Re: [Pearg] IRTF Chair review of draft-irtf-pearg-censorship-06
"Dr. Joseph Lorenzo Hall" <hall@isoc.org> Thu, 15 December 2022 17:49 UTC
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From: "Dr. Joseph Lorenzo Hall" <hall@isoc.org>
To: Mallory Knodel <mknodel@cdt.org>, Colin Perkins <csp@csperkins.org>, "pearg@irtf.org" <pearg@irtf.org>
CC: "pearg-chairs@ietf.org" <pearg-chairs@ietf.org>, "draft-irtf-pearg-censorship@ietf.org" <draft-irtf-pearg-censorship@ietf.org>
Thread-Topic: [Pearg] IRTF Chair review of draft-irtf-pearg-censorship-06
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Date: Thu, 15 Dec 2022 17:49:26 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/pearg/U4JCp5RLUZCK3CjaFzOAgOKnSAU>
Subject: Re: [Pearg] IRTF Chair review of draft-irtf-pearg-censorship-06
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Thank you, Mallory! -- Joseph Lorenzo Hall, Distinguished Technologist, Internet Society hall@isoc.org | +1-703-483-9504 internetsociety.org | @internetsociety pgp: https://josephhall.org/gpg-key.txt 3CA28D7B9F6DDBD34B1016075F86698740A9A871 ________________________________ From: Pearg <pearg-bounces@irtf.org> on behalf of Mallory Knodel <mknodel@cdt.org> Sent: Thursday, December 15, 2022 12:40:32 PM To: Colin Perkins <csp@csperkins.org>; pearg@irtf.org <pearg@irtf.org> Cc: pearg-chairs@ietf.org <pearg-chairs@ietf.org>; draft-irtf-pearg-censorship@ietf.org <draft-irtf-pearg-censorship@ietf.org> Subject: Re: [Pearg] IRTF Chair review of draft-irtf-pearg-censorship-06 Hi Colin and all, I made some changes in the new version thusly: On 12/2/22 12:29 PM, Colin Perkins wrote: > RFC 5743 compliance: The draft does not follow the guidelines in RFC 5743 Fixed. > There are two places where specific censorship products are mentioned, along with citations of their use (SmartFilter in §3 and §4.2.1, NetSweeper in §4.2.1). Given that the set of such products changes over time, and is likely to become rapidly obsolete, I wonder if the draft might better just list the classes of products and leave the specifics to the cited sources? Agree-- and since those sections included enough description of those technologies it was easy to remove them. However I did have to change the citation for NarusInsight because the former citation (directly to the EFF blog post about the AT&T lawsuit) didn't mention it. I use the Wikipedia article about the lawsuit instead, which gives a better overview of the techniques in question. > §4.2.3: “Note that TLS 1.3 acts as a security component of QUIC” – do the differences in the way TLS integrates with QUIC affect censorship as described in this draft? My interpretation of the intention of this sentence is to point out that various parts of TLS 1.3 are used for blocking, but that each of these parts then can be used to block QUIC in the same way. So rather than having a QUIC subsection, they are combined. I checked the subsequent sections and have confirmed that the subsections where relevant indicate where QUIC can be blocked or where QUIC cannot be blocked with the same method given that it is, still, different from TLS. Additional note! Another major change that I should note here is that I've now added some text throughout about image hash matching. Essentially anywhere keyword or URL blocklist is mentioned in a way that is adjacent to content filtering, I felt it appropriate to note the way that images and videos can also be detected and actioned with removal. The very brief text is cited to an excellent description of Apple's proposed NeuralHash scheme written up by ekr, and can be found under 3.0. Technical prescription and 4.2.4. Instrumenting Content Distributors. Thanks for the review, Colin, -Mallory -- Mallory Knodel CTO, Center for Democracy and Technology gpg fingerprint :: E3EB 63E0 65A3 B240 BCD9 B071 0C32 A271 BD3C C780 -- Pearg mailing list Pearg@irtf.org https://www.irtf.org/mailman/listinfo/pearg
- [Pearg] IRTF Chair review of draft-irtf-pearg-cen… Colin Perkins
- Re: [Pearg] IRTF Chair review of draft-irtf-pearg… Dr. Joseph Lorenzo Hall
- Re: [Pearg] IRTF Chair review of draft-irtf-pearg… Colin Perkins
- Re: [Pearg] IRTF Chair review of draft-irtf-pearg… Dr. Joseph Lorenzo Hall
- Re: [Pearg] IRTF Chair review of draft-irtf-pearg… Mallory Knodel
- Re: [Pearg] IRTF Chair review of draft-irtf-pearg… Colin Perkins
- Re: [Pearg] IRTF Chair review of draft-irtf-pearg… Eric Rescorla
- Re: [Pearg] IRTF Chair review of draft-irtf-pearg… Colin Perkins