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Re: Unicode confusables and reordering characters considered harmful, a


From: Stefan Monnier
Subject: Re: Unicode confusables and reordering characters considered harmful, a simple solution
Date: Mon, 08 Nov 2021 16:59:10 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

> So I can only conclude that you don't understand the issues well
> enough to judge what is or isn't a good solution for them.

>From what I've read, I get the feeling that nobody truly
understands it, actually.

> Which isn't surprising: this stuff is very complex and takes years to
> wrap the head around it.

Also it requires understanding the human factor, and that is affected by
that human's past experience and habits, so I suspect that there isn't
a "one size fits all" solution.

Of course, once you start to look for "unnoticed attacks" in source
code, beside bidi and confusables, there's a host of other tricks you
can play.
See https://en.wikipedia.org/wiki/Underhanded_C_Contest for examples.


        Stefan




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