Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-oldversions-deprecate-09.txt> (Deprecating TLSv1.0 and TLSv1.1) to Best Current Practice
Stephen Farrell <stephen.farrell@cs.tcd.ie> Tue, 01 December 2020 00:50 UTC
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To: Peter Gutmann <pgut001@cs.auckland.ac.nz>, Keith Moore <moore@network-heretics.com>, "last-call@ietf.org" <last-call@ietf.org>
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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Date: Tue, 01 Dec 2020 00:48:29 +0000
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Subject: Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-oldversions-deprecate-09.txt> (Deprecating TLSv1.0 and TLSv1.1) to Best Current Practice
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Hiya, On 01/12/2020 00:29, Peter Gutmann wrote: > However I think your comment points out the overall problem: > > usage in web, mail and OSes > > This means there's no consideration at all of use in embedded/SCADA/whatever. I wouldn't agree with "no consideration" but guess we might agree about a lack of data. In particular, mail servers within enterprises were an explicit consideration but one where the consensus I think ended up pretty clear to be to deprecate despite at that time ongoing non-trivial usage of old versions. That said, if someone had words to suggest that might garner consensus, that would be good. I earlier said I'd try craft such, and will, but maybe better to start that with text from someone who works with these deliberately update-averse devices. (My guess as of now, is that would need to try describe cases where our "MUST NOT" is really an rfc6919 "MUST NOT (but we know you will)" rather than an attempt to characterise all the situations where the "MUST NOT" is clearly correct.) Cheers, S. PS: I think the earlier discussion referred to above answers Keith's point about mail servers, if one looks back over it. (That's from memory though, me not actually having gone back and looked over it again... yet;-)
- [TLS] Last Call: <draft-ietf-tls-oldversions-depr… The IESG
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… tom petch
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Stephen Farrell
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… tom petch
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Stephen Farrell
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Sean Turner
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Stephen Farrell
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Keith Moore
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Eric Rescorla
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Keith Moore
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Eric Rescorla
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Gary Gapinski
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Keith Moore
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Eric Rescorla
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Keith Moore
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Eliot Lear
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Stephen Farrell
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Stephen Farrell
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Stephen Farrell
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Nick Lamb
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Martin Duke
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Peter Gutmann
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Peter Gutmann
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Keith Moore
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Stephen Farrell
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Viktor Dukhovni
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ben Smyth
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Peter Gutmann
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Keith Moore
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Salz, Rich
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Salz, Rich
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Peter Gutmann
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Eliot Lear
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Salz, Rich
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Olle E. Johansson
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… STARK, BARBARA H
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Blumenthal, Uri - 0553 - MITLL
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… STARK, BARBARA H
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Peter Gutmann
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Eliot Lear
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Peter Gutmann
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Eliot Lear
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Keith Moore
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Salz, Rich
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ackermann, Michael
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Salz, Rich
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ted Lemon
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ted Lemon
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… STARK, BARBARA H
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Bill Frantz
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ted Lemon
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Joe Abley
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ackermann, Michael
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Eliot Lear
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… STARK, BARBARA H
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ted Lemon
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ackermann, Michael
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Gary Gapinski
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Watson Ladd
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… STARK, BARBARA H
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… BRUNGARD, DEBORAH A
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ackermann, Michael
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Rob Sayre
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Stephen Farrell
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Rob Sayre
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ackermann, Michael
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Rob Sayre
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… BRUNGARD, DEBORAH A
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Stephen Farrell
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ackermann, Michael
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ackermann, Michael
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Andrew Campling
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ted Lemon
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… tom petch
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ted Lemon
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ackermann, Michael
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ted Lemon
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ackermann, Michael
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Nick Hilliard
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Ted Lemon
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Rob Sayre
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Nick Hilliard
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Christian de Larrinaga
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Kathleen Moriarty
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Kathleen Moriarty
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Kathleen Moriarty
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Peter Gutmann
- [TLS] Results of Last Call: <draft-ietf-tls-oldve… Benjamin Kaduk
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Stephen Farrell
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… tom petch
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Gary Gapinski
- Re: [TLS] Last Call: <draft-ietf-tls-oldversions-… Stephen Farrell
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… tom petch
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… Stephen Farrell
- Re: [TLS] [Last-Call] Last Call: <draft-ietf-tls-… tom petch