Re: [quicwg/base-drafts] First byte changes (#2006)

[Martin Thomson <[e-mail]>]

martinthomson commented on this pull request.



>  
-: The fourth bit (0x10) of byte 0 is set to 1.
+: The next two bits (those with a mask of 0x18) of byte 0 are reserved.  These
+  bits are protected using header protection (see Section 5.4 of
+  {{QUIC-TLS}}).  The value included prior to protection MUST be set to 0.  An

If you want to negotiate a new version, you can assign these bits however you choose in that version.  Or, in this version, you could negotiate an extension that sets these in different ways (though probably only in short headers in practice).  That extension could also decide to remove any encryption.  So yes, you could use the spare bits for a VEC, if both peers agreed that was a good idea.

Until that time, this is protecting those bits the best way we know how.

-- 
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/2006#discussion_r234792984