add license information
diff --git a/org.eclipse.osbp.authentication.ui/assets/license.txt b/org.eclipse.osbp.authentication.ui/assets/license.txt
new file mode 100644
index 0000000..cf862fb
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+++ b/org.eclipse.osbp.authentication.ui/assets/license.txt
@@ -0,0 +1,21 @@
+/**
+ *
+ * Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation
+ */
+
+The following pictures originate from the sources listed:
+
+
+Pictures from StockSnap/pixabay:
+--------------------------------
+
+locked.png
+unlocked.png
