Re: [pcp] Implementation Analysis: strong preference for PCP-specific approach

Margaret Wasserman <margaretw42@gmail.com> Thu, 20 September 2012 10:31 UTC

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From: Margaret Wasserman <margaretw42@gmail.com>
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Date: Thu, 20 Sep 2012 06:31:27 -0400
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References: <tslipbdzzwy.fsf@mit.edu> <74FC8E41-02D8-4BFC-A15F-035FA328DDC1@yegin.org> <70154AB6-F7B5-47B0-B721-811EA5DF9926@lilacglade.org> <97AF094F-ABD8-4B50-80B7-30D8E2F34567@yegin.org>
To: Alper Yegin <alper.yegin@yegin.org>
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Subject: Re: [pcp] Implementation Analysis: strong preference for PCP-specific approach
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Hi Alper,

On Sep 20, 2012, at 4:45 AM, Alper Yegin wrote:
> The major missing piece is the support for EAP re-authentication. It's totally omitted.

See my other message about that.
> 
> Security considerations section is too light on content. Please see PANA's. We need to see a thorough analysis to conclude that the design is complete. For example, there's a mention of DoS resilience, but it's not sufficient. Please refer back to PANA to see how DoS resilience is achieved with EAP lower-layer.
> 
> Also, I don't see the message validity checks (again, see PANA). It's not possible to get a standard state machine w/o that (either in a dedicated section like in RFC 5191, or captured in a distributed way in the document).

Thanks for this feedback.  I will take it into account, as appropriate, depending on how we decide to go forward tomorrow.

Margaret