* gnus-art.el (gnus-mime-display-part): Show MIME security button.
(gnus-insert-mime-security-button): New function.
* mm-decode.el (mm-possibly-verify-or-decrypt): Add security info.
* gnus-art.el (gnus-mime-display-part): Show MIME security button.
(gnus-insert-mime-security-button): New function.
* mm-decode.el (mm-possibly-verify-or-decrypt): Add security info.