>>>>> "Jim" == Jim Schaad <i...@augustcellars.com> writes:
    >> There doesn't seem to be a way for a server to request channel
    >> binding.  If that's true we should probably add the following:
    >> Since a server cannot indicate a desire for channel binding,
    >> clients that
    Jim> have
    >> channel binding data to send SHOULD include channel-binding TLV
    >> in a request-action TLV if mutual authentication (section 3.11)
    >> succeeded.

    Jim> If this is true - then I agree it is a flaw.

    Jim> I think that one could send a channel-binding TLV with no data
    Jim> to request that a client send channel binding data back.  This
    Jim> should not cause any significant problems.

If that's permitted  then it should be explicitly documented.

I think that if this is permitted, everyone who implements channel
binding needs to be required to support this.

    Jim> One could then have Channel-binding server->peer - no data
    Jim> Channel-binding peer->server - here is my data Channel-binding
    Jim> server->peer - here is my data

Again, let's document this if it is permitted.
It's clear the spec is unclear if you and I read if differently.

    Jim> However I believe that the client can initiate this by just
    Jim> sending the channel binding TLV in the clear and not in a
    Jim> request if the client wants to initiate it.

My reading is that you cannot send a channel binding outside of a
request.  This needs clarification as well if we're reading it
differently.
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