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[REBOL] Preventing Automated Website Registrations

From: tserpa:earthlink at: 8-May-2002 10:25

We run a sweepstakes on one of our websites. Recently, we have been hijacked by some hacks that run a program that automatically registers people for the sweeps. The lowly scum that does this is at Anyway, I know Yahoo and PayPal use a technology to prevent automated registrations. If you haven't seen it, go to the Yahoo registration page and scroll to the bottom. It's called "word verification". Basically it is just a distorted word embedded in an image. Apparently, humans can read the word but computers cannot decipher it. The word must be entered in a text box before the registration is accepted. The program (or some variant of it) that Yahoo uses can be found at the following site: The source is freely available. It is a Perl program that uses the Gimp to generate the images I thought that this would be perfect to implement in Rebol. I imagine /View could be used to generate the images, obviating the need for the Gimp. Also the program would be cross-platform. I would like to do this, but unfortunately, I don't have enough skill in programming Rebol. Can anyone help? Ted