Wednesday, 28 December 2011

Captcha

What is a captcha? Is a tool to avoid automatic spam on forum, comment, or whatever field on our sites. The captcha show an image containing a letter sequence that only a human being can understand.
Here an example:
It's possible to use Rebol to create the random captcha images, you can find all script and example in this page:
http://softinnov.org/rebol/captcha.shtml

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