CAPTCHA & Nettalk?

[Gregg Matteson]

Subject says it all. Anyone implemented CAPTCHA with a Web server app?

Care to share how?

Thanks for your time.

[David]

Gregg,

I am using Capesoft Draw and generating the Captcha images to be used for registration.

I have a worker thread that gererates random numbers and letters, uses Draw to create a png image and then add the image name and generated text into a memory table.  Every 24 hours the images and memory table are deleted and then recreated.

On the WebForm, I "Display" a random image and have an input field for the user.  The image text is saved to a session variable.  Using the validation embeds, I check the user input against the session variable.

If it has not already been sugested, I am going to post a feature request for a Captcha template.

[Gregg Matteson]

David,

I own Draw as well but never gave it a thought to use it for that. Very clever!

I just found a possible alternative:

http://www.archreality.com/jcap/  it's a javascript that creates the Captcha .

Thanks very much for your response.