--- /dev/null
+/*
+---------------------------------------------------------------------------
+Copyright (c) 1998-2010, Brian Gladman, Worcester, UK. All rights reserved.
+
+The redistribution and use of this software (with or without changes)
+is allowed without the payment of fees or royalties provided that:
+
+ source code distributions include the above copyright notice, this
+ list of conditions and the following disclaimer;
+
+ binary distributions include the above copyright notice, this list
+ of conditions and the following disclaimer in their documentation.
+
+This software is provided 'as is' with no explicit or implied warranties
+in respect of its operation, including, but not limited to, correctness
+and fitness for purpose.
+---------------------------------------------------------------------------
+Issue Date: 20/12/2007
+
+This is an implementation of RFC2898, which specifies key derivation from
+a password and a salt value.
+*/
+
+#ifndef PWD2KEY_H
+#define PWD2KEY_H
+
+#if defined(__cplusplus)
+extern "C"
+{
+#endif
+
+void derive_key(
+ const unsigned char pwd[], /* the PASSWORD, and */
+ unsigned int pwd_len, /* its length */
+ const unsigned char salt[], /* the SALT and its */
+ unsigned int salt_len, /* length */
+ unsigned int iter, /* the number of iterations */
+ unsigned char key[], /* space for the output key */
+ unsigned int key_len); /* and its required length */
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif