1 files changed, 66 insertions, 0 deletions
diff --git a/crypto/src/util/collections/UnmodifiableDictionaryProxy.cs b/crypto/src/util/collections/UnmodifiableDictionaryProxy.cs
new file mode 100644
index 000000000..0fca909a3
--- /dev/null
+++ b/crypto/src/util/collections/UnmodifiableDictionaryProxy.cs
@@ -0,0 +1,66 @@
+using System;
+using System.Collections;
+
+namespace Org.BouncyCastle.Utilities.Collections
+{
+	public class UnmodifiableDictionaryProxy
+		: UnmodifiableDictionary
+	{
+		private readonly IDictionary d;
+
+		public UnmodifiableDictionaryProxy(IDictionary d)
+		{
+			this.d = d;
+		}
+
+		public override bool Contains(object k)
+		{
+			return d.Contains(k);
+		}
+
+		public override void CopyTo(Array array, int index)
+		{
+			d.CopyTo(array, index);
+		}
+
+		public override int Count
+		{
+			get { return d.Count; }
+		}
+
+		public override IDictionaryEnumerator GetEnumerator()
+		{
+			return d.GetEnumerator();
+		}
+
+		public override bool IsFixedSize
+		{
+			get { return d.IsFixedSize; }
+		}
+
+		public override bool IsSynchronized
+		{
+			get { return d.IsSynchronized; }
+		}
+
+		public override object SyncRoot
+		{
+			get { return d.SyncRoot; }
+		}
+
+		public override ICollection Keys
+		{
+			get { return d.Keys; }
+		}
+
+		public override ICollection Values
+		{
+			get { return d.Values; }
+		}
+
+		protected override object GetValue(object k)
+		{
+			return d[k];
+		}
+	}
+}