| From: | Joe Conway <mail(at)joeconway(dot)com> |
|---|---|
| To: | Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Antonin Houska <ah(at)cybertec(dot)at>, 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: | 2019-06-15 01:37:37 |
| Message-ID: | 063b3017-9273-1931-fbf3-1cc7671a781a@joeconway.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On 6/14/19 6:09 PM, Bruce Momjian wrote:
> On Fri, Jun 14, 2019 at 02:27:17PM -0400, Joe Conway wrote:
>> On 6/13/19 11:07 AM, Bruce Momjian wrote:
>> > In addition, while the 8k blocks would use a block cipher, the WAL would
>> > likely use a stream cipher, and it will be very hard to use multiple
>> > stream ciphers in a single WAL file.
>>
>> I don't understand why we would not just use AES for both.
>
> Uh, AES is an encryption cipher. You can use it with block mode, CBC,
> or stream mode, CTR, GCM; see:
AES is a block cipher, not a stream cipher. Yes you can use it in
different modes, including chained modes (and CBC is what I would pick),
but I assumed you were talking about an actual stream cipher algorithm.
Joe
--
Crunchy Data - http://crunchydata.com
PostgreSQL Support for Secure Enterprises
Consulting, Training, & Open Source Development
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Melanie Plageman | 2019-06-15 01:45:51 | Extracting only the columns needed for a query |
| Previous Message | David Rowley | 2019-06-15 00:25:12 | Re: Custom table AMs need to include heapam.h because of BulkInsertState |