Hi, I have reviewed this document as part of the security directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the security area directors. Document editors and WG chairs should treat these comments just like any other last call comments. I only had time to skim through the document but overall, the document is well written and appears to appropriately address the security concerns.  I suggest that the document is READY for publication. Just as a "ni" (it's less than a "nit" ;-), should the list of prohibited cipher suites become an IANA registry?  Doing so would make it easier to authoritatively add to it, and others may be interested in referencing the list. Best regards, Chris