Update copyright
diff --git a/programs/x509/cert_write.c b/programs/x509/cert_write.c
index 938f293..10ff2fc 100644
--- a/programs/x509/cert_write.c
+++ b/programs/x509/cert_write.c
@@ -1,7 +1,7 @@
 /*
  *  Certificate generation and signing
  *
- *  Copyright (C) 2006-2013, Brainspark B.V.
+ *  Copyright (C) 2006-2013, ARM Limited, All Rights Reserved
  *
  *  This file is part of mbed TLS (http://www.polarssl.org)
  *  Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>