| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Stephen Frost <sfrost(at)snowman(dot)net> |
| Cc: | Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Antonin Houska <ah(at)cybertec(dot)at>, 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: | 2019-08-24 16:05:44 |
| Message-ID: | 20190824160544.GB30973@momjian.us |
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| Lists: | pgsql-hackers |
On Fri, Aug 23, 2019 at 10:04:13PM -0400, Stephen Frost wrote:
> > Well, I think they might do that to reduce encryption overhead. I think
> > tests have shown that is not an issue, but we will need to test further.
>
> I seriously doubt that's why and I don't think there's actually much
> value in trying to figure out the "why" here- the question is, do those
> systems answer the check-box requirement that was brought up on the call
> as the justification for this feature? If so, then clearly not
> everything is required to be encrypted and we shouldn't be stressing
> over trying to do that.
We will stress in trying _not_ to encrypt everything.
> > I am not sure of the downside of encrypting everything, since it leaks
> > the least information and has a minimal user API and code impact. What
> > is the value of encrypting only the user rows? Better key control?
>
> Yes, better key control, and better user API, and avoiding having an
Uh, there is no user API for all-cluster encryption except for the
administrator.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ As you are, so once was I. As I am, so you will be. +
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