On Sat, 6 Oct 2001, Dr S N Henson wrote:

> I've been meaning to look through the pkix CRL stuff to see how this lot
> works in practice. The last time I looked I wasn't sure what (if
> anything) restricted the CRL signing certificates path when compared to
> the CA certificate.

I'm not quite sure either, to be honest, which is why I don't like the
separate certificates approach. On the other hand, I'm told that the
financial institutions, for whatever reason, *like* having separate certs
(presumably so that different people can be given access to different
private keys).

> For example if you trust two root CAs A and B you
> don't want B to be able to sign CRLs for A without some authorisation
> from A (e.g. a CRL signing certificate chaining to A).

In  my particular case, we have Root CA certificates that have the same
identification (i.e. "cn=Harald's Bait Shop and CA"), but different
keys and different keyUsage fields, a slightly simpler case I think.
I'm told that this is a "standard feature" of one of the popular PKI
products out there.

I too will have to think about this some more, I guess. :-)

-- 
Harald Koch <[EMAIL PROTECTED]>

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