Re: [TLS] External PSK design team
Eric Rescorla <ekr@rtfm.com> Tue, 21 January 2020 14:53 UTC
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From: Eric Rescorla <ekr@rtfm.com>
Date: Tue, 21 Jan 2020 06:52:22 -0800
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To: Jonathan Hoyland <jonathan.hoyland@gmail.com>
Cc: Mohit Sethi M <mohit.m.sethi=40ericsson.com@dmarc.ietf.org>, Björn Haase <bjoern.haase@endress.com>, TLS List <tls@ietf.org>
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Subject: Re: [TLS] External PSK design team
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I am willing to contribute. -Ekr On Tue, Jan 21, 2020 at 2:50 AM Jonathan Hoyland <jonathan.hoyland@gmail.com> wrote: > Hi All, > > This is something I'm very interested in. > > Definitely want to participate. > > Regards, > > Jonathan > > On Tue, 21 Jan 2020 at 10:04, Mohit Sethi M <mohit.m.sethi= > 40ericsson.com@dmarc.ietf.org> wrote: > >> I would let CFRG deal with the PAKE selection process: >> https://mailarchive.ietf.org/arch/msg/cfrg/-a1sW3jK_5avmb98zmFbCNLmpAs >> and not have this design team spend time and energy on designing PAKEs. >> >> --Mohit >> >> On 1/21/20 11:52 AM, Björn Haase wrote: >> > Hello to all, >> > >> > I am also willing to contribute. My concern is that I observe that in >> some industrial control applications, PSK mechanisms (that actually require >> high-entropy keys) are (mis)-used in conjunction with TLS, where the PSK is >> actually of insufficient entropy (maybe derived only from a 4 digit PIN). >> > >> > In order to fix this issue, I'd really appreciate to have an PSK-style >> TLS operation using a balanced PAKE (note that this could be implemented >> with virtually no computational overhead in comparison to conventional ECDH >> session key generation). >> > >> > Yours, >> > >> > Björn. >> > >> > >> > >> > Mit freundlichen Grüßen I Best Regards >> > >> > Dr. Björn Haase >> > >> > >> > Senior Expert Electronics | TGREH Electronics Hardware >> > Endress+Hauser Conducta GmbH+Co.KG | Dieselstrasse 24 | 70839 Gerlingen >> | Germany >> > Phone: +49 7156 209 377 | Fax: +49 7156 209 221 >> > bjoern.haase@endress.com | www.conducta.endress.com >> > >> > >> > >> > >> > >> > Endress+Hauser Conducta GmbH+Co.KG >> > Amtsgericht Stuttgart HRA 201908 >> > Sitz der Gesellschaft: Gerlingen >> > Persönlich haftende Gesellschafterin: >> > Endress+Hauser Conducta Verwaltungsgesellschaft mbH >> > Sitz der Gesellschaft: Gerlingen >> > Amtsgericht Stuttgart HRA 201929 >> > Geschäftsführer: Dr. Manfred Jagiella >> > >> > >> > Gemäss Datenschutzgrundverordnung sind wir verpflichtet, Sie zu >> informieren, wenn wir personenbezogene Daten von Ihnen erheben. >> > Dieser Informationspflicht kommen wir mit folgendem Datenschutzhinweis ( >> https://www.endress.com/de/cookies-endress+hauser-website) nach. >> > >> > >> > >> > >> > >> > Disclaimer: >> > >> > The information transmitted is intended only for the person or entity >> to which it is addressed and may contain confidential, proprietary, and/or >> privileged material. Any review, retransmission, dissemination or other use >> of, or taking of any action in reliance upon, this information by persons >> or entities other than the intended recipient is prohibited. If you receive >> this in error, please contact the sender and delete the material from any >> computer. This e-mail does not constitute a contract offer, a contract >> amendment, or an acceptance of a contract offer unless explicitly and >> conspicuously designated or stated as such. >> > >> > >> > >> > -----Ursprüngliche Nachricht----- >> > Von: TLS <tls-bounces@ietf.org> Im Auftrag von Mohit Sethi M >> > Gesendet: Dienstag, 21. Januar 2020 10:45 >> > An: Colm MacCárthaigh <colm@allcosts.net>; Sean Turner <sean@sn3rd.com> >> > Cc: TLS List <tls@ietf.org> >> > Betreff: Re: [TLS] External PSK design team >> > >> > I am certainly interested and willing to contribute. We need some >> > consensus on whether PSKs can be shared with more than 2 parties, >> > whether the parties can switch roles, etc. >> > >> > EMU is going to work on EAP-TLS-PSK and the question of >> > privacy/identities will pop-up there too. >> > >> > --Mohit >> > >> > On 1/21/20 7:33 AM, Colm MacCárthaigh wrote: >> >> Interested, as it happens - this is something I've been working on at >> Amazon. >> >> >> >> On Mon, Jan 20, 2020 at 8:01 PM Sean Turner <sean@sn3rd.com> wrote: >> >>> At IETF 106, we discussed forming a design team to focus on external >> PSK management and usage for TLS. The goal of this team would be to produce >> a document that discusses considerations for using external PSKs, privacy >> concerns (and possible mitigations) for stable identities, and more >> developed mitigations for deployment problems such as Selfie. If you have >> an interest in participating on this design team, please reply to this >> message and state so by 2359 UTC 31 January 2020. >> >>> >> >>> Cheers, >> >>> >> >>> Joe and Sean >> >>> _______________________________________________ >> >>> TLS mailing list >> >>> TLS@ietf.org >> >>> >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Fmailman%2Flistinfo%2Ftls&data=02%7C01%7Cbjoern.haase%40endress.com%7C5af7f9dcd2f746b6638a08d79e56a7dc%7C52daf2a93b734da4ac6a3f81adc92b7e%7C1%7C0%7C637151967330246544&sdata=xtt%2F1mxS0XbrTQ8mExdzUP%2F%2BHSJKrXANsVqsX%2F4sUZA%3D&reserved=0 >> >> >> > _______________________________________________ >> > TLS mailing list >> > TLS@ietf.org >> > >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Fmailman%2Flistinfo%2Ftls&data=02%7C01%7Cbjoern.haase%40endress.com%7C5af7f9dcd2f746b6638a08d79e56a7dc%7C52daf2a93b734da4ac6a3f81adc92b7e%7C1%7C0%7C637151967330246544&sdata=xtt%2F1mxS0XbrTQ8mExdzUP%2F%2BHSJKrXANsVqsX%2F4sUZA%3D&reserved=0 >> _______________________________________________ >> TLS mailing list >> TLS@ietf.org >> https://www.ietf.org/mailman/listinfo/tls >> > _______________________________________________ > TLS mailing list > TLS@ietf.org > https://www.ietf.org/mailman/listinfo/tls >
- [TLS] External PSK design team Sean Turner
- Re: [TLS] External PSK design team Rob Sayre
- Re: [TLS] External PSK design team Colm MacCárthaigh
- Re: [TLS] External PSK design team Mohit Sethi M
- Re: [TLS] External PSK design team Björn Haase
- Re: [TLS] External PSK design team Mohit Sethi M
- Re: [TLS] External PSK design team Björn Haase
- Re: [TLS] External PSK design team Jonathan Hoyland
- Re: [TLS] External PSK design team Mohit Sethi M
- Re: [TLS] External PSK design team Mohit Sethi M
- Re: [TLS] External PSK design team Eric Rescorla
- Re: [TLS] External PSK design team Russ Housley
- Re: [TLS] External PSK design team Owen Friel (ofriel)