VBulletin Password Encryption
Just in case if anyone is looking how the VB password encryption is done, it’s not like;
$hash=MD5($password)
the way that I thought at first, but it’s done in this way;
$hash=MD5(MD5($password)+$salt)
so that no identical encrypted strings are stored in the database.
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Posted August 27th, 2006 by mightyhitter under VBulletin
7 Responses to “VBulletin Password Encryption”
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February 10th, 2007 at 3:45 am
Hi,
How I will get the value for $salt variable.
Mohan
February 10th, 2007 at 4:05 am
It should be from the database itself.
January 26th, 2008 at 4:23 pm
I typed the following (the values for $password and $salt are correct)
$password = “A”; // <- i’ve tried this with capital and lower-case “a”
$salt = “EG-”; // <- same as above.
echo “” . MD5(MD5($password)+$salt) . ““;
What the database has and what my code prints out every time are different… are you sure that’s the correct schema for vBulletin? If so, what could I be doing wrong?
January 26th, 2008 at 4:24 pm
*Sorry, that bold part reads:
echo MD5(MD5($password)+$salt);
January 29th, 2008 at 4:46 pm
MD5(MD5($password)+$salt)
it should be:
MD5(MD5($password).$salt)
February 1st, 2008 at 5:41 am
How can I decrypt the VB password??
May 12th, 2008 at 10:48 am
Just trying to clear some things up for some people. You can’t really decrypt the md5 password, thats the whole point of md5 - it’s one way encryption.
To get the salt you need to look in the vb_user table. If you are in vBulletin you can call the variable with this: $vbulletin->userinfo[’salt’]