[jcifs] Code to initialize NTML password

[Michael B Allen]

Hi Jehan,

I think the sambaNTpassword is probably just the first hash
computation of the password without the challenge. It is a kookie DES
computation. I think it's the computation in the lmHash method in the
examples at the end of this page:

  http://davenport.sourceforge.net/ntlm.html

You definitely don't need JCIFS to calculate that hash but the
equivalent code in JCIFS is jcifs.smb.NtlmPasswordAuthentication.E
(although it uses a goofy DES class that should have been removed from
JCIFS long ago since I think you can do the same thing with Cipher des
= Cipher.getInstance("DES/ECB/NoPadding");).

But I don't even know that that is what Samba is really putting in LDAP.

Mike

On Thu, Sep 16, 2010 at 12:08 PM, jehan procaccia
<jehan.procaccia at it-sudparis.eu> wrote:
>  hello,
>
> I already have a java Servlet that sets unix userpassword field in openldap.
> Now that I have added the samba.schema to my ldap server I want people to be
> able to enter/initiate their sambaNTpassword  ( I understood that there's no
> way to derive the NTpassword from the unix crypt password !?)
> So I am searching for a simple java code that computes a NTML (MD4 !?) hash
> from the clear text password string that my Servlet already gets from the
> users input field .
>
> any sample code available ?
>
> Thanks .
>



-- 
Michael B Allen
Java Active Directory Integration
http://www.ioplex.com/