<html> <head><title>dkim_alg_t</title></head> <body> <!-- $Id: dkim_alg_t.html,v 1.2 2010/07/24 04:52:15 cm-msk Exp $ --> <h1>dkim_alg_t</h1> <p align="right"><a href="index.html">[back to index]</a></p> <table border="0" cellspacing=4 cellpadding=4> <!----------- Description ----------> <tr><th valign="top" align=left>DESCRIPTION</th><td> <table border="1" cellspacing=1 cellpadding=4> <tr align="left" valign=top> <th width="80">Purpose</th> <td>A <tt>dkim_alg_t</tt> is a value from an enumerated list of the possible message signing algorithms available. It is passed as a parameter to <a href="dkim_sign.html"><tt>dkim_sign()</tt></a> when selecting a signing algorithm to be used to sign a message. It need not be passed to <a href="dkim_verify.html"><tt>dkim_verify()</tt></a> as that function will determine the signing algorithm for verification based on the signature on an arriving message.</td> </tr> <tr align="left" valign=top> <th width="80">Possible Values</th> <td> <ul> <li> <tt>DKIM_SIGN_RSASHA1</tt> -- use an RSA-signed SHA1 hash of the message's headers and body <li> <tt>DKIM_SIGN_RSASHA256</tt> -- use an RSA-signed SHA256 hash of the message's headers and body </ul> </td> </tr> </table> <!----------- Notes ----------> <tr> <th valign="top" align=left>NOTES</th> <td> <ul> <li><tt>DKIM_SIGN_RSASHA256</tt> is only available if the <b>OpenSSL</b> available at compile-time supported the SHA256 algorithm. </ul> </td> </tr> </table> <hr size="1"> <font size="-1"> Copyright (c) 2005-2007 Sendmail, Inc. and its suppliers. All rights reserved. <br> Copyright (c) 2009, 2010, The OpenDKIM Project. All rights reserved. <br> By using this file, you agree to the terms and conditions set forth in the respective licenses. </font> </body> </html>