Re: [MLS] Virtual Interim minutes
Sean Turner <sean@sn3rd.com> Wed, 12 February 2020 02:11 UTC
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From: Sean Turner <sean@sn3rd.com>
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Date: Tue, 11 Feb 2020 21:11:38 -0500
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Subject: Re: [MLS] Virtual Interim minutes
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MLSWG, Revised minutes from the first virtual interim posted at the link below. If you find an issue, submit a PR to Github: https://github.com/mlswg/wg-materials/blob/master/virtual-interim-recurring/01-29-2020.md In one week, I will post the final minutes to the IETF site. Draft minutes for the second virtual interim posted at the link below. If you find an issue, submit a PR to Github: https://github.com/mlswg/wg-materials/blob/master/virtual-interim-recurring/02-05-2020.md spt > On Jan 29, 2020, at 16:38, Nick Sullivan <nick=40cloudflare.com@dmarc.ietf.org> wrote: > > MLSWG, > > Draft minutes from the productive first virtual interim posted below. If you find an issue, submit a PR to Github: > https://github.com/mlswg/wg-materials/blob/master/virtual-interim-recurring/01-29-2020.md > > Nick & Sean > > >>> > Attendees: > Joel Alwen, Richard Barnes, Raphael Robert, Britta Hale, Brendan McMillion, Nick Sullivan > > #247 - Welcome confirmation and key derivation > * Fixes bugs RLB found in the last draft while implementing > * OK to merge after rebase / conflict resolution > > #246 - Bugfixes in ClientInitKey, Commit, and Welcome > * Derives the Welcome encryption key instead of generating fresh > * ... under the general theory about not requiring freshness when not necessary > * OK to merge after rebase / conflict resolution > > #283 - Use the same ratchet for Handshake and Application keys > * There's no point to FS for Proposals because clients have to cache the plaintext anyway > * Given that, the "flat derivation" approach should be fine > * We should have separate keys per sender to it easier to avoid nonce collisions > * RLB and RR to decide whether we should derive nonces on a hash ratchet or just use a counter > > #287 - Switch to signing strategy using one signature per leaf. > * There was agreement among those on the call to proceed with this strategy (tree-hash-covers-parent-hash) > * ... given the deniability concerns and unclear benefit of the alternative (parent-hash-covers-tree-hash) > * If further considerations come to light from analysis, we can revisit later > _______________________________________________ > MLS mailing list > MLS@ietf.org > https://www.ietf.org/mailman/listinfo/mls
- [MLS] Virtual Interim minutes Nick Sullivan
- Re: [MLS] Virtual Interim minutes Richard Barnes
- Re: [MLS] Virtual Interim minutes Benjamin Beurdouche
- Re: [MLS] Virtual Interim minutes Richard Barnes
- Re: [MLS] Virtual Interim minutes Sean Turner
- Re: [MLS] Virtual Interim minutes Sean Turner
- Re: [MLS] Virtual Interim minutes Sean Turner