Re: [Suit] draft-ietf-suit-firmware-encryption-18.txt

["Waltermire, David A. (Fed)" <[e-mail]>]

Hannes,

Many thanks to you and your co-authors for the hard work on this since July. The summary of changes is also appreciated.

We have time for this draft on the agenda. Please post slides ASAP to the datatracker.

Thanks,
Dave

________________________________
From: Suit <[e-mail]> on behalf of Hannes Tschofenig <[e-mail]>
Sent: Wednesday, November 1, 2023 8:04 AM
To: [e-mail] <[e-mail]>
Subject: [Suit] draft-ietf-suit-firmware-encryption-18.txt

Hi all,


the firmware encryption draft has seen a lot of updates since the last
IETF meeting. This is partially due to the WGLC issued by the chairs
(see
https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmailarchive.ietf.org%2Farch%2Fmsg%2Fsuit%2F8neAh2-H2cZ_Uzqs4FY1x9_42sM%2F&data=05%7C01%7Cdavid.waltermire%40nist.gov%7Cb5d1398d57c4426c71fa08dbdad2b7bf%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C638344370786975480%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=pcLrVa1XCN4VydZ9%2FI%2BHZyHazdnqB7oZKqVMQvF%2BDFM%3D&reserved=0)<https://mailarchive.ietf.org/arch/msg/suit/8neAh2-H2cZ_Uzqs4FY1x9_42sM/>
and the responses we have received afterwards. Thanks again to all
reviewers.


We submitted in total 5 (!) draft updates since July.


As expected, the diff is fairly large and hard to read:

https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fauthor-tools.ietf.org%2Fiddiff%3Furl1%3Ddraft-ietf-suit-firmware-encryption-13%26url2%3Ddraft-ietf-suit-firmware-encryption-18%26difftype%3D--html&data=05%7C01%7Cdavid.waltermire%40nist.gov%7Cb5d1398d57c4426c71fa08dbdad2b7bf%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C638344370786975480%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=4YgrjBW1biDEkk0PZ%2FecuMq8D6wDpRfLZSiWlyKTND4%3D&reserved=0<https://author-tools.ietf.org/iddiff?url1=draft-ietf-suit-firmware-encryption-13&url2=draft-ietf-suit-firmware-encryption-18&difftype=--html>


In summary, we made the following changes:


* The context information structure was changed based on the discussions
at the San Francisco IETF meeting. This required updates to all examples
(and consequently to the code).


* More examples have been added, which now use AES-CTR and AES-CBC in
Section 7 regarding the use of firmware updates on devices with flash
memory. There are now also complete examples with ES-DH in addition to
AES-KW. Big thanks to Ken for writing the AES-CTR/-CBC code to produce
the examples!


* Countless wording changes and editorial improvements.


The document is getting very close to completion (from the WG point of
view).


I would like to request a presentation slot to discuss the remaining
reviews/open issues (which can be found at
https://github.com/suit-wg/suit-firmware-encryption/issues).


Ciao
Hannes


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