diff --git a/Pilz.Cryptography/IUniquieIDHost.cs b/Pilz.Cryptography/IUniquieIDHost.cs
new file mode 100644
index 0000000..d391edb
--- /dev/null
+++ b/Pilz.Cryptography/IUniquieIDHost.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Pilz.Cryptography
+{
+    /// <summary>
+    /// Can be implemented on objects that provides an UniquieID.
+    /// </summary>
+    public interface IUniquieIDHost
+    {
+        UniquieID ID { get; }
+    }
+}