[jcifs] JCIFS / NTLMv2 support

David Martí david.marti.moya at hp.com
Thu Oct 29 04:01:30 MDT 2009

We are providing a solution for our scanners by means of it the user can scan
files which will be sent to a preconfigured network folder. We are using JCIFS
v1.2.9 to manage this digital send capability.

Right now a customer is requiring NTLMv2 authentication for connections in this
solution and after reading a lot we are confused about whether our version of
JCIFS supports or not. 

We see explicitly support for NTLMv2 since version 1.3.0 of JCIFS in your notes
and also in the faq, but our experience on testing our current version of JICFS
(v1.2.9) is that it seems to work at client side:

- We have a folder server with value "5" at the registry key
lmCompatibiltyLevel, which is supposed to only accept NTLMv2 authentication.
- When we set jcifs.smb.lmCompatibility to 3 the communication is done without
any problem.

Taking this into account could we think there is a complete NTLMv2
authentication in this sceneario - and not neeed to migrate the solution to use
JCIFS v1.3.0+?

Thanks in advance,

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