Re: [quicwg/base-drafts] Version validation fields can't move or change (#498)

[ianswett <[e-mail]>]

ianswett commented on this pull request.



> @@ -1131,6 +1131,13 @@ client MUST terminate with a QUIC_VERSION_NEGOTIATION_MISMATCH error code if
 version negotiation occurred but it would have selected a different version
 based on the value of the supported_versions list.
 
+The position and size of the version validation fields in the transport
+parameters MUST NOT change between different versions of QUIC.  If a version of
+QUIC needs to define a new format for transport parameters, it MUST define and
+use a new TLS extension rather than redefine the layout of the existing

I misunderstood what this text was attempting to accomplish, I was thinking of transport parameters as connection ID/packet number/etc.

That being said, I'm not clear on why the transport parameter format can't be tied to QUIC version.  Can you explain more about how this attack works?

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/quicwg/base-drafts/pull/498#discussion_r117035145