Thanks, that fixed it!
Having to write to the SHA buffer in little endian order was not something
that occurred to me at all. I just checked the MLE Developer's Guide and it
only talks about endianness in the context of LCP.
Thanks again for all your help.
Cheers,
Sahil
On Wed, Feb 20, 2013 at 5:58 PM, Wei, Gang <gang....@intel.com> wrote:
> I have to take back what I said, and the Dell PowerEdge T620 platform
> should
> be ok. We were wrong on how to concatenate 4/8-byte integers into the
> composite for SHA1. IA arch always use little-endian byte order for
> integers, that means even tboot log print:
>
> TBOOT: proc_scrtm_status: 0x00000001
>
> The script should make:
> scrtm_status_ascii = "01 00 00 00" instead of "00 00 00 01".
>
> As well, The script should treat below integers in the same way:
>
> SinitMleData.MsegValid 8bytes
> SinitMleData.PolicyControl 4bytes
> (OsSinitData.Capabilities, 0) 4bytes
> SinitMleData.ProcessorSCRTMStatus 4bytes
>
> I can replicate PCR17 value after I made above change in my shell script.
>
> Thanks
> Jimmy
>
> Sahil Rihan wrote on 2013-02-19:
> > Hi Jimmy,
> >
> > Thanks for all your help on this.
> >
> > The platform I'm using is a Dell PowerEdge T620 with dual-socket Intel
> Xeon
> > E5-2650 (f/m/s: 06-2D-7) and BIOS version 1.2.6.
> >
> > Attached is the output from tboot.
> >
> > Out of curiosity, did you try with the values I posted earlier?
> >
> > Thanks,
> > Sahil
> >
> >
> > On Mon, Feb 18, 2013 at 12:09 AM, Wei, Gang <gang....@intel.com> wrote:
> >
> >
> > Hi, Sahil,
> >
> > The version 8 PCR 17 value could be replicated for some platform I
> can
> > access, so the MLE DG should be right. The issue might be with the
> > platform you are using. Can you tell the detailed model number of
> that
> > platform and attach a completed tboot log for further analysis?
> >
> > Jimmy
>
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