1 files changed, 56 insertions, 0 deletions
diff --git a/crypto/src/util/collections/UnmodifiableSetProxy.cs b/crypto/src/util/collections/UnmodifiableSetProxy.cs
new file mode 100644
index 000000000..e119e2957
--- /dev/null
+++ b/crypto/src/util/collections/UnmodifiableSetProxy.cs
@@ -0,0 +1,56 @@
+using System;
+using System.Collections;
+
+namespace Org.BouncyCastle.Utilities.Collections
+{
+	public class UnmodifiableSetProxy
+		: UnmodifiableSet
+	{
+		private readonly ISet s;
+
+		public UnmodifiableSetProxy (ISet s)
+		{
+			this.s = s;
+		}
+
+		public override bool Contains(object o)
+		{
+			return s.Contains(o);
+		}
+
+		public override void CopyTo(Array array, int index)
+		{
+			s.CopyTo(array, index);
+		}
+
+		public override int Count
+		{
+			get { return s.Count; }
+		}
+
+		public override IEnumerator GetEnumerator()
+		{
+			return s.GetEnumerator();
+		}
+
+		public override bool IsEmpty
+		{
+			get { return s.IsEmpty; }
+		}
+
+		public override bool IsFixedSize
+		{
+			get { return s.IsFixedSize; }
+		}
+
+		public override bool IsSynchronized
+		{
+			get { return s.IsSynchronized; }
+		}
+
+		public override object SyncRoot
+		{
+			get { return s.SyncRoot; }
+		}
+	}
+}