RE: [PHP] image digit to check password
| From: | Jay Blanchard | Date: | Tue, 20 Mar 2007 16:55:07 +0000 |
| Subject: | RE: [PHP] image digit to check password | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-250932@lists.php.net to get a copy of this message | ||
[snip]
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 ?
[/snip]
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