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> On Mar 27, 2023, at 6:40 PM, Scott Kitterman <ietf-d...@kitterman.com> wrote:
> 
> On Monday, March 27, 2023 12:42:25 PM EDT Laura Atkins wrote:
>>>> On 27 Mar 2023, at 16:46, Scott Kitterman <ietf-d...@kitterman.com> wrote:
>>> 
>>> On March 27, 2023 3:10:40 PM UTC, Laura Atkins <la...@wordtothewise.com> 
> wrote:
>>>>> On 26 Mar 2023, at 11:13, Murray S. Kucherawy <superu...@gmail.com>
>>>>> wrote:
>>>>> 
>>>>> On Sat, Mar 25, 2023 at 10:29 AM Michael Thomas <m...@mtcc.com 
> <mailto:m...@mtcc.com>> wrote:
>>>>>> On 3/24/23 6:19 PM, Barry Leiba wrote:
>>>>>>> I don't agree with the premise.  I think what was tried and didn't
>>>>>>> work should be documented in the result that the working group comes
>>>>>>> out with, but not in the problem statement.
>>>>>> 
>>>>>> There isn't a place in the charter/milestones for that.
>>>>> 
>>>>> The charter identifies these possible outputs in some combination:
>>>>> 
>>>>> (1) a clear problem statement;
>>>>> 
>>>>> (2) one or more protocol update document(s);
>>>>> 
>>>>> (3) a statement of some kind that the WG determined no feasible protocol
>>>>> solution exists (and, one would hope, how it reached this conclusion);
>>>>> 
>>>>> (4) an update to current DKIM operational advice with respect to the
>>>>> stated problem.
>>>>> 
>>>>> The only constraint in the charter is that (2) and (3) are mutually
>>>>> exclusive.>> 
>>>> Agreed with all of this.
>>>> 
>>>>> I believe that a history of what techniques were previously tried and
>>>>> failed could arguably go into any of them.  The charter is neither
>>>>> prescriptive or proscriptive on this point.>> 
>>>> It seems to me a history of what did work / didn’t will go into document
>>>> 4 or the reasoning for document 3. My current preference is for the
>>>> discussion to not be in the problem statement. My reasoning is that
>>>> there will be discussion about what didn’t work and why it didn’t work.
>>>> I expect that there will be quite a bit of back and forth to capture the
>>>> details of why something didn’t work - including the adaptations that
>>>> the attackers made to the changes. This, to my mind, is the job of the
>>>> working group: to look at the current status, discuss where the holes
>>>> are and if they are protocol holes or if they are best practice /
>>>> implementation holes.
>>>> 
>>>> On a more practical point, we have a month to finalize the problem
>>>> statement. No one has proposed language to include in the problem
>>>> statement about what has worked and what hasn’t worked. Given the
>>>> current state of the group, I simply don’t think we have the time to put
>>>> this into the problem statement and get it out in time.
>>>> 
>>>> I do think we have the time and space to discuss techniques after the
>>>> problem statement is done and include it in one of the WG output
>>>> documents.> 
>>> So far, unless I was napping when it happened, we don't have a working
>>> group draft of the problem statement.
>> We have two documents that are up for debate as the working group draft.
>> Anyone else is welcome to provide an alternative for consideration as well
>> - as Dave did and that is now being wrapped into Wei’s draft.
>>> Personally, I'm waiting for draft-chuang-dkim-replay-problem-02 before
>>> investing any more time on the problem statement.  I think it would make
>>> sense for the group to do a quick assessment of it, when it is available
>>> and see if we want to adopt it as a working group draft (I strongly
>>> suspect we do).
>> That’s my feeling as well, particularly given no one else is stepping up to
>> write a draft of the problem statement on behalf of the working group. If
>> someone does have an alternative in progress please let me know.
> 
> Do you plan adopt it as a working group draft?  That's a critical step in the 
> process.  Anything before that step needn't reflect anything other than the 
> author's opinion (and that's optional).

In the absence of a competing draft and if that’s the consensus of the group, 
yes. 

Laura

> 
> Scott K
> 
> 
> 
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