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awk

03/17/04 8:01 PM

#34332 RE: RootOfTrust #34317

Ramsey2

"...I am still trying to understand if programmability of the TPM within the LaGrande/NGSCB architecture is an enhancement providing additional functionality, or if it would be redundant to LaGrande/NGSCB?..."


Redundant! The only benefit would be that encryption algorithms could be updated/reprogrammed.

NGSCB's secure execution environment idea is virtually identical to the E2100 Trust System. I wonder why!

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rachelelise

03/17/04 8:20 PM

#34338 RE: RootOfTrust #34317

ramsey2

I inquired about this on several occassions. The LT/NGSCB environment is like Embassy on steroids in that they can run applets and run many applets at the same time. However to the extent the TPM contians routines that run, programmability would allow for field updating. For other platforms which won't have LT/NGSCB, the merits of programmability would be far stronger I expect.

From what I can tell, Wave is simply promoting tPMs everywhere they can. I'm sure their goal is to get TPMs in everything and every type of platform. And the more heterogeneous the better. For the moment they are the ones who can support the diversity of platforms and I'm sure they will just work with new ones as they come into existence. I suspect that is one of their driving strategies.