Re: using the fringe to indicate good signatures

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+ Tue,  8 Sep 2015 21:00:29 +0300 (EEST)\r
+From: Tomi Ollila <tomi.ollila@iki.fi>\r
+To: David Edmondson <dme@dme.org>,\r
+ Daniel Kahn Gillmor <dkg@fifthhorseman.net>, notmuch@notmuchmail.org\r
+Subject: Re: using the fringe to indicate good signatures\r
+In-Reply-To: <m2si6p8cev.fsf@heart-of-gold.hh.sledj.net>\r
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+Date: Tue, 08 Sep 2015 21:00:29 +0300\r
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+On Tue, Sep 08 2015, David Edmondson <dme@dme.org> wrote:\r
+\r
+> On Tue, Sep 08 2015, Daniel Kahn Gillmor <dkg@fifthhorseman.net> wrote:\r
+>>> More seriously, we could use the indentation space for a similar\r
+>>> indicator, which would allow us some room at an appropriate depth for\r
+>>> each message (but not each part (in the default configuration)).\r
+>>\r
+>> hm, but couldn't the indentation space be spoofed by a well-crafted\r
+>> message?  that is: a non-indented message will consume space up to (but\r
+>> not including) the fringe.  so a well-crafted message could be made to\r
+>> *look* like an indented message, including whatever is comparable to the\r
+>> chrome/UI elements we would use for an actual signed message.\r
+>\r
+> Yes, I guess that is possible at some level.\r
+>\r
+> The fringe is a bitmap - we could use the leftmost vertical line of it\r
+> for the outermost component, next line for the next component, ...\r
+>\r
+> Or perhaps use images:\r
+>    - all levels of the message at this line are "good",\r
+>    - some of the levels of the message at this line are "good".\r
+>\r
+> Or maybe display a QR code in the fringe, and you point your phone at it\r
+> to find out what is going on?\r
+\r
+QR-code does not fit into my 1-pixel-wide fringes, but barcode perhaps ;)\r
+\r
+>\r
+>> I think it is also acceptable to just punt at some level -- we can say\r
+>> "notmuch-emacs will indicate the outermost signed message part in the\r
+>> fringe; it will not indicate nested signed messages in the fringe".\r
+>> this is still an improvement from the status quo.\r
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