Re: image digit to check password
| From: | Richard Lynch | Date: | Wed, 21 Mar 2007 00:20:47 +0000 |
| Subject: | Re: image digit to check password | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-250959@lists.php.net to get a copy of this message | ||
On Tue, March 20, 2007 11:52 am, Alain Roger wrote:
> There is a trend on internet that when you want to change your
> password, you
> need to type :
> 1. the former password.
> 2. the new one
> 3. a 2nd time the new one to confirm that no mistake has been done on
> step
> 2.
>
> however, several website also propose an additional security to avoid
> hacking/brute force, they display a 4 digit image with a "random"
> string
> including number and letters... something like A3P23.
> if user do not respect case and string, password is not changed.
>
> I would like to know how such system works and if a tutorial exist
> about
> that ?
Search for the term "CAPTCHA" in Google.
Add in PHP to get just PHP solutions.
You will find LOTS.
--
Some people have a "gift" link here.
Know what I want?
I want you to buy a CD from some starving artist.
http://cdbaby.com/browse/from/lynch
Yeah, I get a buck. So?