Posted by R. Rajesh Jeba Anbiah on 06/18/06 09:30

arclight wrote:
<snip>
> I've written an accessible alternative to the typical graphics based
> CAPTCHA, which will work in any web browser, including lynx, you can
> get it at http://system-x.info/?pageid=18&menutree=47

Having written couple of bots, I would say this is Ok, especially
when you don't have GD--but stilll very easy to hack:
1. The bot first see the question and it logs the question so that
the person who runs the bot will add the answer to it's (bot's) list
2. Next time bot sees the same question, and it answers from it's
list; otherwise go to step 1

For helping blind people, it is worth to add sound files as in
e-gold.com; the implementation is also easy as creating WAV files on
the fly is extremely easy with PHP.

--
<?php echo 'Just another PHP saint'; ?>
Email: rrjanbiah-at-Y!com Blog: http://rajeshanbiah.blogspot.com/

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