Do you plan to support Secure Mime (S/Mime) in the future ?

I'm looking for a solution to send S/Mime email from my Drupal server to some email adress. Do you have plan to add this kind of support in the near future ? Or guideline you can give me how to achieve this.

Perhaps I could make a new module for that or it could be cool to add this as an option in MimeMail
http://php.net/manual/fr/function.openssl-pkcs7-encrypt.php seems the way to encrypt in S/Mime