Thanks for your reply Shawn, Nice article, but it seems this kind of anti-robot form validation is still the norm. And I would like to implement it.
I would like to know if there is free or cheap open source codes around so I can implement this the proper way. I would imagine that the image name would change all the time, and/or be in relation to some session ID, so that robots cannot match it with the related validation string. Any link to such technique is very welcome at this time. Thanks! :) -- Thierry ---> Shawn K. Hall, 2/13/05 22:23 : > The image itself is rather simple to generate in PHP or ASP.net, > validation of the form, however, can be a little trickier. You'll > need to have the code you pushed to the image also be validated > *before* and *after* form submission, to ensure that Joe's Robot > doesn't simply determine /one/ of the keys used to accurately pass > the form and then store that and change fields to those values for > future use. > > More information about this here: > http://everything2.com/index.pl?node_id=1399706 --------------------------------------------------------------------- Home : http://groups.yahoo.com/group/active-server-pages --------------------------------------------------------------------- Post : [email protected] Subscribe : [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] --------------------------------------------------------------------- Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/active-server-pages/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
