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Re: [dns-privacy] Start of WGLC for draft-ietf-dprive-dnsodtls.

"Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com> Thu, 18 August 2016 14:18 UTC

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From: "Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com>
To: Bob Harold <rharolde@umich.edu>
Thread-Topic: [dns-privacy] Start of WGLC for draft-ietf-dprive-dnsodtls.
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Date: Thu, 18 Aug 2016 14:17:57 +0000
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Cc: "DPRIVE-chairs@tools.ietf.org" <DPRIVE-chairs@tools.ietf.org>, "dns-privacy@ietf.org" <dns-privacy@ietf.org>, Warren Kumari <warren@kumari.net>, "draft-ietf-dprive-dnsodtls@ietf.org" <draft-ietf-dprive-dnsodtls@ietf.org>
Subject: Re: [dns-privacy] Start of WGLC for draft-ietf-dprive-dnsodtls.
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From: Bob Harold [mailto:rharolde@umich.edu]
Sent: Thursday, August 18, 2016 6:56 PM
To: Tirumaleswar Reddy (tireddy) <tireddy@cisco.com>
Cc: Warren Kumari <warren@kumari.net>; dns-privacy@ietf.org; DPRIVE-chairs@tools.ietf.org; draft-ietf-dprive-dnsodtls@ietf.org
Subject: Re: [dns-privacy] Start of WGLC for draft-ietf-dprive-dnsodtls.


On Thu, Aug 18, 2016 at 1:14 AM, Tirumaleswar Reddy (tireddy) <tireddy@cisco.com<mailto:tireddy@cisco.com>> wrote:
From: Bob Harold [mailto:rharolde@umich.edu<mailto:rharolde@umich.edu>]
Sent: Wednesday, August 17, 2016 9:13 PM
To: Warren Kumari <warren@kumari.net<mailto:warren@kumari.net>>
Cc: dns-privacy@ietf.org<mailto:dns-privacy@ietf.org>; draft-ietf-dprive-dnsodtls@ietf.org<mailto:draft-ietf-dprive-dnsodtls@ietf.org>; DPRIVE-chairs@tools.ietf.org<mailto:DPRIVE-chairs@tools.ietf.org>
Subject: Re: [dns-privacy] Start of WGLC for draft-ietf-dprive-dnsodtls.



On Tue, Aug 16, 2016 at 1:05 PM, Warren Kumari <warren@kumari.net<mailto:warren@kumari.net>> wrote:
Dear DPRIVE WG,

The authors of draft-ietf-dprive-dnsodtls have indicated that they
believe that the document is ready, and have asked for Working Group
Last Call.

The draft is available here:
https://datatracker.ietf.org/doc/draft-ietf-dprive-dnsodtls/

Please review this draft to see if you think it is ready for
publication and send comments to the list, clearly stating your view.

This WGLC ends Tue 30-Aug-2016.

In addition, to satisfy RFC 6702 ("Promoting Compliance with
Intellectual Property Rights (IPR)"):
Are you personally aware of any IPR that applies to
draft-ietf-dprive-dnsodtls?  If so, has this IPR been disclosed in
compliance with IETF IPR rules? (See RFCs 3979, 4879, 3669, and 5378
for more details.)

Thanks,
Warren Kumari

Looks good to me.  A couple grammatical concerns:

Section "3.1.  Session Initiation"
The last sentance might sound better by adding "therefore" in the middle:

"There are
   significant security issues in mixing protected and unprotected data,
            therefore
   UDP connections on a port designated by a given server for DNS-over-
   DTLS are reserved purely for encrypted communications."

[TR] Updated in my local copy.

Section "4. Performance Considerations"
This sentence does not read well to me:

"TLS False Start] which reduces round-trips
   by allowing the TLS second flight of messages (ChangeCipherSpec) to
   also contain the (encrypted) DNS query. "

[TR] How about the following line ?
TLS False Start [I-D.ietf-tls-falsestart] can reduce the round-trips in certain situations.

[BH] That would work.. I was think just change "which reduces" to "can reduce":
"TLS False Start] can reduce round-trips
   by allowing the TLS second flight of messages (ChangeCipherSpec) to
   also contain the (encrypted) DNS query. "

[TR] Thanks, updated.

-Tiru


-Tiru

--
Bob Harold

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