Why?

Ekr

On Oct 3, 2010, at 8:54, Joe Abley <jab...@hopcount.ca> wrote:

> 
> On 2010-10-03, at 07:59, Tony Finch wrote:
> 
>> On 3 Oct 2010, at 08:27, Jakob Schlyter <ja...@kirei.se> wrote:
>>> On 1 okt 2010, at 20.59, Tony Finch wrote:
>>>> 
>>>> Right, so it's aimed at human consumption rather than automatic tools?
>>> 
>>> Given the historical information (together with old DNSKEY), you could 
>>> build a trust anchor history zone.
>> 
>> Not really, since you need the private key of the old TA to sign the public 
>> key of the new one to get a cryptographic proof of the history. Without that 
>> it is just a third party attestation, which is rather weaker.
> 
> As has been expressed many times, old keys are not trustworthy and hence 
> their signatures have no value.
> 
> 
> Joe
> 
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