Update copyright notice
diff --git a/library/entropy.c b/library/entropy.c
index 9fc11a7..68219f3 100644
--- a/library/entropy.c
+++ b/library/entropy.c
@@ -1,12 +1,9 @@
/*
* Entropy accumulator implementation
*
- * Copyright (C) 2006-2011, Brainspark B.V.
+ * Copyright (C) 2006-2011, ARM Limited, All Rights Reserved
*
- * This file is part of PolarSSL (http://www.polarssl.org)
- * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
- *
- * All rights reserved.
+ * This file is part of mbed TLS (https://www.polarssl.org)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by