[Israel.pm] GD::SecurityImage vs other captcha generators?

Shlomi Fish shlomif at iglu.org.il
Wed Feb 28 12:47:06 PST 2007

On Sunday 25 February 2007, Sagiv Barhoom wrote:
> hi all
> I want to use captcha (to ensure that a human is making the request)
> can anyone refer me to a compression of captcha thchnologies (I could not
> find one)?
> did any one use GD::SecurityImage ? I am not sure  if it is a good enough
> for my needs.

I did not have any experience with GD::SecurityImage. Instead I implemented my 
own Captcha logic in this web application of mine:


To see the changes, run the command:

svn diff -r 1724:1725 $URL

with the URL I gave.

Note that this is a simple textual captcha, but it was enough to completely 
eliminate the spam postings to the IGLU Jobs database ( 
http://www.iglu.org.il/jobs/ ) so far. Image captchas are a huge 
accessibility problem for sight-impaired people.

For other ways to battle form spam see:



	Shlomi Fish

Shlomi Fish      shlomif at iglu.org.il
Homepage:        http://www.shlomifish.org/

Chuck Norris wrote a complete Perl 6 implementation in a day but then
destroyed all evidence with his bare hands, so no one will know his secrets.

More information about the Perl mailing list