I am the designated ARTART reviewer for this draft. This is a re-review of -06 following my review of -04.

Status: Ready with Nits

Thanks for addressing basically all of my comments from my earlier review. This is ready to go, although I spotted a few more instances of the overuse of "octets" in Section 2.1 that result in some awkward wording. Examples and suggested replacements:

"...while the extnValue is the encoded value of Nonce octets" -> "...while the extnValue is the encoded value of the nonce"

"...then the length of the Nonce octets MUST be..." -> "...then the length of the nonce MUST be..."

"...MUST use a minimum length of 32 octets for Nonce octets in the Nonce extension." -> "...MUST use a minimum length of 32 octets for the nonce in the nonce extension."

"...that has a Nonce octets with a length..." -> "...that has a nonce with a length..."

"The value of the Nonce octets MUST be..." -> "The value of the nonce MUST be..."

"