diff --git a/admin/misc.c b/admin/misc.c
new file mode 100644
index 000000000..9e85a61e3
--- /dev/null
+++ b/admin/misc.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden). 
+ * All rights reserved. 
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions 
+ * are met: 
+ *
+ * 1. Redistributions of source code must retain the above copyright 
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright 
+ *    notice, this list of conditions and the following disclaimer in the 
+ *    documentation and/or other materials provided with the distribution. 
+ *
+ * 3. All advertising materials mentioning features or use of this software 
+ *    must display the following acknowledgement: 
+ *      This product includes software developed by Kungliga Tekniska 
+ *      Högskolan and its contributors. 
+ *
+ * 4. Neither the name of the Institute nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+ * SUCH DAMAGE. 
+ */
+
+#include "admin_locl.h"
+
+RCSID("$Id$");
+
+static krb5_data master_key;
+static int master_key_set;
+
+void
+set_master_key(EncryptionKey key)
+{
+    krb5_error_code ret;
+    ret = hdb_process_master_key(context, key, &master_key);
+    if(ret)
+	krb5_err(context, 1, ret, "Error processing master key file");
+    des_set_random_generator_seed(key.keyvalue.data);
+    master_key_set = 1;
+}
+
+Key *
+unseal_key(Key *key)
+{
+    Key *new;
+
+    if(master_key_set){
+	new = hdb_unseal_key(key, master_key);
+    }else{
+	new = ALLOC(new);
+	copy_Key(key, new);
+    }
+    return new;
+}
+
+void
+seal_key(Key *key)
+{
+    if (master_key_set) {
+	hdb_seal_key (key, master_key);
+    }
+}