Re: [mile] Secdir last call review of draft-ietf-mile-xmpp-grid-09
Matthew Miller <linuxwolf+ietf@outer-planes.net> Wed, 06 March 2019 01:28 UTC
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From: Matthew Miller <linuxwolf+ietf@outer-planes.net>
Date: Tue, 05 Mar 2019 18:27:57 -0700
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To: Peter Saint-Andre <stpeter@mozilla.com>
Cc: "Nancy Cam-Winget (ncamwing)" <ncamwing@cisco.com>, "secdir@ietf.org" <secdir@ietf.org>, "mile@ietf.org" <mile@ietf.org>, "draft-ietf-mile-xmpp-grid.all@ietf.org" <draft-ietf-mile-xmpp-grid.all@ietf.org>, "ietf@ietf.org" <ietf@ietf.org>
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Subject: Re: [mile] Secdir last call review of draft-ietf-mile-xmpp-grid-09
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Thank you Nancy and Peter for your replies. I look forward to the next revision. On Mon, Mar 4, 2019 at 7:39 PM Peter Saint-Andre <stpeter@mozilla.com> wrote: > A few further thoughts from a co-author but not primary author. > > On 3/4/19 4:00 PM, Nancy Cam-Winget (ncamwing) wrote: > > Hi Matt, thanks for the review. Please see below for comments: > > > > On 1/23/19, 10:01, "Matthew Miller" <linuxwolf+ietf@outer-planes.net> > wrote: > > > > Reviewer: Matthew Miller > > Review result: Has Issues > > > > I have reviewed this document as part of the security directorate's > > ongoing effort to review all IETF documents being processed by the > > IESG. These comments were written primarily for the benefit of the > > security area directors. Document editors and WG chairs should > > treat these comments just like any other last call comments. > > > > Document: draft-ietf-mile-xmpp-grid-09 > > Reviewer: Matthew A. Miller > > Review Date: 2018-01-23 > > IETF LC End Date: 2019-01-14 > > IESG Telechat date: 2019-01-24 > > > > Summary: > > > > This document defines an architecture for distributing security > > information using publish-subscribe semantics over XMPP. It is > > well written and addressed many (but not all) known concerns > > of a publish-subscribe > > > > This document has issues that should be addressed before it is > > ready to be published as a Proposed Standard. > > > > > > Major Issues: > > > > The document does not explicitly discuss the implications of the > > Controller and Broker having plaintext access and control of the > > published data. It seems to be implied in the section 8.2.3 for > > the Controller (and, for those proficient with XMPP, the Broker). > > I am not strongly recommending any sort of end-to-end protections > > be proscribed (since existing protections are likely unsuitable > > for this architecture). > > [NCW] We have added a sentence in 8.3.3 to address protection > > against controller/broker to employ end-to-end encryption. > > Matt's point about "this architecture" is relevant. We should make it > clearer in the document that the XMPP-Grid is not intended to be an open > system that any arbitrary entity can join; instead, it is a private > network (not connected to the public XMPP network) to which only > authorized entities are allowed access. > Thanks, I think both clarifications will be very helpful. > > The document does not have any real discussion around persistence > > of node items. if they are expected or desired to be persisted, > > then there should be some discussion about retention policies > > (meaning: deployments ought to have one), and behaviors when a > > Platform subscribes to the Topic (e.g., should or may automatically > > send the last published item to the recent subscriber). If not, > > then some discussion on the implications of existing/historic > > data being unavailable through this mechanism. > > [NCW] Fair point. We added the following statements to the document to > address this - > > Note that the control plane may optionally also implement XEP-0203 to > facilitate delayed > > delivery of messages to the connected consumer as described in XEP-0060
- [mile] Secdir last call review of draft-ietf-mile… Matthew Miller
- Re: [mile] Secdir last call review of draft-ietf-… Nancy Cam-Winget (ncamwing)
- Re: [mile] Secdir last call review of draft-ietf-… Peter Saint-Andre
- Re: [mile] Secdir last call review of draft-ietf-… Matthew Miller