Last Call Review of draft-ietf-hip-dex-06
review-ietf-hip-dex-06-opsdir-lc-wu-2018-02-23-00

Request Review of draft-ietf-hip-dex
Requested rev. no specific revision
Type Last Call Review
Team Ops Directorate (opsdir)
Deadline 2018-02-26
Requested 2018-02-12
Other Reviews Genart Last Call review of -06 by Francis Dupont
Secdir Last Call review of -06 by David Waltermire
Review State Completed
Reviewer Qin Wu
Review review-ietf-hip-dex-06-opsdir-lc-wu-2018-02-23
Posted at https://mailarchive.ietf.org/arch/msg/ops-dir/UvJhhSTVhd3Q4to7a_hhQeeHw2U
Reviewed rev. 06
Review result Ready
Draft last updated 2018-02-23
Review completed: 2018-02-23

Review
review-ietf-hip-dex-06-opsdir-lc-wu-2018-02-23

Summary: 
This document defines the Host Identity Protocol Diet EXchange (HIP
   DEX) protocol for constrained devices. The draft is well written. I believe it is ready for publication.
Major issue: None
Minor issue: Editorial
1.It is not clear how fine-grained policy control defined in IKEv2 is different from policy control defined in HIP DEX protocol? In the draft, local policies are mentioned many times, however it is not clear what local policy for HIP DEX Protocol looks like? Is it possbile to carry policy control parameters(e.g., ACL parameter) in the HIP DEX protocol message? Would it be great to provide example to clarify this.
2. Is Nonce I same as radom value #I?
3. Is puzzle difficulty K same as #K used in the HIP R1 described in section 7?
4. Is puzzle difficulty K same as low-order #K bits of the RHASH? If the answer is yes, please make the term and symbol used in the draft consistent.