RE: [PHP] Going from simple to super CAPTCHA

I've been reading along, very informative :) I found Osama within 20 seconds and as someone posted already, looking for his head wouldn't be much of a task for a computer. Has anyone tried cracking/hacking what Microsoft has done with the animal pictures? That seems rather easy for even preschoolers, but a human non the less. They have many people working on this exact subject, and being paid I'm sure more than what its worth, but is there even a discussion if they have the answer? Other than the completely blind, anyone can tell what a cat is, and they could even take it further by added a bark or meow or something similar. Can a computer tell the difference between a bark and a meow? Each animal has its unique vocal tones and cry signature... just as a human (who's not impersonating, which as long as its not a picture of the mocking bird.......), does this help at all? Instead of relying on our own known dictionary and numbers.... Everyone knows about animals...... My 0.02 Jake > -----Original Message----- > From: tedd [mailto:tedd@sperling.com] > Sent: Tuesday, June 12, 2007 10:27 PM > To: Robert Cummings; Tijnema > Cc: tedd; Stut; Jim Lucas; php-general@lists.php.net > Subject: Re: [PHP] Going from simple to super CAPTCHA > > At 12:29 PM -0400 6/12/07, Robert Cummings 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. > > I was wondering when someone would suggest "Where's Waldo?" > > Cheers, > > tedd > -- > ------- > http://sperling.com > http://ancientstones.com > http://earthstones.com > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.472 / Virus Database: 269.8.14/845 - Release > Date: 6/12/2007 6:39 AM > > No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.472 / Virus Database: 269.8.14/845 - Release Date: 6/12/2007 6:39 AM