Re: [Trustedjava-support] jTSS startup

[Ronald T. <ron...@ia...>]

Hi Simon,

You are right, you need to complete the .ini files before you can use jTSS.

Select the components of your choice for log file and persistent storage 
and create the folders in the file system (with proper access rights for 
the user/root) you intend to use and fill in the paths in the ini files.
For TSP-TCS communications you can either choose local bindings (i.e. 
direct method calls) or SOAP bindings. For the later you need to install 
the system daemon before using it.
For local bindings (recommended for testing) you either need root 
privileges to access the TPM, or to allow access to /dev/tpm.

Please, also note that the test-suite uses the hardcoded owner password 
"opentc", encoded as UTF-16LE without terminating zero. Other tools 
than  jTpmtools might fail to use the correct encoding.

This is a basic jTSS code example on reading the TPM version.


        context_ = new TcTssContextFactory().newContextObject();

            context_.connect();

            TcTssVersion version = getRealTpmVersion();
            TcBlobData subCap = TcBlobData
                    .newUINT32(TcTssConstants.TSS_TPMCAP_PROP_MANUFACTURER);
            TcBlobData tpmMan = context_.getTpmObject().getCapability(
                    TcTssConstants.TSS_TPMCAP_PROPERTY, subCap);

            context_.closeContext();

The complete example source is in iaik.tc.tss.test.tsp.java.simple.

For a tutorial, you can also check out these slides:
http://www.iaik.tugraz.at/content/teaching/master_courses/trusted_computing/downloads/2009/L3_AK_IT_2009-TSS.pdf


hth,
Ronald

Simon Mittelberger wrote:
> Hi,
>
> I'm new to jTSS and would like to have some easy startup steps.
> I set up an ubuntu 9.04 on a lenovo t61.
> My TPM is working (tested with tpm-tools; I can execute takeownership 
> and read the public EK).
>
> I tried already to execute the run_test.sh mentioned in the readme file 
> which comes with the jTSS_0.4a.tar.bz2.
> It produces a lot of output, which I could not understand. I guess I 
> have problems in setting up the .ini files in the correct way.
>
> Can someone explain a few easy steps to get a java program to use the 
> jtss library and to read for example the TPM version? I tried to 
> understand the source of the above mentioned test, but failed.
>
> Many thanks,
>
> best regards
> Simon Mittelberger
>
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-- 
Dipl.-Ing. Ronald Tögl          phone +43 316/873-5502
Trusted Computing Labs          fax   +43 316/873-5520
IAIK                            ron...@ia...
Graz University of Technology   http://www.iaik.tugraz.at