6 files changed, 22 insertions, 6 deletions

diff --git a/lib/libmd/md4.h b/lib/libmd/md4.h
index b6e6ebab7e95b..c05c690f80e19 100644
--- a/lib/libmd/md4.h
+++ b/lib/libmd/md4.h
@@ -2,7 +2,10 @@
  * $FreeBSD$
  */
 
-/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
+/*-
+   SPDX-License-Identifier: RSA-MD
+
+   Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
    rights reserved.
 
    License to copy and use this software is granted provided that it
diff --git a/lib/libmd/md4c.c b/lib/libmd/md4c.c
index de1a7b4acb9cb..a30027b1fb458 100644
--- a/lib/libmd/md4c.c
+++ b/lib/libmd/md4c.c
@@ -4,7 +4,10 @@
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
-/* Copyright (C) 1990-2, RSA Data Security, Inc. All rights reserved.
+/*-
+   SPDX-License-Identifier: RSA-MD
+
+   Copyright (C) 1990-2, RSA Data Security, Inc. All rights reserved.
 
    License to copy and use this software is granted provided that it
    is identified as the "RSA Data Security, Inc. MD4 Message-Digest
diff --git a/lib/libmd/md5c.c b/lib/libmd/md5c.c
index 75b1e5eb1e8c2..a2c71b6a69604 100644
--- a/lib/libmd/md5c.c
+++ b/lib/libmd/md5c.c
@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: RSA-MD
+ *
  * MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm
  *
  * Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
diff --git a/lib/libmd/mdXhl.c b/lib/libmd/mdXhl.c
index 397c85bd5e2d0..40be65f52d3cf 100644
--- a/lib/libmd/mdXhl.c
+++ b/lib/libmd/mdXhl.c
@@ -1,4 +1,6 @@
-/* mdXhl.c
+/*- mdXhl.c
+ * SPDX-License-Identifier: Beerware
+ *
  * ----------------------------------------------------------------------------
  * "THE BEER-WARE LICENSE" (Revision 42):
  * <phk@FreeBSD.org> wrote this file.  As long as you retain this notice you
diff --git a/lib/libmd/shadriver.c b/lib/libmd/shadriver.c
index b643f964802a9..a0472f0163647 100644
--- a/lib/libmd/shadriver.c
+++ b/lib/libmd/shadriver.c
@@ -1,6 +1,9 @@
 /* SHADRIVER.C - test driver for SHA-1 (and SHA-2) */
 
-/* Copyright (C) 1990-2, RSA Data Security, Inc. Created 1990. All rights
+/*-
+ * SPDX-License-Identifier: RSA-MD
+ *
+ * Copyright (C) 1990-2, RSA Data Security, Inc. Created 1990. All rights
  * reserved.
  * 
  * RSA Data Security, Inc. makes no representations concerning either the
diff --git a/lib/libmd/skeindriver.c b/lib/libmd/skeindriver.c
index 5960457e40821..ee70ef7cd7dc5 100644
--- a/lib/libmd/skeindriver.c
+++ b/lib/libmd/skeindriver.c
@@ -1,6 +1,9 @@
 /* SKEINDRIVER.C - test driver for SKEIN */
 
-/* Copyright (C) 1990-2, RSA Data Security, Inc. Created 1990. All rights
+/*-
+ * SPDX-License-Identifier: RSA-MD
+ *
+ * Copyright (C) 1990-2, RSA Data Security, Inc. Created 1990. All rights
  * reserved.
  * 
  * RSA Data Security, Inc. makes no representations concerning either the