diff --git a/src/ncc/Abstracts/AuthenticationSource.php b/src/ncc/Abstracts/AuthenticationSource.php
new file mode 100644
index 0000000..c5b29f8
--- /dev/null
+++ b/src/ncc/Abstracts/AuthenticationSource.php
@@ -0,0 +1,12 @@
+<?php
+
+    namespace ncc\Abstracts;
+
+    abstract class AuthenticationSource
+    {
+        const None = 'NONE';
+
+        const ServerProvided = 'SERVER_PROVIDED';
+
+        const UserProvided = 'USER_PROVIDED';
+    }
\ No newline at end of file