Generate Scrambled Text for Security

[Ben]

Hi,
I am looking to incorporate the scrambled text functionality (a graphic
etc with scrambled text appears and the user is required to type in what
he sees to prevent anonymous hits/spamming etc. - security feature
available in most credit card /banking websites). Any pointers to where
I can start?

Thanks,
Ben

 

[Mark Rae [MVP]]

Ben,

I am looking to incorporate the scrambled text functionality (a graphic
etc with scrambled text appears and the user is required to type in what
he sees to prevent anonymous hits/spamming etc. - security feature
available in most credit card /banking websites). Any pointers to where
I can start?

I assume you're referring to a CAPTCHA control like this:
http://www.markrae.net/net/mail.aspx

There are loads of examples of this:
http://www.google.co.uk/search?sour...z=1T4GGIH_en-GBGB220GB220&q="ASP.NET"+Captcha

All I did was pick the one I liked the best and then made a few small mods
for my own needs...

 

[Peter Duniho]

I am looking to incorporate the scrambled text functionality (a graphic
etc with scrambled text appears and the user is required to type in what
he sees to prevent anonymous hits/spamming etc. - security feature
available in most credit card /banking websites). Any pointers to where
I can start?

http://www.google.com/search?q=captcha

 

[rossum]

Hi,
I am looking to incorporate the scrambled text functionality (a graphic
etc with scrambled text appears and the user is required to type in what
he sees to prevent anonymous hits/spamming etc. - security feature
available in most credit card /banking websites). Any pointers to where
I can start?

Thanks,
Ben

Google "CAPTCHA": Completely Automated Public Turing test to tell
Computers and Humans Apart

http://www.captcha.net/

rossum

 

[Alun Harford]

Hi,
I am looking to incorporate the scrambled text functionality (a graphic
etc with scrambled text appears and the user is required to type in what
he sees to prevent anonymous hits/spamming etc. - security feature
available in most credit card /banking websites). Any pointers to where
I can start?

You're after a CAPTCHA.
Telling the difference between cats and cars is *so* much better than
the bad text ones though. Decent OCR will break them frequently (and a
spammer can compensate for the fact that 90% of the spam is stopped, by
sending 10x the spam), and I can't read a significant number of them.

Alun Harford

 

[Ben]

Thanks to all for your quick response. I will try it out and let you all
know.
Ben