+(defun mime-edit-sign-smime (beg end boundary)
+ (save-excursion
+ (save-restriction
+ (let* ((ret (progn
+ (narrow-to-region beg end)
+ (mime-edit-translate-region beg end boundary)))
+ (ctype (car ret))
+ (encoding (nth 1 ret))
+ (smime-boundary (concat "smime-sign-" boundary)))
+ (goto-char beg)
+ (insert (format "Content-Type: %s\n" ctype))
+ (if encoding
+ (insert (format "Content-Transfer-Encoding: %s\n" encoding))
+ )
+ (insert "\n")
+ (let (buffer-undo-list)
+ (goto-char (point-min))
+ (while (progn (end-of-line) (not (eobp)))
+ (insert "\r")
+ (forward-line 1))
+ (or (prog1 (smime-sign-region (point-min)(point-max))
+ (push nil buffer-undo-list)
+ (ignore-errors (undo)))
+ (throw 'mime-edit-error 'pgp-error)
+ ))
+ (goto-char beg)
+ (insert (format "--[[multipart/signed;
+ boundary=\"%s\"; micalg=sha1;
+ protocol=\"application/pkcs7-signature\"][7bit]]
+--%s
+" smime-boundary smime-boundary))
+ (goto-char (point-max))
+ (insert (format "\n--%s
+Content-Type: application/pkcs7-signature; name=\"smime.p7s\"
+Content-Transfer-Encoding: base64
+Content-Disposition: attachment; filename=\"smime.p7s\"
+Content-Description: S/MIME Cryptographic Signature
+
+" smime-boundary))
+ (insert-buffer-substring smime-output-buffer)
+ (goto-char (point-max))
+ (insert (format "\n--%s--\n" smime-boundary))
+ ))))
+
+(defun mime-edit-encrypt-smime (beg end boundary)
+ (save-excursion
+ (save-restriction
+ (let* ((ret (progn
+ (narrow-to-region beg end)
+ (mime-edit-translate-region beg end boundary)))
+ (ctype (car ret))
+ (encoding (nth 1 ret)))
+ (goto-char beg)
+ (insert (format "Content-Type: %s\n" ctype))
+ (if encoding
+ (insert (format "Content-Transfer-Encoding: %s\n" encoding))
+ )
+ (insert "\n")
+ (goto-char (point-min))
+ (while (progn (end-of-line) (not (eobp)))
+ (insert "\r")
+ (forward-line 1))
+ (or (smime-encrypt-region (point-min)(point-max))
+ (throw 'mime-edit-error 'pgp-error)
+ )
+ (delete-region (point-min)(point-max))
+ (insert "--[[application/pkcs7-mime; name=\"smime.p7m\"
+Content-Disposition: attachment; filename=\"smime.p7m\"
+Content-Description: S/MIME Encrypted Message][base64]]\n")
+ (insert-buffer-substring smime-output-buffer)
+ ))))
+