Security

[OldSmelly]

Hello,

On some website you have to key in a code from the screen in order to "proof" that your not a bot. Most of the time it's a picture of numbers and letters in some sort of pattern. I have no idea what's it called in english but I hope that you know what i mean. And if someone can help with some sample code how to do this ?

Thanks in advance

Hans

 

[BabyJeffy]

It's known as CAPTCHA ([!]C[/!]ompletely [!]A[/!]utomated [!]P[/!]ublic [!]T[/!]uring test to tell [!]C[/!]omputers and [!]H[/!]umans [!]A[/!]part). There are many different projects out there making these (as you have found)... some are free and some are not.

Point your browser at a few of these for some direction...

[ul][li]

http://www.captcha.net/

[/li]
[li]

http://drupal.org/project/captcha

[/li]
[li]

http://www.codeproject.com/aspnet/CaptchaImage.asp

(ASP.NET)[/li]
[li]

http://www.alagad.com/index.cfm/name-captcha

(Coldfusion)[/li]
[li]

http://captchas.net/

[/li][/ul]

Notes on accessibility when using CAPTCHA...
[ul][li]

http://www.w3.org/TR/2005/NOTE-turingtest-20051123/

[/li][/ul]

And of course... now you know the name you can hit Google and see what comes up

Cheers,
Jeff

[tt]Jeff's Page @ Code Couch

http://www.codecouch.com/jeff/

http://www.codecouch.com/jeff/blog/

[/tt]

What is Javascript? FAQ216-6094

 

[OldSmelly]

Thanks for the info.....

Going to look at these websites right away