Re: Going from simple to super CAPTCHA
| From: | Robert Cummings | Date: | Tue, 12 Jun 2007 18:06:34 +0000 |
| Subject: | Re: Going from simple to super CAPTCHA | ||
| References: | 1 2 3 4 5 6 7 8 9 10 11 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-256742@lists.php.net to get a copy of this message | ||
On Tue, 2007-06-12 at 19:34 +0200, Tijnema wrote:
> On 6/12/07, Robert Cummings <robert@interjinn.com> wrote:
> > On Tue, 2007-06-12 at 19:23 +0200, Tijnema wrote:
> > > On 6/12/07, Robert Cummings <robert@interjinn.com> wrote:
> > > > On Tue, 2007-06-12 at 18:19 +0200, Tijnema wrote:
> > > > > On 6/12/07, Robert Cummings <robert@interjinn.com> wrote:
> > > > > > On Tue, 2007-06-12 at 12:01 -0400, Robert Cummings wrote:
> > > > > > > On Tue, 2007-06-12 at 11:56 -0400, Robert Cummings wrote:
> > > > > > > >
> > > > > > > >
> > > > > > > > (10000 * 100) / 1000000 = .10 = 10% of the time
> > > > > > >
> > > > > > > Bad math alert... (10000 * 100) / 1000000 = 10 ;)
> > > > > > >
> > > > > > > Still the same answer though, was just mixing what I wrote with
> > > > > > > what I
> > > > > > > was thinking :)
> > > > > >
> > > > > > Bleh, what's wrong with me today... it's 1% not 10%. Still
> > > > > > within reason
> > > > > > for a spammer.
> > > > > >
> > > > > > *smacks head to clear the fog*
> > > > > >
> > > > >
> > > > > So, that means that you need to allow maximum of 10 attempts per few
> > > > > minutes, so that there will be 0,1% change ;)
> > > >
> > > > Using Ted's technique I've found the perfect CAPTCHA -- and it's
> > > > fun
> > > > too:
> > > >
> > > > http://shorl.com/nomojeryprafri
> > > >
> > > > Cheers,
> > > > Rob.
> > >
> > > Hmm, LOL
> > >
> > > Ok, found him ;) He's under the ground ... :P
> >
> > Heheh, nah, not this time... he's in one of the bumper cars :)
> >
> > Cheers,
> > Rob.
>
> I see ;)
>
> So you want to take this picture, change the position of bin laden
> randomly, and then just let every user before they post find bin laden
> ;)
Of course not... I posted it as a joke :) Besides, it would be weak
against pattern matching of Bin Laden's head or if different heads were
used then would be able to compare images to find where differences
occur... but I know you knew that already >:)
Cheers,
Rob.
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