BigInteger B = TlsSrpUtilities.ReadSrpParameter(input);
+
+            return new ServerSrpParams(N, g, s, B);
+        }
+    }
+}