| From: | Antonin Houska <ah(at)cybertec(dot)at> |
|---|---|
| To: | Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | Stephen Frost <sfrost(at)snowman(dot)net>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Sehrope Sarkuni <sehrope(at)jackdb(dot)com>, Joe Conway <mail(at)joeconway(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, "Moon, Insung" <Moon_Insung_i3(at)lab(dot)ntt(dot)co(dot)jp>, Ibrar Ahmed <ibrar(dot)ahmad(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [Proposal] Table-level Transparent Data Encryption (TDE) and Key Management Service (KMS) |
| Date: | 2019-08-17 06:16:06 |
| Message-ID: | 53298.1566022566@antos |
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| Lists: | pgsql-hackers |
Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> On Thu, Aug 15, 2019 at 09:01:05PM -0400, Stephen Frost wrote:
> > * Bruce Momjian (bruce(at)momjian(dot)us) wrote:
> > > Why would it not be simpler to have the cluster_passphrase_command run
> > > whatever command-line program it wants? If you don't want to use a
> > > shell command, create an executable and call that.
> >
> > Having direct integration with a KMS would certainly be valuable, and I
> > don't see a reason to deny users that option if someone would like to
> > spend time implementing it- in addition to a simpler mechanism such as a
> > passphrase command, which I believe is what was being suggested here.
>
> OK, I am just trying to see why we would not use the
> cluster_passphrase_command-like interface to do that.
One problem that occurs to me is that PG may need to send some sort of
credentials to the KMS. If it runs a separate process to execute the command,
it needs to pass those credentials to it. Whether it does so via parameters or
environment variables, both can be seen by other users.
--
Antonin Houska
Web: https://www.cybertec-postgresql.com
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