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)