Re: [TLS] HRR delenda est (was Re: Published RFC 8446bis -05)

2022-10-26 Thread Ilari Liusvaara
On Tue, Oct 25, 2022 at 02:57:47PM +1100, Martin Thomson wrote: > > Removing HRR might be possible if we look at putting more stuff in > DNS or something along those lines, but that would require a bunch > of care and preparation. That's effort that - at least to me - > might be better spent els

Re: [TLS] HRR delenda est (was Re: Published RFC 8446bis -05)

2022-10-26 Thread Bas Westerbaan
> > OK, that's more than I expected, although I kind of wonder what > combinations are doing this. > It varies a bit over time, but today most were caused by a certain client sending a P-384 keyshare while also announcing support for P-256. On the other hand, most clients today send x25519 key s

Re: [TLS] HRR delenda est (was Re: Published RFC 8446bis -05)

2022-10-26 Thread Martin Thomson
On Thu, Oct 27, 2022, at 00:01, Ilari Liusvaara wrote: > Idea We're not short on ideas (your idea is not new). We're short on the willingness to implement and deploy them. ___ TLS mailing list TLS@ietf.org https://www.ietf.org/mailman/listinfo/tls

Re: [TLS] HRR delenda est (was Re: Published RFC 8446bis -05)

2022-10-26 Thread Martin Thomson
On Thu, Oct 27, 2022, at 09:23, Martin Thomson wrote: > On Thu, Oct 27, 2022, at 00:01, Ilari Liusvaara wrote: >> Idea > > We're not short on ideas (your idea is not new). We're short on the > willingness to implement and deploy them. I should apologize here. Ilari's idea is - I think - a relat

Re: [TLS] HRR delenda est (was Re: Published RFC 8446bis -05)

2022-10-26 Thread Stephen Farrell
Hiya, This is a "just wondering" type email... On 26/10/2022 23:32, Martin Thomson wrote: harder part: getting people interested in deploying a fix. If ECH+PQ-hybrid turns out to be problematic (size-wise) and PQ-hybrid by itself increases occurrences of HRR, and if ECH is generally desirabl