| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Ryan Lambert <ryan(at)rustprooflabs(dot)com> |
| Cc: | Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Joe Conway <mail(at)joeconway(dot)com>, Antonin Houska <ah(at)cybertec(dot)at>, Stephen Frost <sfrost(at)snowman(dot)net>, 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: | 2019-07-12 18:45:55 |
| Message-ID: | 20190712184555.udtggn42khjmqu4c@momjian.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Fri, Jul 12, 2019 at 12:41:19PM -0600, Ryan Lambert wrote:
> >> I vote for AES 256 rather than 128.
> >
> > Why? This page seems to think 128 is sufficient:
> >
> > https://crypto.stackexchange.com/questions/20/
> what-are-the-practical-differences-between-256-bit-192-bit-and-128-bit-aes-enc
> >
> > For practical purposes, 128-bit keys are sufficient to ensure
> security.
> > The larger key sizes exist mostly to satisfy some US military
> > regulations which call for the existence of several distinct
> "security
> > levels", regardless of whether breaking the lowest level is already
> far
> > beyond existing technology.
>
> After researching AES key sizes a bit more my vote is (surprisingly?) for
> AES-128. My reasoning is about security, I did not consider performance
> impacts in my decision.
Thank you for this exhaustive research.
--
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. +
+ Ancient Roman grave inscription +
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tomas Vondra | 2019-07-12 23:26:51 | Re: Check-out mutable functions in check constraints |
| Previous Message | Ryan Lambert | 2019-07-12 18:41:19 | Re: [Proposal] Table-level Transparent Data Encryption (TDE) and Key Management Service (KMS) |