Minutes IETF100: cfrg
minutes-100-cfrg-00

Singapore
Wedneday 15 November 2017, afternoon slot II
Alexey chairing solo
Rich Salz minutes
Yoav Nir jabber scribe

Doc status
                See chair slides for details

Crypto Review panel
                Lots of good reviews done

Re-keying mechanisms for symmetric keys, Stanislav Smyshlyaev
                Explanation of goals, response to reviews and feedback. Plan to
                get version addressing existing reviews by end of January. Q&A
                about how to signal re-key in, for example, non-TLS uses

Transition from classical to Post-Quantum Cryptography, Paul Hoffman
                (Last time Kenny spoke, Paul wasn’t present; this time Paul’s
                present and Kenny isn’t.  Hmm) Helping people who like to make
                predictions, make predictions Proposed CFRG adoption. 
                Consensus in room was strongly in favor, some need more info.
                To be confirmed on the list. Q&A about num of qubits needed for
                2K RSA, possibility of multiple smaller-sized machines, and
                practicality of using (much) larger curves with existing
                algorithms Get your friends to help review and/or provide
                content!

SPAKE2, a PAKE, Benjamin Kaduk
                Expired back in February 2016, and Ben picked it up and has a
                new version coming out Initial use-case is KRB pre-auth before
                getting a ticket; there’s others Q&A on tech details, and
                pointing out the “pake requirements” RFC that this should
                reference

PEKX, Public Key Exchange Dan Harkins
                Define a way to exchange ‘raw’ public keys, including auth and
                binding an identity Has had  crypto review, has interoperable
                implementations Looking to have CFRG adoption; insufficient
                readers in room, will take to the list Q&A about identity,
                binding to key etc

Cryptographically traversable blockchains or ‘skipchains’ Bryan Ford
                Addressing problem of efficient verification of block chains –
                how to “catch up” on state See “Chainiac” paper in Usenix
                Security 2017 proceedings (which has more than just the
                skipchain cryptographic structure) Q&A about signing roster
                changes, and picking trusted entities (see paper)