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Re: [ietf-dkim] DKIM Key Sizes

Eliot Lear <lear@cisco.com> Fri, 28 October 2016 12:38 UTC

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To: "Rolf E. Sonneveld" <R.E.Sonneveld@sonnection.nl>, Jon Callas <jon@callas.org>, Peter Goldstein <peter@valimail.com>
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From: Eliot Lear <lear@cisco.com>
Message-ID: <1a80d63a-4539-1fc4-9e5a-47a3d92ce89e@cisco.com>
Date: Fri, 28 Oct 2016 14:37:48 +0200
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Cc: ietf-dkim@mipassoc.org
Subject: Re: [ietf-dkim] DKIM Key Sizes
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Hi Rolf,


On 10/28/16 2:28 PM, Rolf E. Sonneveld wrote:

> An end user often cannot choose to sign or not to sign. The end user
> is dependent on what the ESP or the employers organization configures.
> Well, of course one could change ESP... But changing employer is quite
> a step ;-)

The question then becomes this: what is the purpose of that signature? 
How long should accountability last?  There is also the minor matter of
the operational complexity of rotating keys.

Eliot



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