John Levine wrote:
>> The other alternative to squeezing bits in a DNS record is providing a
>> redirect to another service.
>>     
>
> Sure, but now you have the extra cost of another transaction.  If you're
> going to do that, you might as well invent another q= lookup scheme,
> probably via HTTP, and use it directly.
>   
Right... this is really where I was aiming.
> It seems to me that since DKIM signatures are expected to have short
> lifetimes and to have only moderate value, and that we've established
> quite thoroughly that there is not yet an obvious successor to SHA-1,
> it would be OK simply to note that we'll need something more secure in
> the future and leave it at that.

How many times do you want to do this?!

Eliot
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