Re: [TLS] Adoption call for Deprecating FFDH(E) Ciphersuites in TLS
Carrick Bartle <cbartle891@icloud.com> Fri, 30 July 2021 18:56 UTC
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From: Carrick Bartle <cbartle891@icloud.com>
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Date: Fri, 30 Jul 2021 11:56:07 -0700
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To: Martin Thomson <mt@lowentropy.net>
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Subject: Re: [TLS] Adoption call for Deprecating FFDH(E) Ciphersuites in TLS
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Sorry, the title will be changed in the next version, which I'll be posting as soon as possible. You are correct about the scope of the work. > On Jul 29, 2021, at 5:41 PM, Martin Thomson <mt@lowentropy.net> wrote: > > I support the *contents* of this document. The title, however, I can't agree to. So I want to be clear about the scope of the work, namely deprecating semi-static FFDH and ECDH suites and any use of FFDHE ephemeral suites with reused keys. > > The draft limits the ban on ephemeral key reuse to FFDHE, which is right; I could tolerate a prohibition on reuse for ECDH, but I know that we rely on that for HPKE and other things, so it can't really be bad enough to ban. > > Cheers, > Martin > > On Fri, Jul 30, 2021, at 07:50, Joseph Salowey wrote: >> This is a working group call for adoption for Deprecating FFDH(E) >> Ciphersuites in TLS (draft-bartle-tls-deprecate-ffdhe-00 >> <https://datatracker.ietf.org/doc/draft-bartle-tls-deprecate-ffdhe/ <https://datatracker.ietf.org/doc/draft-bartle-tls-deprecate-ffdhe/>>). >> We had a presentation for this draft at the IETF 110 meeting and since >> it is a similar topic to the key exchange deprecation draft the chairs >> want to get a sense if the working group wants to adopt this draft >> (perhaps the drafts could be merged if both move forward). Please >> review the draft and post your comments to the list by Friday, August >> 13, 2021. >> >> Thanks, >> >> The TLS chairs >> _______________________________________________ >> TLS mailing list >> TLS@ietf.org >> https://www.ietf.org/mailman/listinfo/tls >> > > _______________________________________________ > TLS mailing list > TLS@ietf.org <mailto:TLS@ietf.org> > https://www.ietf.org/mailman/listinfo/tls <https://www.ietf.org/mailman/listinfo/tls>
- [TLS] Adoption call for Deprecating FFDH(E) Ciphe… Joseph Salowey
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Salz, Rich
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Martin Thomson
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Carrick Bartle
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Carrick Bartle
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Martin Thomson
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Ilari Liusvaara
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Viktor Dukhovni
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Benjamin Kaduk
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Viktor Dukhovni
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Carrick Bartle
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Rene Struik
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Blumenthal, Uri - 0553 - MITLL
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Joseph Salowey
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Filippo Valsorda
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… David Benjamin
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Blumenthal, Uri - 0553 - MITLL
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Eric Rescorla
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Salz, Rich
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Blumenthal, Uri - 0553 - MITLL
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Loganaden Velvindron
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Benjamin Kaduk
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Dan Brown
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Peter Gutmann
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Blumenthal, Uri - 0553 - MITLL
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Carrick Bartle
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Joseph Salowey
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Filippo Valsorda
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Blumenthal, Uri - 0553 - MITLL
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Filippo Valsorda
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Blumenthal, Uri - 0553 - MITLL
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Rene Struik
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Filippo Valsorda
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Nimrod Aviram
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Blumenthal, Uri - 0553 - MITLL
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Rene Struik
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Rob Sayre
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Nimrod Aviram
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Carrick Bartle
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Carrick Bartle
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Rob Sayre
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Carrick Bartle
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Salz, Rich
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Joseph Salowey
- Re: [TLS] Adoption call for Deprecating FFDH(E) C… Salz, Rich