> From: [email protected] On Behalf Of Erwann ABALEA
> Sent: Thursday, 19 May, 2011 04:20

> Hodie XV Kal. Iun. MMXI, Alex Bergmann scripsit:
<snip: "renew" CA>
> > The only way I found was to give the new Root Certificate the same
> > serial number as the previous one.
> 
> That's forbidden by X.509 standard. And the serial number has nothing
> to do with the SKI/AKI.
> 
There are (at least) two kinds of AuthorityKeyIdentifier. 

AKI=SKI identifies only the parent (CA) key (by hash), 
and is ambiguous if CA gets new cert for same key.

AKI=issuerSerial *does* use parent (CA) serial.



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