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.   This is a re-review.  Following the last review, changes were made to the security considerations section to highlight a disconnect with the referenced security considerations in RFC 3435.  This seems sufficient to me (though there is a typo in the new text – “securuty”).