Re: [Suit] draft-ietf-suit-firmware-encryption: HPKE for COSE
Hannes Tschofenig <Hannes.Tschofenig@arm.com> Tue, 17 August 2021 05:16 UTC
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From: Hannes Tschofenig <Hannes.Tschofenig@arm.com>
To: Benjamin Kaduk <kaduk@mit.edu>
CC: "suit@ietf.org" <suit@ietf.org>
Thread-Topic: [Suit] draft-ietf-suit-firmware-encryption: HPKE for COSE
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Date: Tue, 17 Aug 2021 05:16:15 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/suit/OskywgKp2jp1xGVDpGE0cEcisck>
Subject: Re: [Suit] draft-ietf-suit-firmware-encryption: HPKE for COSE
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FWIW I also agree that this is the right decision because HPKE isn't specific to firmware updates. -----Original Message----- From: Benjamin Kaduk <kaduk@mit.edu> Sent: Monday, August 16, 2021 6:44 PM To: Hannes Tschofenig <Hannes.Tschofenig@arm.com> Cc: suit@ietf.org Subject: Re: [Suit] draft-ietf-suit-firmware-encryption: HPKE for COSE On Mon, Aug 02, 2021 at 03:08:44PM +0000, Hannes Tschofenig wrote: > Hi all, > > Currently we have newly introduced the use of HPKE for COSE in the firmware encryption draft. > > HPKE could, however, be useful for other applications using COSE as well. > > So, the question is: Should the HPKE functionality be defined separately for use with COSE or be defined specifically for use with firmware encryption only? > > The answer to this question is a bit speculative because we have to guess whether HPKE will be useful for other applications using COSE. Currently, HPKE is used in various IETF protocols (MLS, TLS Encrypted ClientHello, Privacypass) but none of those applications utilize COSE. > > Thoughts? Chiming in super-late, but I agree with Russ about raising this with COSE. -Ben IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
- [Suit] draft-ietf-suit-firmware-encryption: HPKE … Hannes Tschofenig
- Re: [Suit] draft-ietf-suit-firmware-encryption: H… Russ Housley
- Re: [Suit] draft-ietf-suit-firmware-encryption: H… Benjamin Kaduk
- Re: [Suit] draft-ietf-suit-firmware-encryption: H… Hannes Tschofenig