Re: [TLS] TLS 1.2 deprecation and RFC 7627

2023-04-01 Thread Eric Rescorla
On Sat, Apr 1, 2023 at 12:15 PM Dmitry Belyavsky wrote: > Dear Martin, > > On Sat, 1 Apr 2023, 19:36 Martin Thomson, wrote: > >> On Sat, Apr 1, 2023, at 20:28, Dmitry Belyavsky wrote: >> > Are the things like national-wide standards considered as new features >> > (until they don't pretend to be

Re: [TLS] TLS 1.2 deprecation and RFC 7627

2023-04-01 Thread Dmitry Belyavsky
Dear Martin, On Sat, 1 Apr 2023, 19:36 Martin Thomson, wrote: > On Sat, Apr 1, 2023, at 20:28, Dmitry Belyavsky wrote: > > Are the things like national-wide standards considered as new features > > (until they don't pretend to be Internet-wide standards)? > > I would not expect the IETF to be sp

Re: [TLS] TLS 1.2 deprecation and RFC 7627

2023-04-01 Thread Martin Thomson
On Sat, Apr 1, 2023, at 20:28, Dmitry Belyavsky wrote: > Are the things like national-wide standards considered as new features > (until they don't pretend to be Internet-wide standards)? I would not expect the IETF to be specifying national standards (that's an obvious contradiction anyway). It

Re: [TLS] TLS 1.2 deprecation and RFC 7627

2023-04-01 Thread Dmitry Belyavsky
Dear Rich, Are the things like national-wide standards considered as new features (until they don't pretend to be Internet-wide standards)? On Fri, Mar 31, 2023 at 2:11 AM Salz, Rich wrote: > > FWIW, my plan for the draft (which I hope to submit for adoption within a > month) is to include text

Re: [TLS] TLS 1.2 deprecation and RFC 7627

2023-03-30 Thread Salz, Rich
FWIW, my plan for the draft (which I hope to submit for adoption within a month) is to include text that says, basically, while no new features will be ADDED to TLS 1.2, the WG may decide to deprecate or remove things that have become security risks. I think it's better to keep specifics in sep

Re: [TLS] TLS 1.2 deprecation

2023-03-30 Thread Rob Sayre
On Thu, Mar 30, 2023 at 3:58 PM David Benjamin wrote: > post_handshake_auth was only in TLS 1.3 because some folks relied on an > existing (and terrible :-) ) corresponding mechanism in TLS 1.2: trigger a > renegotiation and request a client certificate in the new handshake. I > don't think it ma

Re: [TLS] TLS 1.2 deprecation

2023-03-30 Thread David Benjamin
post_handshake_auth was only in TLS 1.3 because some folks relied on an existing (and terrible :-) ) corresponding mechanism in TLS 1.2: trigger a renegotiation and request a client certificate in the new handshake. I don't think it makes sense to backport post_handshake_auth to TLS 1.2. Such a bac

Re: [TLS] TLS 1.2 deprecation

2023-03-30 Thread Rob Sayre
Hi, What I noticed is that something close to "post_handshake_auth" has been asked for in TLS 1.2. If you go look at the registry, which of course some people here know well, there are a bunch of them that are only defined for TLS 1.3. https://www.iana.org/assignments/tls-extensiontype-values/tl

Re: [TLS] TLS 1.2 deprecation

2023-03-29 Thread Salz, Rich
It was good. The only thing I would add is that I think client authentication is already much different in 1.3, and that new extensions such as ECH are already not being done for 1.2. Do you think discussion of client auth should be described in the draft? Yes, new work is not being done for 1.