Re: Simple CAPTCHA?

[PA <petite.abeille@...>]

On Aug 19, 2007, at 22:25, Mike Pall wrote:

> PA wrote:
> > Anyone has a suggestion for a simple (simplistic?) CAPTCHA mechanism?
>
> [ ] Check this box if you are human
> Don't insert anything in this field: [        ]
>
> It helps to make the internal names of the input fields random
> with some (slow) time variation. Should work well enough unless
> you're designing Yahoo's account creation page. Don't raise the
> barrier higher than you need to -- diversity helps here.

All things considered, I will go with that simple approach, instead of 
a CAPTCHA proper. In other words, a combination of randomized 
identifiers and honeypot fields.

Here is a more extensive description of that technic:

"Stopping spambots with hashes and honeypots"
-- Ned Batchelder, 21 January 2007
http://www.nedbatchelder.com/text/stopbots.html

Cheers,

PA.