On May 13, 2020, at 4:25 PM, Roman Danyliw <r...@cert.org> wrote:
> 
> Hi!
> 
> I conducted my AD review of draft-ietf-emu-eap-session-id-02.  The document 
> is in good shape.  I have largely editorial feedback below that can be 
> handled with IETF LC input.
> 
> (1) Section 1.  Editorial.  COMMENTs often come up in IESG review the it 
> isn't clear up front what exactly is being updated.  I recommend something 
> like ...
> 
> OLD
> We correct that deficiency here.
> NEW
> We correct these deficiencies here by updating [RFC5247] with the Session-Id 
> derivation during fast-authentication exchange for EAP-SIM and EAP-AKA; and 
> defining Session-Id derivation for PEAP.

  Fixed.

> (2) Section 1. Editorial.  Per ..., it would be important to get this 
> resolved with a clearly defined and agreed derivation rules to allow fast re- 
> authentication cases to be used to derive ERP key hierarchy", I'm not sure 
> this additional explanation is needed and this is a run-on sentence from the 
> previous text.

  How about:

The IEEE is defining FILS authentication [FILS], which needs the EAP
Session-Id in order for the EAP Re-authentication Protocol (ERP)
[RFC6696] to work.  It is therefore important to address the existing
deficiencies in the definition of EAP Session-Id.


> (3) Section 2.2.  Editorial.
> 
> OLD
> Similarly for EAP-SIM, it says:
> NEW
> Similarly, for EAP-SIM, [RFC5247] Appendix A says:

  Fixed.

> (4) Section 2.2.  Editorial.  Why not the explicit symmetry in language in 
> EAP-SIM as was used in EAP AKA?
> 
> OLD
> EAP-SIM is defined in [RFC4186].  The EAP-SIM Session-Id is the  ...
> NEW
> EAP-SIM is defined in [RFC4186].  When using full authentication, the EAP-SIM 
> Session-Id is the  ...

 Fixed.
 
> (5) Section 2.2.  Recommend defining RAND1, RAND2 and RAND3 explicitly since 
> RFC4186 only has it in the test vector section.  Perhaps something like:
> 
> "RAND1, RAND2 and RAND3 correspond to the RAND value from the first, second 
> and third GSM triplet respectively."

  Fixed.

> (6) Section 3.  It would be useful to describe the prior work in Security 
> Considerations.  Specifically, "These updates to not modify the Security 
> Considerations outlined in RFC5247."

  Fixed.

  I'll publish a new version shortly.

  Alan DeKok.

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