duplicate md5 hash's
| From: | Guy Bowden | Date: | Thu, 09 Dec 2004 11:39:27 +0000 |
| Subject: | duplicate md5 hash's | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-203805@lists.php.net to get a copy of this message | ||
Hi,
I know this is highly unlikely... but I have this code:
$hash = md5(uniqid($message));
where message is a string that the user will input.
How likely is it that this hash might be repeated?
I'm using the hash as a primary key in a database - the user gets sent the hash as part of a url to retrieve the details of that database row.
(its a basic send to a friend e-card system).
Is there any way that the same hash could have been generated more than once?
Cheers,
Guy