# File MIME/types.rb, line 300

        def signature?

            case @content_type

                when "application/pgp-keys", "application/pgp",

                     "application/pgp-signature", "application/pkcs10",

                     "application/pkcs7-mime", "application/pkcs7-signature",

                     "text/vCard", "text/vcard"

                    true

            end

        end