tlswg / dtls-conn-id

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Martin Duke's IESG review #107

Open thomas-fossati opened 3 years ago

thomas-fossati commented 3 years ago

https://mailarchive.ietf.org/arch/msg/tls/0hyoFBsJ_21mv2hUEPPQhmGOMes/

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COMMENT:
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Thanks for this document.

Section 9.3.3 of quic-transport, which deals with basically the same security
model, also requires the receiving endpoint to probe the original address, not
just the new one, to address a somewhat more difficult attack. It would be good
to at least RECOMMEND this behavior for DTLS applications, and/or
(repeat/informatively reference) the logic there.
kaduk commented 3 years ago

I opened https://github.com/tlswg/dtls-rrc/issues/3 to (also?) track this. I'm mostly okay with dtls-connection-id listing a necessary-but-not-necessarily-sufficient list of requirements for migration, and leaving the discussion of both how and what to probe to dtls-rrc.