Timeline for Practical non-image based CAPTCHA approaches?
Current License: CC BY-SA 2.5
10 events
| when toggle format | what | by | license | comment | |
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| Oct 25, 2010 at 11:28 | comment | added | KarstenF | Using colour might complicate things, because you would need to support different forms of colour-blindness. Otherwise this sounds pretty good. | |
| Apr 19, 2010 at 16:25 | history | edited | Peter Mortensen | CC BY-SA 2.5 |
Minor edit: grammar/spelling/case/punctuation/etc.
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| Jul 6, 2009 at 14:19 | comment | added | pbreitenbach | None of these ideas offer much more protection than "Type in this word: STACK". If that's all you need, then fine. But don't fool yourselves into thinking that these approaches offer more protection. | |
| Mar 5, 2009 at 7:24 | comment | added | Nivas | For "there can be different answers for the math question": allow all possible answers - all we need is to prove that the user is human. Not a math whiz kid. (Anyway, I am not for match approach completely - if google can, every body can solve them. by sending a request to google.com :-) | |
| Jan 21, 2009 at 7:45 | comment | added | Shalom Craimer | Excellent idea! Perhaps even by playing with changing foreground/background colors, you can get something that displays text easily visible to humans, but too random for bots? Of course this is harder on color-blind people :-( | |
| Dec 23, 2008 at 2:54 | comment | added | BobbyShaftoe | This would not be good for users with acalcula. There are scientists with this affliction so it isn't unreasonable that there could be programmers with it. | |
| Oct 29, 2008 at 1:48 | comment | added | alex | That example above 'ssdfatwerweajhcsadkoghvefdhrffghlfgdhowfgh' could be solved by a simple regex | |
| Sep 23, 2008 at 0:13 | comment | added | An̲̳̳drew | I like this one - for example "please enter the word spelled by the third underlined red letter, fourth bold green letter, and fifth non-bold blue letter". | |
| Aug 12, 2008 at 10:55 | history | edited | Jarod Elliott | CC BY-SA 2.5 |
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| Aug 12, 2008 at 5:11 | history | answered | Jarod Elliott | CC BY-SA 2.5 |