diff --git a/md5-compat.c b/md5-compat.c
new file mode 100644
index 0000000000000000000000000000000000000000..a27f844dda9268a2426affe224739b28b0eafd83
--- /dev/null
+++ b/md5-compat.c
@@ -0,0 +1,46 @@
+/* md5-compat.c
+ *
+ * The md5 hash function, RFC 1321-style interface.
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2001 Niels M�ller
+ *  
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ * 
+ * The nettle library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the nettle library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#include "md5-compat.h"
+
+void
+MD5Init(MD5_CTX *ctx)
+{
+  md5_init(ctx);
+}
+
+void
+MD5Update(MD5_CTX *ctx, const unsigned char *data, unsigned int length)
+{
+  md5_update(ctx, length, data);
+}
+
+void
+MD5Final(unsigned char *out, MD5_CTX *ctx)
+{
+  md5_final(ctx);
+  md5_digest(ctx, MD5_DIGEST_SIZE, out);
+  md5_init(ctx);
+}
diff --git a/md5-compat.h b/md5-compat.h
new file mode 100644
index 0000000000000000000000000000000000000000..bb2e768edc519a116a1897ac48a3b06d8ad99948
--- /dev/null
+++ b/md5-compat.h
@@ -0,0 +1,37 @@
+/* md5-compat.h
+ *
+ * The md5 hash function, RFC 1321-style interface.
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2001 Niels M�ller
+ *  
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ * 
+ * The nettle library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the nettle library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#ifndef NETTLE_MD5_COMPAT_H_INCLUDED
+#define NETTLE_MD5_COMPAT_H_INCLUDED
+
+#include "md5.h"
+
+typedef struct md5_ctx MD5_CTX;
+
+void MD5Init(MD5_CTX *ctx);
+void MD5Update(MD5_CTX *ctx, const unsigned char *data, unsigned int length);
+void MD5Final(unsigned char *out, MD5_CTX *ctx);
+
+#endif /* NETTLE_MD5_COMPAT_H_INCLUDED */