note 21908 added to function.crypt

Hi there. I have an aplication that sends an email using php. The body of this email is formed by 4 variables. I would like to know how to encript these variables before I email them and also I would like to know how the receiver of that email can decypher the message. Is this possible at all? thank you and congratulations for this forum -- http://www.php.net/manual/en/function.crypt.php http://master.php.net/manage/user-notes.php?action=edit+21908 http://master.php.net/manage/user-notes.php?action=delete+21908 http://master.php.net/manage/user-notes.php?action=reject+21908