Re: [secdir] SecDir review of draft-loreto-http-bidirectional-05
Peter Saint-Andre <stpeter@stpeter.im> Mon, 03 January 2011 20:54 UTC
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Date: Mon, 03 Jan 2011 13:56:28 -0700
From: Peter Saint-Andre <stpeter@stpeter.im>
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To: "Laganier, Julien" <julienl@qualcomm.com>
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Cc: "draft-loreto-http-bidirectional.all@tools.ietf.org" <draft-loreto-http-bidirectional.all@tools.ietf.org>, "iesg@ietf.org" <iesg@ietf.org>, "secdir@ietf.org" <secdir@ietf.org>
Subject: Re: [secdir] SecDir review of draft-loreto-http-bidirectional-05
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Done. On 1/3/11 12:17 PM, Peter Saint-Andre wrote: > Super. We'll push out a revised I-D in the next day or two. > > On 1/3/11 12:05 PM, Laganier, Julien wrote: >> Thanks Pete, what you propose below seems appropriate. >> >> --julien >> >> Peter Saint-Andre wrote: >>> >>> Thanks for your review, and our apologies for the delayed reply. >>> >>> On 12/16/10 9:38 AM, Laganier, Julien wrote: >>>> 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. >>>> >>>> The document describes "Known issues and best practices for the Use >>>> of Long Polling and Streaming in Bidirectional >>>> HTTP", and it has the following abstract: >>>> >>>> There is widespread interest in using the Hypertext Transfer >>>> Protocol (HTTP) to enable asynchronous or server-initiated >>>> communication from a server to a client as well as from a client to a >>>> server. This document describes the known issues and the best >>>> practices related to the use of HTTP, as it exists today, to enable >>>> such "bidirectional HTTP". The two existing mechanisms, called "HTTP >>>> long polling" and "HTTP streaming" are described. >>>> >>>> The document is very clear and articulate and I have not found any >>>> security issues that were not covered appropriately in the Security >>>> Considerations sections. >>>> >>>> I have two concerns regarding the use of "should", "must" etc.: >>>> >>>> 1. I have found at least one occurrence where a recommendation is >>>> made using lower cases "recommended" and "should". Should upper cases >>>> be used instead? >>> >>> Currently this document does not reference RFC 2119 or use capitalized >>> keywords. Instead of adding such a reference, I suggest changing that >>> text to: >>> >>> Several experiments have shown success with timeouts as high as 120 >>> seconds, but generally 30 seconds is a safer value. Therefore >>> vendors of network equipment wishing to be compatible with the HTTP >>> long polling mechanism are advised to implement a timeout >>> substantially greater than 30 seconds (where "substantially" means >>> several times more than the medium network transit time). >>> >>>> 2. Similarly, parts of the text describes node behavior using lower >>>> cases "should" and "must". This makes it hard for the reader to >>>> differentiate between behavior specified in another standard document >>>> from behavior that can be reasonably expected from a deployed >>>> implementation. I would suggest that upper case requirements key >>>> words ("SHOULD", "MUST") be used if the behavior thereby enounced is >>>> specified within another RFC documents, and that document be cited >>>> next to the statement. >>> >>> The sentences you mention indeed simply cite other RFCs. Because the >>> actual normative text is contained in the referenced RFCs, I suggest >>> that we remove the lowercase "should" and "must" words from this I-D. >>> >>>> Nits: >>>> >>>> s/DOS attacks\.[RFC4732]/Denial-of-Service (DoS) attacks [RFC4732]/ >>> >>> Fixed. >>> >>> Peter > -- Peter Saint-Andre https://stpeter.im/
- [secdir] SecDir review of draft-loreto-http-bidir… Laganier, Julien
- Re: [secdir] SecDir review of draft-loreto-http-b… Laganier, Julien
- Re: [secdir] SecDir review of draft-loreto-http-b… Peter Saint-Andre
- Re: [secdir] SecDir review of draft-loreto-http-b… Peter Saint-Andre
- Re: [secdir] SecDir review of draft-loreto-http-b… Peter Saint-Andre