Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps
Benjamin Kaduk <bkaduk@akamai.com> Thu, 18 October 2018 20:13 UTC
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Date: Thu, 18 Oct 2018 15:12:58 -0500
From: Benjamin Kaduk <bkaduk@akamai.com>
To: Eric Rescorla <ekr@rtfm.com>
Cc: "<tls@ietf.org>" <tls@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/JVh6xImP9cYlz4-4As7Okncd1VA>
Subject: Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps
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On Wed, Oct 17, 2018 at 02:48:47PM -0700, Eric Rescorla wrote: > On Wed, Oct 17, 2018 at 7:40 AM Benjamin Kaduk <bkaduk@akamai.com> wrote: > > > On Wed, Oct 17, 2018 at 06:18:27AM -0700, Eric Rescorla wrote: > > > I'm responding to Ben here, because I think it's worth adding some > > clarity. > > > However, I want to flag that I'm going to be rather short on time for the > > > next > > > few week and not able to spend a lot of time replying to traffic on this > > > topic. Even more than usual, non-response to some point does not > > > necessarily indicate agreement. > > > > > > On Tue, Oct 16, 2018 at 6:15 PM Benjamin Kaduk <bkaduk@akamai.com> > > wrote: > > > > > > > (1) provides a channel for DANE records that is reliable in the > > absence of > > > > an attack > > > > > > > > > > I think this alone would be worthwhile -- and is the purpose I have > > always > > > had > > > in mind for the draft. > > > > It's interesting to hear that, as I seem to recall a lot of discussion > > about how a security mechanism that folds in the presence of an attack > > ... isn't really a security mechanism. > > > > So while I could concoct a few scenarios in which just (1) would be > > *useful*, the main one that comes to mind isn't really a security > > mechanism, but would rather be part of a reporting mechanism for seeing > > what kind of DANE penetration is possible. Well, and I guess any case > > where the client has some other reason to expect to see this extension > > and choke if it's absent, such as a "greenfield" case or > > application-level pinning. So I'm curious what kind of use case(s) you had > > in mind for just the transport aspect. > > > > Given that you just described at least two use cases, I feel like you've > answered > your own question here. Hardly. In particular, I was asking what *you* had in mind -- my listing was intended to be more of a "straw man" sort of thing. -Ben
- [TLS] Interim notes and draft-ietf-tls-dnssec-cha… Christopher Wood
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Tom Ritter
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Viktor Dukhovni
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Nico Williams
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Daniel Kahn Gillmor
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Viktor Dukhovni
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… John Levine
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Benjamin Kaduk
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Viktor Dukhovni
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Paul Wouters
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Viktor Dukhovni
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Eric Rescorla
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Benjamin Kaduk
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Sean Turner
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Viktor Dukhovni
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Eric Rescorla
- Re: [TLS] Interim notes and draft-ietf-tls-dnssec… Benjamin Kaduk