I’m sure you’ve been perched on the edge of your seat, waiting to
see what would happen in the next episode of the riveting drama of NAC
standards. In our last episode, the IETF NEA Working Group had issued a
call for client-server NAC protocols to be considered for
standardization. Who would answer this call? We were all waiting to see…
February 18 was the deadline for submitting proposals. That evening,
I logged in from my vacation in the Florida Keys and found… one proposal from the Trusted Computing Group (TCG). The TCG proposed a slightly modified version of the IF-TNCCS and IF-M protocols that are part of the TNC architecture.
After seeing this, I breathed a sigh of relief. I had been worried
that we might end up with competing NAC standards (like HD DVD and
Blu-Ray), resulting in confusion and delay. We seem to have dodged that
bullet. Since the only proposal was the TCG proposal and the TCG
indicated that it is willing to work with the IETF to resolve any
problems and arrive at a single common standard, all signs point to the
development of a single unified standard supported by TCG and IETF.
Maybe Cisco will even support the standard, since they were the only
major vendor holding back from supporting the TNC standards.
A bit of disclosure is probably in order here. I am co-chair of both
the TCG TNC Work Group and the IETF NEA Working Group and also a
co-editor on one of the TCG proposals to the IETF. Wouldn’t you think
that would put me in the know and keep me from worrying about the
outcome? Nope. I spent February 18 worrying, like Bill Belichick of the
Patriots on Super Bowl Sunday! Would someone else make a proposal? Who?
Even now, nothing is completely certain. Standards are a complicated
and delicate process of building consensus. It looks like we’re headed
toward consensus on these specifications but it won’t be completely
certainly until years later.