Re: [TLS] SSL 2 CLIENT-HELLO backwards compatibility compromise
Yuhong Bao <yuhongbao_386@hotmail.com> Thu, 12 February 2015 23:37 UTC
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From: Yuhong Bao <yuhongbao_386@hotmail.com>
To: Brian Smith <brian@briansmith.org>, Dave Garrett <davemgarrett@gmail.com>
Date: Thu, 12 Feb 2015 15:36:11 -0800
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Cc: Florian Weimer <fweimer@redhat.com>, "TLS@ietf.org tls@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] SSL 2 CLIENT-HELLO backwards compatibility compromise
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> Dave Garrett <davemgarrett@gmail.com> wrote: >> Option #0) Current draft >> v2 format MUST NOT be sent ever >> v2 format MUST NOT be used at all for TLS 1.3+ >> v2 format NOT RECOMMENDED to accept for TLS 1.0-1.2 > > I think this is fine. We should move on to more important issues. > >> Option #2) Restrict to TLS 1.0 >> v2 format MUST NOT be sent ever >> v2 format MUST NOT be used at all for TLS 1.1+ >> v2 format NOT RECOMMENDED to accept for TLS 1.0 > > How to negotiate TLS 1.0 and what is acceptable for TLS 1.0 is out of > scope for the TLS 1.3 specification. (More generally, what to do for > earlier versions is out of scope.) Maybe do it as a separate BCP draft eventually?
- [TLS] SSL 2 CLIENT-HELLO backwards compatibility … Dave Garrett
- Re: [TLS] SSL 2 CLIENT-HELLO backwards compatibil… Brian Smith
- Re: [TLS] SSL 2 CLIENT-HELLO backwards compatibil… Yuhong Bao
- Re: [TLS] SSL 2 CLIENT-HELLO backwards compatibil… Aaron Zauner