[Rats] RATS Architecture IPR Questions

Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com> Fri, 13 November 2020 22:14 UTC

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From: Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com>
Date: Fri, 13 Nov 2020 17:14:12 -0500
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To: "Panwei (William)" <william.panwei@huawei.com>, rats@ietf.org
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Subject: [Rats] RATS Architecture IPR Questions
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Hello Panwei,

I hope you are well!

I am reviewing the IPR and way forward for the RATS Architecture document
and have a few questions for you.

1. I see the IPR was filed in China, was it filed elsewhere?
2. What version of the document was this filed against?  If it's the
current, then I have 2 additional questions.
3. Section 6: Since it is common in computing to combine roles and have
them be performed by the same part of the infrastructure, are there
specific role combinations that were filed in the patent?
4. Section 4.3: discusses the types of environments for attestations.  I
see both of the models discussed in a textbook published in 2005 (full
reference below), so I am not sure if this is what Huawei has filed?
Attestations that are local are common for TCG work and they had talked
about the idea of remote attestations with the verifier and attester being
separate entities or systems going way back in time.

Please see chapters 11 & 12 of *Trusted Computing Platforms: Design and
Applications*. Smith, Sean. Springer (publisher). 2005.

The TCG likely has discussed these models prior to the book referenced as
well, but research may be needed.

Clarification would be much appreciated for the WG to decide how to move
forward.

-- 

Best regards,
Kathleen