[TLS] Re: Question to draft-ietf-tls-esni 6.2.1.
Christopher Patton <cpatton@cloudflare.com> Wed, 12 March 2025 23:25 UTC
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From: Christopher Patton <cpatton@cloudflare.com>
Date: Wed, 12 Mar 2025 16:25:09 -0700
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To: 风扇 滑翔翼 <Fangliding@outlook.sg>
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Subject: [TLS] Re: Question to draft-ietf-tls-esni 6.2.1.
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You might be interested in the draft being discussed here (I believe this is on the agenda for next week as well): https://mailarchive.ietf.org/arch/msg/tls/dT5e5F1yWtFbs0dpESsWO-Cg0AM/ There's also this draft, which could be used to probe servers for ECH support: https://datatracker.ietf.org/doc/html/draft-ietf-tls-wkech-05 Best, Chris P. On Tue, Mar 11, 2025 at 3:30 AM 风扇 滑翔翼 <Fangliding@outlook.sg> wrote: > Due to the existence of GREASE ECH, for requests made by clients that have > implemented ECH but do not have a suitable ECH Config, the server always > fails to decrypt and can choose to send retry config. > Why not treat this an opportunity to upgrade Plaintext Hello to ECH(if > certificate verification succeed), but require the client to ignore it? > Will this lead to a possible vulnerability? > At present, the initial distribution of ECH Config can only be done > through DNS. Can't it uses methods similar to mentioned earlier to remind > clients of potential upgrades? > _______________________________________________ > TLS mailing list -- tls@ietf.org > To unsubscribe send an email to tls-leave@ietf.org >
- [TLS] Question to draft-ietf-tls-esni 6.2.1. 风扇 滑翔翼
- [TLS] Re: Question to draft-ietf-tls-esni 6.2.1. Christopher Patton
- [TLS] Re: Question to draft-ietf-tls-esni 6.2.1. Stephen Farrell