Hi Alan,

adding tcpinc. How does this relate to working tcpinc?

Mirja


> Am 28.05.2016 um 10:32 schrieb Alan Ford <[email protected]>:
> 
> Hi all,
> 
> Following on from the discussion at the previous two IETFs, we have submitted 
> two drafts proposing a way forward for resolving the loadbalancers issue (or 
> in other words, separating tokens and keys), and in turn have a proposal for 
> using TLS keying material with MPTCP.
> 
> This proposal comes in the form of two drafts, to separate protocol changes 
> (which we would be proposing for adoption into rfc6824bis), and TLS-specific 
> extensions (which we would suggest are kept separate).
> 
> The protocol changes 
> (http://www.ietf.org/id/draft-paasch-mptcp-application-authentication-00.txt) 
> propose an additional handshake mechanism to be negotiated in the MP_CAPABLE 
> flags - the "G" bit, allocated to "application-layer". This means that MPTCP 
> queries the application layer for Token and Key materials. This is negotiated 
> by being offered by the initiator, and chosen by the answerer.
> 
> Only tokens are sent on the wire, and these can be used to contain any 
> information that could assist a far end to demultiplex connections (e.g. 
> including routing data which would help front-end proxies).
> 
> Minor changes that fall out of this also mean the IDSN, in that scenario, 
> would be generated from the Token not the Key.
> 
> Keying information may not be available at the SYN/ACK exchange, but will be 
> provided by the application when available. Only once that has occurred can 
> subflow setup continue.
> 
> The TLS draft 
> (http://www.ietf.org/id/draft-paasch-mptcp-tls-authentication-00.txt) shows 
> how we can interface this proposal with TLS, using RFC5705 key export from 
> TLS. This requires no changes to the protocol, but would register a new 
> RFC5705 exporter with IANA. Exported keys from a TLS session would be passed 
> to the MPTCP layer and used in the HMAC authentication algorithm.
> 
> We would like to present and discuss these points in the upcoming interim, to 
> see if there is consensus to add the necessary protocol changes to rfc6824bis.
> 
> Best regards,
> Alan & Christoph
> _______________________________________________
> multipathtcp mailing list
> [email protected]
> https://www.ietf.org/mailman/listinfo/multipathtcp

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