Re: CAPTCHA in the news...FIGlet's?

[Nathan Andelin <nandelin@xxxxxxxxxxxx>]

> Guillermo Andrades
> suppose the end user has to select wich letter are show and
> select one from 28 in an radio group:

There are a couple advantages to figlets.  The fonts are just text 
streams.  So you can download the ones you want, and store each letter 
in a database table.  Google shows a few places you can download figlet 
fonts.

Then write a routine to generate random captcha "words" from your 
alphabet, and generate a figlet stream based on the generated word and 
your figlet font table, and enclose the stream in HTML <pre></pre> tags 
so they display properly in the browser.  And as you say, RPG would be 
well suited for that.

The downside to figlets are that they lack the "cool" factor you may be 
looking for, and they take up a comparatively large space on the screen, 
in comparison to image files.

All in all, they seem like a decent option.

Nathan.