[cifs-protocol] RE: CreateTrustedDomainEX blob incorrect

Richard Guthrie rguthrie at microsoft.com
Mon Nov 3 15:18:38 GMT 2008


I have attached an updated MS-LSAD document that contains a revised text for section 2.2.58.  The highlighted text is what we have added to make this structure more clear on how to parse it.  In order to successfully parse this structure you need to use the values in

1.      Outgoing authentication information size
2.      Incoming authentication information size

These values tell you the size of incoming and outgoing authentication information.  Outgoing buffer is always before incoming.  Once you have the buffer for outgoing and incoming authentication information the offsets for current and previous LSAPR_AUTH_INFORMATION will make sense.

Please review the documentation and let us know if you have further questions.

Richard Guthrie
Open Protocols Support Team
Support Escalation Engineer, US-CSS DSC PROTOCOL TEAM
Tel: +1 (469) 775-7794
E-mail: rguthrie at microsoft.com

-----Original Message-----
From: Andrew Bartlett [mailto:abartlet at samba.org]
Sent: Wednesday, October 22, 2008 9:42 PM
To: Richard Guthrie
Cc: pfif at tridgell.net; cifs-protocol at samba.org
Subject: Re: [cifs-protocol] RE: CreateTrustedDomainEX blob incorrect

On Wed, 2008-10-22 at 12:03 -0700, Richard Guthrie wrote:
> Andrew we have completed our investigation into
> LSAPR_TRUSTED_DOMAIN_AUTH_BLOB section 2.2.58 of MS-LSAD.  We have
> updated the documentation to reflect that previous authentication may
> not be present in the incoming AuthBlob data.  I have attached a
> document that contains the two updated sections with highlighted
> changes.

I'm sorry, I can't see how the changed PDF indicates this, nor how an implementation should tell if these are not included.


Andrew Bartlett

Andrew Bartlett
Authentication Developer, Samba Team           http://samba.org
Samba Developer, Red Hat Inc.
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