Re: [apps-discuss] APPSDIR review of draft-ietf-mile-rfc6046-bis-03
"t.petch" <ietfc@btconnect.com> Sun, 11 December 2011 20:35 UTC
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From: "t.petch" <ietfc@btconnect.com>
To: Julian Reschke <julian.reschke@gmx.de>, IETF Apps Discuss <apps-discuss@ietf.org>
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Subject: Re: [apps-discuss] APPSDIR review of draft-ietf-mile-rfc6046-bis-03
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----- Original Message ----- From: "Julian Reschke" <julian.reschke@gmx.de> To: <draft-ietf-mile-rfc6046-bis@tools.ietf.org>; "IETF Apps Discuss" <apps-discuss@ietf.org> Cc: "The IESG" <iesg@ietf.org> Sent: Sunday, December 11, 2011 8:14 PM > I have been selected as the Applications Area Directorate reviewer for > this draft (for background on appsdir, please see > http://trac.tools.ietf.org/area/app/trac/wiki/ApplicationsAreaDirectorate). > > Please resolve these comments along with any other Last Call comments > you may receive. Please wait for direction from your document shepherd > or AD before posting a new version of the draft. > > Document: draft-ietf-mile-rfc6046-bis-03 > Title: Transport of Real-time Inter-network Defense (RID) Messages > Reviewer: Julian Reschke > Review Date: 2011-12-11 > IETF Last Call Date: not last-called yet > IESG Telechat Date: - > > Summary: This draft is almost ready for publication as as a Proposed > Standard and should be revised before publication > > NOTE: I have *not* reviewed any security-related aspects. > > > Major Issues: > > - > > Minor Issues: > > As pointed out in Section 3, this protocol really (ab)uses HTTP as a > simple transport, and uses only a tiny subset of HTTP. This is properly > explained, and the decision to use a custom port number makes sense. > > What I'm missing here are a few things that would probably make it > easier to understand what's actually required: > > 1) Does a RID endpoint need to implement all REQUIRED HTTP/1.1 features? > For instance, does it need to understand Expect: 100-continue, and does > it have to support GET and HEAD on "/"? Are there requirements for > request URIs other than "/"? > > 2) What's the Internet Media Type to be used with RID payloads? Is it > defined? If no, why not? Is it required to be used? > > 3) How do retries work when a request fails? Is the use of POST here > idempotent so that the request can be repeated? > > 4) How does matching between request and callback work? > > 5) It might be a good idea to add a complete example of an exchange that > uses the callback pattern. > > Also, in Section 4: > > For transport confidentiality, identification, and authentication, > TLS with mutual authentication MUST be used to secure the HTTP > connection as in [RFC2818]. The session MUST use non-NULL > ciphersuites for authentication, integrity, and confidentiality; > sessions MAY be renegotiated within these constraints. Although TLS > implementations typically support the older SSL protocol, a RID peer > MUST NOT request, offer, or use any version of SSL, or any version of > TLS prior to 1.1 [RFC4346], due to known security vulnerabilities in > prior versions of the protocol; see Appendix E of [RFC5246] for more. > > This is a bit confusing because RFC5246 obsoletes RFC4346; there's > probably a good reason for what it says here, but it might be good to > explain what it is. Julian It makes sense because RFC4346 is the formal definition of TLS1.1, loopholes and all, whereas RFC5246 defines TLS1.2. I think it difficult to add any explanation without this becoming a TLS 101. Tom Petch > Nits: > > RID systems SHOULD NOT use TCP port 443 (the standard port for HTTP > over TLS/SSL) for RID messages; this avoids posting RID messages to > web servers that may not handle RID messages correctly. > > Actually, it does not, because a web server may run on the RID port > (4590) as well. If there's a security concern with the protocol with > respect to generic web servers, it should be pointed out (and > potentially fixed). > > Abstract: > > (...). This document updates the previous [RFC6046] to > change the intended status to Proposed Standard, and to reference the > updated RID specification. > > This is procedural and should be moved to the Introduction (this will > also fix the issue of having a reference in the Abstract). > > among members in a RID consortium. This document specifies the > transport of RID messages within HTTP [RFC2616] Request and Response > messages transported over TLS [RFC5246] (herein, HTTP/TLS). Note > > Missing "." after [RFC2616]. > > 1.2. Normative and Informative sections > > Section 3, Section 4, and Section 5 of this document are normative; > the remainder of the document is informative. > > I don't think is is needed here. > > References: > > draft-moriarty-mile-rfc6045-bis-02: [2011-08-27 ID-Exists Replaced] (not > active) > RFC4346: [PROPOSED STANDARD] obsoleted by RFC5246; maybe this one is > informative? > > > Best regards, Julian > _______________________________________________ > apps-discuss mailing list > apps-discuss@ietf.org > https://www.ietf.org/mailman/listinfo/apps-discuss > >
- Re: [apps-discuss] APPSDIR review of draft-ietf-m… Brian Trammell
- [apps-discuss] APPSDIR review of draft-ietf-mile-… Julian Reschke
- Re: [apps-discuss] APPSDIR review of draft-ietf-m… t.petch