Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/mscorlib/system/security/isecurityencodable.cs

@@ -0,0 +1,32 @@
+// ==++==
+// 
+//   Copyright (c) Microsoft Corporation.  All rights reserved.
+// 
+// ==--==
+// ISecurityEncodable.cs
+// 
+// <OWNER>[....]</OWNER>
+//
+// All encodable security classes that support encoding need to
+// implement this interface
+//
+
+namespace System.Security  {
+    
+    using System;
+    using System.Security.Util;
+    
+    
+[System.Runtime.InteropServices.ComVisible(true)]
+    public interface ISecurityEncodable
+    {
+#if FEATURE_CAS_POLICY
+        SecurityElement ToXml();
+    
+        void FromXml( SecurityElement e );
+#endif // FEATURE_CAS_POLICY
+    }
+
+}
+
+