Re: Packet number encryption
Gorry Fairhurst <gorry@erg.abdn.ac.uk> Wed, 31 January 2018 09:57 UTC
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Date: Wed, 31 Jan 2018 09:52:32 +0000
From: Gorry Fairhurst <gorry@erg.abdn.ac.uk>
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Organization: University of Aberdeen
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To: Mirja Kühlewind <mirja.kuehlewind@tik.ee.ethz.ch>
CC: Martin Thomson <martin.thomson@gmail.com>, Brian Trammell <ietf@trammell.ch>, Eric Rescorla <ekr@rtfm.com>, QUIC WG <quic@ietf.org>, Christian Huitema <huitema@huitema.net>
Subject: Re: Packet number encryption
References: <CABkgnnVyo3MmWtVULiV=FJTnR528qfY8-OmKGWAs0bCvri-a_g@mail.gmail.com> <1F7FB3B8-A94C-4354-9944-FB09FB8DB68B@trammell.ch> <CABcZeBMbwdwyC9TxxHBLYaZKfNB-FG2wCGjqUZ_mNR-A1R47FA@mail.gmail.com> <9096e5ec-581e-875a-b1dd-bff0b05206fd@huitema.net> <CABkgnnWRQSAufwPss+qf=xAzCwRYeNNH8XLPm3yFaHxOb+ba4g@mail.gmail.com> <BF80500A-6277-45DC-8525-9C3FE138B76D@tik.ee.ethz.ch>
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+1 - Simply: This *is* complicated and seems to add little. Gorry On 31/01/2018, 07:44, Mirja Kühlewind wrote: > >> Am 31.01.2018 um 04:08 schrieb Martin Thomson<martin.thomson@gmail.com>: >> >> On Wed, Jan 31, 2018 at 8:00 AM, Christian Huitema<huitema@huitema.net> wrote: >>>> (1) An unprivileged on-path device that sees a packet from a flow that is >>>> migrated on purpose by an endpoint (i.e., due to connection migration or >>>> multipath) should not be able to associate that packet to the prior flow. >>> Yes. >> Agreed. This remains the primary target. I don't think that there >> are any negatives with this design with respect to this use case (or >> at least I found nothing in Brian's email on this point). > If that is the goal, I think the complexity of the proposed solution is not justified. Just select a new random offset when you migrate but increase the packet number monotonously otherwise to support manageability. > > I’m really concerned about complexity here. Even though this scheme is not very complex, any complexity is a potential source for future implementation errors which can also led to restrictions in what changes can be deploy with future versions. Making a protocol as simple as possible and thereby the spec as easy understandable as possible is also key for deployment. If we add complexity here without making it clear what the goal or additional benefit is of the complexity, I think that is just wrong. > > My 2c. > Mirja
- Packet number encryption Martin Thomson
- Re: Packet number encryption Ian Swett
- Re: Packet number encryption Brian Trammell (IETF)
- Re: Packet number encryption Eric Rescorla
- Re: Packet number encryption Christian Huitema
- Re: Packet number encryption Martin Thomson
- Re: Packet number encryption Mirja Kühlewind
- Re: Packet number encryption Gorry Fairhurst
- Re: Packet number encryption Brian Trammell (IETF)
- Re: Packet number encryption Eggert, Lars
- Re: Packet number encryption Brian Trammell (IETF)
- Re: Packet number encryption Martin Thomson
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Martin Thomson
- Re: Packet number encryption Roberto Peon
- Re: Packet number encryption Martin Thomson
- Re: Packet number encryption Ted Hardie
- Re: Packet number encryption Ted Hardie
- Re: Packet number encryption Christian Huitema
- Re: Packet number encryption Roberto Peon
- Re: Packet number encryption Martin Thomson
- Re: Packet number encryption Christian Huitema
- Re: Packet number encryption Jana Iyengar
- RE: Packet number encryption Roni Even (A)
- Re: Packet number encryption Brian Trammell (IETF)
- Re: Packet number encryption Roberto Peon
- Re: Packet number encryption Roberto Peon
- Re: Packet number encryption Martin Duke
- Re: Packet number encryption Kazuho Oku
- Re: Packet number encryption Christian Huitema
- Re: Packet number encryption Brian Trammell (IETF)
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Mirja Kühlewind
- Re: Packet number encryption Mirja Kühlewind
- Re: Packet number encryption Kazuho Oku
- Re: Packet number encryption Dmitri Tikhonov
- Re: Packet number encryption Brian Trammell (IETF)
- Re: Packet number encryption Fossati, Thomas (Nokia - GB/Cambridge, UK)
- Re: Packet number encryption Jana Iyengar
- RE: Packet number encryption Piotr Galecki
- Re: Re: Packet number encryption alexandre.ferrieux
- Re: Packet number encryption Patrick McManus
- Re: Packet number encryption Fossati, Thomas (Nokia - GB/Cambridge)
- Re: Packet number encryption Stephen Farrell
- Re: Packet number encryption Roberto Peon
- RE: Packet number encryption Piotr Galecki
- RE: Packet number encryption Roni Even (A)
- RE: Packet number encryption Lubashev, Igor
- RE: Packet number encryption Lubashev, Igor
- RE: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Christian Huitema
- RE: Packet number encryption Lubashev, Igor
- Re: Packet number encryption Stephen Farrell
- Re: Packet number encryption Fossati, Thomas (Nokia - GB/Cambridge)
- Re: Packet number encryption Fossati, Thomas (Nokia - GB/Cambridge)
- Re: Packet number encryption Stephen Farrell
- Re: Packet number encryption Willy Tarreau
- RE: Packet number encryption Praveen Balasubramanian
- Re: Packet number encryption Christian Huitema
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Brian Trammell (IETF)
- Re: Packet number encryption Brian Trammell (IETF)
- Re: Packet number encryption Brian Trammell (IETF)
- Reducing ossification through protocol design (wa… Brian Trammell (IETF)
- RE: Packet number encryption Praveen Balasubramanian
- Re: Packet number encryption Roberto Peon
- Re: Packet number encryption Roberto Peon
- Re: Packet number encryption Salz, Rich
- Re: Packet number encryption Jana Iyengar
- RE: Packet number encryption Roni Even
- Re: Packet number encryption Christian Huitema
- RE: Packet number encryption Roni Even (A)
- Re: Packet number encryption Roberto Peon
- Re: Reducing ossification through protocol design… Gorry Fairhurst
- Re: Packet number encryption Brian Trammell (IETF)
- Re: Packet number encryption Kazuho Oku
- RE: Packet number encryption Roni Even (A)
- Re: Reducing ossification through protocol design… Mirja Kühlewind
- Re: Reducing ossification through protocol design… Salz, Rich
- Re: Reducing ossification through protocol design… Mirja Kühlewind
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Mike Bishop
- RE: Reducing ossification through protocol design… Mike Bishop
- Re: Packet number encryption Jana Iyengar
- Re: Packet number encryption Jana Iyengar
- Re: Packet number encryption Martin Thomson
- Re: Packet number encryption Ted Hardie
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Praveen Balasubramanian
- Re: Packet number encryption Marten Seemann
- RE: Packet number encryption Roni Even (A)
- Re: Packet number encryption Marten Seemann
- Re: Packet number encryption Brian Trammell (IETF)
- Re: Packet number encryption Kazuho Oku
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Gorry Fairhurst
- Explicit measurability in the QUIC wire image (wa… Brian Trammell (IETF)
- Explicit measurability in the QUIC wire image (wa… Brian Trammell (IETF)
- RE: Explicit measurability in the QUIC wire image… Roni Even (A)
- Re: Explicit measurability in the QUIC wire image… Kazuho Oku
- Re: Explicit measurability in the QUIC wire image… Mikkel Fahnøe Jørgensen
- Re: Explicit measurability in the QUIC wire image… Mikkel Fahnøe Jørgensen
- Re: Explicit measurability in the QUIC wire image… Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Mirja Kühlewind
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Stephen Farrell
- Re: Explicit measurability in the QUIC wire image… Kazuho Oku
- RE: Packet number encryption Mike Bishop
- Re: Packet number encryption Jana Iyengar
- Re: Explicit measurability in the QUIC wire image… Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Eric Rescorla
- Re: Explicit measurability in the QUIC wire image… Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Ian Swett
- Re: Packet number encryption Christian Huitema
- RE: Packet number encryption Praveen Balasubramanian
- Re: Packet number encryption Martin Thomson
- RE: Packet number encryption Praveen Balasubramanian
- Re: Packet number encryption Christian Huitema
- RE: Packet number encryption Praveen Balasubramanian
- Re: Packet number encryption Christian Huitema
- Re: Packet number encryption Marten Seemann
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Explicit measurability in the QUIC wire image… Mikkel Fahnøe Jørgensen
- Re: Explicit measurability in the QUIC wire image… Kazuho Oku
- Re: Explicit measurability in the QUIC wire image… Martin Thomson
- Re: Explicit measurability in the QUIC wire image… Mikkel Fahnøe Jørgensen
- Re: Explicit measurability in the QUIC wire image… Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Mirja Kühlewind
- Re: Explicit measurability in the QUIC wire image… Mikkel Fahnøe Jørgensen
- Re: Explicit measurability in the QUIC wire image… Kazuho Oku
- Re: Explicit measurability in the QUIC wire image… Kazuho Oku
- Re: Packet number encryption Brian Trammell (IETF)
- RE: Packet number encryption Praveen Balasubramanian
- Re: Explicit measurability in the QUIC wire image… Christian Huitema
- Re: Explicit measurability in the QUIC wire image… Christian Huitema
- Re: Explicit measurability in the QUIC wire image… Kazuho Oku
- Re: Explicit measurability in the QUIC wire image… Kazuho Oku
- Re: Packet number encryption Victor Vasiliev
- Re: Packet number encryption Salz, Rich
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Mike Bishop
- Re: Packet number encryption Christian Huitema
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Mike Bishop
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Mikkel Fahnøe Jørgensen
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Mikkel Fahnøe Jørgensen
- RE: Packet number encryption Mikkel Fahnøe Jørgensen
- RE: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Salz, Rich
- Re: Packet number encryption Eric Rescorla
- Re: Packet number encryption Eric Rescorla
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Eric Rescorla
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Ian Swett
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Praveen Balasubramanian
- Re: Packet number encryption Salz, Rich
- Re: Packet number encryption Ian Swett
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Praveen Balasubramanian
- Re: Packet number encryption David Benjamin
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Deval, Manasi
- RE: Packet number encryption Deval, Manasi
- Re: Packet number encryption Victor Vasiliev
- RE: Packet number encryption Mikkel Fahnøe Jørgensen
- RE: Packet number encryption Praveen Balasubramanian
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: hardware offload (was: Packet number encrypti… Ian Swett
- Re: Packet number encryption Ian Swett
- Re: Packet number encryption Martin Thomson
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- RE: Packet number encryption Praveen Balasubramanian
- Re: Packet number encryption Salz, Rich
- RE: Packet number encryption Praveen Balasubramanian
- RE: hardware offload (was: Packet number encrypti… Praveen Balasubramanian
- Re: Packet number encryption Salz, Rich
- RE: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Victor Vasiliev
- Re: hardware offload (was: Packet number encrypti… Christian Huitema
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: hardware offload (was: Packet number encrypti… Eggert, Lars
- RE: Packet number encryption Praveen Balasubramanian
- RE: hardware offload (was: Packet number encrypti… Praveen Balasubramanian
- RE: Packet number encryption Praveen Balasubramanian
- RE: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Victor Vasiliev
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Kazuho Oku
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Mikkel Fahnøe Jørgensen
- Re: Packet number encryption Mikkel Fahnøe Jørgensen