Forum: Ruby on Rails How to check for a real person?

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55cfa29d393bc3cf2a1f2d373c85126e?d=identicon&s=25 sultan (Guest)
on 2009-03-19 16:51
(Received via mailing list)
Some sites have some checks to make sure that the data is being sent
by a real person.
Something like this:

See this code? [there is a image here with random letters and
numbers]
Re-type it here  [you have to enter exactly what is show above]

Any help will be appreciated.
3ff9c2544554b13c6c7877e76684751b?d=identicon&s=25 Lee Smith (smitjel)
on 2009-03-19 16:55
It's called Captcha

http://en.wikipedia.org/wiki/Captcha

Here's 10 examples (reCaptcha probably being the most common):

http://woork.blogspot.com/2009/02/10-free-captcha-...
55cfa29d393bc3cf2a1f2d373c85126e?d=identicon&s=25 sultan (Guest)
on 2009-03-19 20:02
(Received via mailing list)
Thanks Lee, this helps me a lot.

On Mar 19, 9:55 am, Lee Smith <rails-mailing-l...@andreas-s.net>
3ff9c2544554b13c6c7877e76684751b?d=identicon&s=25 Lee Smith (smitjel)
on 2009-03-19 22:09
-OR-

implement a negative captcha!  I kind of like this idea.

http://www.rorsecurity.info/journal/2008/4/4/webap...
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