in reply to Image encryption?
I'd specifically recommend the Captcha::reCAPTCHA module which would give you the captcha functionality you're seeking as well as supporting a worthy project.
Therapy is expensive. Popping bubble wrap is cheap. You choose.
1. Keep it simple
2. Just remember to pull out 3 in the morning
3. A good puzzle will wake me up
Many. I like to torture myself
0. Socks just get in the way
Results (344 votes). Check out past polls.