From: | "Naoko Reeves" <naoko(at)lawlogix(dot)com> |
---|---|
To: | "Merlin Moncure" <mmoncure(at)gmail(dot)com> |
Cc: | <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: Where do you store key for encryption |
Date: | 2009-11-18 04:00:32 |
Message-ID: | 076DC33A3D38CE4BBC64D35DDD9DE70C098DA73E@mse4be2.mse4.exchange.ms |
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Thread: | |
Lists: | pgsql-general |
Got it.
Thank you very much for your advice.
-----Original Message-----
From: Merlin Moncure [mailto:mmoncure(at)gmail(dot)com]
Sent: Tuesday, November 17, 2009 8:54 PM
To: Naoko Reeves
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: [GENERAL] Where do you store key for encryption
On Tue, Nov 17, 2009 at 10:12 PM, Naoko Reeves <naoko(at)lawlogix(dot)com>
wrote:
> Hi,
>
> We have web application and encrypt PII columns. We use
encrypt/decrypt
> function for this.
>
> Currently we hard coded the key in postgresql function which I am not
sure
> of it.
>
> I did google it and people suggest that it needed to be stored in
physically
> isolated location (storing decryption key on the same server as the
data is
> kind of like writing your PIN on your ATM card).
Key management is a complicated topic, but I can tell you this for
sure: storing the key in the function is one of the worst places to do
it :-) Any user can pull down the entire pg_proc table and see all
your functions! (this is somewhat fixable, but It's still not the
right place IMO).
merlin
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