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string-to-key in Windows Server 2003

daemon@ATHENA.MIT.EDU (Ben Cox)
Thu Jun 26 16:48:52 2003

From: Ben Cox <cox-work@djehuti.com>
To: kerberos@mit.edu
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Date: 26 Jun 2003 16:48:41 -0400
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We are attempting to authenticate against a Windows Server 2003 Active
Directory Server and getting a preauthentication failure (preauth is
enc-timestamp).  We're using a key that we generated from the password
and stored into a keytab; this works against a Win2K AD server but not
against a 2003 server.

Did the string-to-key algorithm change in Win 2003?  (Or does it use a
different mechanism for generating the salt?)

Any info (or pointers to info) on this would be appreciated.

-- Ben


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