Re: [Trustedjava-support] jTssTddlVista.dll

[Raja <raj...@ho...>]

Hi Johannes, 
 
 Thanks again. I don't need the p/Invoke stuffs. I already have my own DLL that does that, 
 
 I converted jTSS java code to C#. I wrote my own DLL for tbs_submit_command, because code for jTssTddlVista.dll is not public. 
  With the C#-convert code and my own DLL, I can query TPM version, capabilities, PCR values etc..  and they all work. For some reason NVDefineSpace is the only call that fails. The return code I get is 1 on one machine and 34 (0x22) on another machine. This error code is not listed as any TPM related error code. 
 
 The reason I am after jTssTddlVista code is I want to see what it is doing that I am not.   Is it possible certain TPM commands must be run under SYSTEM account? I run my code as an admin but that does not help. I wonder if my code should be run under SYSTEM context (from a service). 
 
ThanksRaja
 
> Date: Thu, 11 Jun 2015 12:40:21 +0200
> From: joh...@ia...
> To: tru...@li...
> Subject: Re: [Trustedjava-support] jTssTddlVista.dll
> 
> Hello,
> 
> Am 10.06.2015 um 22:15 schrieb Raja:
> [...]
> > Hello,
> >
> >   I am looking for source code for jTssTddlVista.dll. Where can I find it?
> >
> > Thanks
> > Raja
> [...]
> 
> As far as I know the sources for jTssTddlVista.dll have never been 
> released publicly (for reasons I don't fully understand). Actually that 
> DLL is nothing more than a small JNI wrapper around Windows TBS.
> 
> If you are looking for a C# alternative (P/Invoke based), which does not 
> rely on external (non-system) DLLs, have a look at the 
> TPMBaseServices.cs class from "doTSS" [1].
> 
> ("doTSS" actually was a student project aiming to create a 
> proof-of-concept TPM stack for .NET)
> 
> Best,
> Johannes
> 
> [1] 
> https://github.com/deveck/doTSS/blob/master/tpm_lib/tpm_lowlvl/backends/win32/TPMBaseServices.cs
> -- 
> Johannes Winter, IAIK - Graz University of Technology       __
> Inffeldgasse 16a, 8010 Graz, Austria                  __  _|  |_
> Phone: +43 316 873 5578                              |  ||      |
> Fax: +43 316 873 5520                                |_    _||__|
> http://www.iaik.tugraz.at/                             |__| IAIK
> 
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