Adding a CAPTCHA to your Oracle APEX application

Haven’t had the requirement to add one in my applications until now, but after reading Dan’s posting about integrating reCAPTCHA with Oracle SSO, I thought that shouldn’t be to hard to integrate into an Oracle Application Express (APEX) application too! A nice challenge for the evening ;-)

Update on 08-Nov-2011: This is now also available as an easy to use item type plug-in for Oracle APEX 4.0. Have a look at the Google reCaptcha plug-in at http://apex.oracle.com/plugins.

I know that there are some similar solutions out there on the OTN forum and on the unOfficial Wiki page, but the SVG solution isn’t very secure in my opinion and the other solution uses an unsupported non-public package of Oracle APEX. So how can we integrate the reCAPTCHA widget instead?

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