Hello, all.  We have a small, low security client for which we are doing
an installation of OpenCA-1.0.2.  It is actually an upgrade from 0.9.2
and a transfer to new equipment.  We have already separated the RA and
CA.  The would now like to separate the pub interface from the RA.

To avoid having two complete sets of node transfers, I thought we would
try using a single shared database and wanted to share my thoughts about
both security and how to do this to see if I am making any dumb mistakes
with this approach.

The CA and RA are normally left powered down.  This is why they would
like to separate the Pub - for automated CRL fetching via http as well
as for the ease of having some access to the system without having to
start up the CA or RA.

I was thus thinking of storing a single instance of the database on the
pub server.  My first thought was this is security madness.  Then I
realized, there is nothing in the database that is not already exposed
by the pub interface - keys, certs, crls, reqs - all are made available
via pub.  Thus, there is no security compromise.

FIRST QUESTION:
Is this understanding about no security compromise by putting the shared
database on the pub server correct?

SECOND QUESTION:
Is it correct to assume that a shared database eliminates the need for
data transfer via the node interface?

THIRD QUESTION:
Assuming #2 is true, is it correct to assume I still need to install a
node on the CA for utility functions like backup, cleanup, rebuild
chain, etc.?

FOURTH QUESTION:
Do I need a node on the other interfaces even with a shared database?
For example, the restore procedure on the node not only initializes and
restores the database but also rebuilds openssl's database and next
serial number.  How does one do this on the pub and RA interfaces if
there is only a node on the CA? Is it necessary? What about rebuilding
the CA chain? Do I need to manually copy in the CA cert and hash link to
the RA and pub servers?

PROCEDURE:
I'm assuming I do the following:
1) Setup the database skeleton on the public server
2) Install the CA and CA Node (make install-offline) pointing the
database to the database on the public server.
3) Initialize and restore the database and then rebuild the openssl
database through the CA node.
4) Install the RA (make install-ra) pointing the database to the
database on the public server.
5) Manually copy the regular files in the CA's crypto/cacerts directory
to the RA's crypto/cacerts directory.
6) Manually copy the files other than Makefile from the CA's
crypto/chain directory to the RA's crypto/chain directory.
7) Install the pub interface (make install-pub) pointing the database to
localhost.
8) Manually copy the regular files in the CA's crypto/cacerts directory
to pub's crypto/cacerts directory.
9) Manually copy the files other than Makefile from the CA's
crypto/chain directory to pub's crypto/chain directory.
10) Stand back and watch it all magically work as I create requests in
pub, approve them in the RA, issue them in the CA, retrieve them from
either RA or pub and all without doing a node transfer.

FINAL QUESTION:
Is this procedure and expected outcome correct?

Thanks - John
-- 
John A. Sullivan III
Open Source Development Corporation
+1 207-985-7880
jsulli...@opensourcedevel.com

http://www.spiritualoutreach.com
Making Christianity intelligible to secular society


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