Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-18 Thread Benjamin Kaduk
On Wed, Oct 17, 2018 at 02:48:47PM -0700, Eric Rescorla wrote: > On Wed, Oct 17, 2018 at 7:40 AM Benjamin Kaduk 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 t

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-17 Thread Eric Rescorla
On Wed, Oct 17, 2018 at 7:40 AM Benjamin Kaduk 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 w

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-17 Thread Viktor Dukhovni
> On Oct 17, 2018, at 9:18 AM, Eric Rescorla 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. Well, a security mechanism that "work

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-17 Thread Sean Turner
> On Oct 17, 2018, at 10:40, Benjamin Kaduk wrote: > > Seeing as you are busy the next few weeks, perhaps I can ask the chairs > to go through the email history and summarize these substantial issues > that have been raised -- I am not confident that I could reproduce them > from memory, mysel

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-17 Thread Benjamin Kaduk
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

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-17 Thread Eric Rescorla
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 necess

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-16 Thread Viktor Dukhovni
On Wed, Oct 17, 2018 at 01:46:20AM -0400, Paul Wouters wrote: > On Tue, 16 Oct 2018, Daniel Kahn Gillmor wrote: > > > That said, it sounds like negotiating the details of how to do this > > pinning is the main blocker, and i'm sick of this proposal being blocked > > (because i want it for "greenf

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-16 Thread Paul Wouters
On Tue, 16 Oct 2018, Daniel Kahn Gillmor wrote: That said, it sounds like negotiating the details of how to do this pinning is the main blocker, and i'm sick of this proposal being blocked (because i want it for "greenfield" implementations last year). Imagine how sick I will be when I try to

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-16 Thread Viktor Dukhovni
> On Oct 16, 2018, at 9:07 PM, John Levine wrote: > > Something like "require DANE certs until time N" should be plenty. > > Remember that you can also unpin by publishing a signed NXDOMAIN or > NODATA. Since you need to have DNSSEC working to get the pin in the > first place, that doesn't s

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-16 Thread Benjamin Kaduk
On Tue, Oct 16, 2018 at 06:16:22PM -0400, Daniel Kahn Gillmor wrote: > > I agree with both Tom and Viktor that the current draft seems to be > misaligned between the goals and the stated scope. I also agree that there is some misalignment of this nature. My attempt at a root cause analysis would

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-16 Thread John Levine
Hi from DNS land. >pinning, but i won't go too far into the weeds here. Just a quick >summary of my understanding: > > * The existence of a pin only requires that the service operator > maintain the ability to respond to this extension in the future -- it > doesn't require specific keys, or e

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-16 Thread Viktor Dukhovni
> On Oct 16, 2018, at 6:16 PM, Daniel Kahn Gillmor > wrote: > > Just a quick summary of my understanding: > > * The existence of a pin only requires that the service operator > maintain the ability to respond to this extension in the future -- it > doesn't require specific keys, or even

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-16 Thread Daniel Kahn Gillmor
Hi all-- I'm disappointed in how long this WG is taking to get draft-ietf-tls-dnssec-chain-extension out the door. I agree with both Tom and Viktor that the current draft seems to be misaligned between the goals and the stated scope. I wanted the draft to be done by now because i think it will b

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-10 Thread Nico Williams
On Mon, Oct 08, 2018 at 05:09:40PM -0700, Christopher Wood wrote: > Notes from the TLS interim meeting held in September are now online > [1]. To recap, the meeting attempted to focus on three primary > questions: > > 1. What is the fundamental security issue? What is the purpose of this > extensi

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-09 Thread Viktor Dukhovni
> On Oct 8, 2018, at 8:09 PM, Christopher Wood > wrote: > > 1. What is the fundamental security issue? What is the purpose of this > extension? > 2. Under what circumstances should DNS records received in the > extension be cached and reused for future use? > 3. Is pinning required? If so, what

Re: [TLS] Interim notes and draft-ietf-tls-dnssec-chain-extension next steps

2018-10-09 Thread Tom Ritter
I was not at the interim, so this email comes without context of that discussion. Apologies if this was exactly what the chairs didn't want... On Tue, 9 Oct 2018 at 00:10, Christopher Wood wrote: > - October 8 through October 19: Discuss the problem statement. In > particular, if anyone feels the