Re: Going from simple to super CAPTCHA
| From: | Robert Cummings | Date: | Tue, 12 Jun 2007 13:02:15 +0000 |
| Subject: | Re: Going from simple to super CAPTCHA | ||
| References: | 1 2 3 4 5 6 7 8 9 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-256695@lists.php.net to get a copy of this message | ||
On Tue, 2007-06-12 at 07:25 -0400, tedd wrote:
> At 6:22 PM +0200 6/11/07, Tijnema wrote:
> >Server builds up a database of pictures, client does the same with MD5
> >check, and problem solved...:)
> >
> >Tijnema
>
> Tijnema:
>
> Not exactly, I don't think you could MD5 this:
>
> http://sperling.com/examples/dot-captcha/
>
> To make variations of the theme. I can place any type of picture, any
> number of pictures, anywhere and ask the user to click on one (i.e.,
> click on the apple) -- there's nothing to MD5, is there?
Yeah, but a bot isn't going to click on it.. it's going to go "oh look,
a form... POST!".
Cheers,
Rob.
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