Hello, 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. Summary: Ready I have no particular secdir-related comment for this document. The "Security Considerations" section is well documented and understandable. Going further is only possible by a crypto expert, which I'm not. Regards, Vincent