| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Stephen Frost <sfrost(at)snowman(dot)net> |
| Cc: | Sasasu <i(at)sasa(dot)su>, Robert Haas <robertmhaas(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: XTS cipher mode for cluster file encryption |
| Date: | 2021-10-25 20:06:50 |
| Message-ID: | 20211025200650.GA15874@momjian.us |
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| Lists: | pgsql-hackers |
On Mon, Oct 25, 2021 at 11:58:14AM -0400, Stephen Frost wrote:
> As for the specific encryption method to use, using CTR would be simpler
> as it doesn't require access to be block-based, though we would need to
> make sure to not re-use the IV across any of the temporary files being
> created (potentially concurrently). Probably not that hard to do but
> just something to make sure we do. Of course, if we arrange for
> block-based access then we could use XTS or perhaps GCM/GCM-SIV if we
> wanted to.
Agreed on all points.
--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com
If only the physical world exists, free will is an illusion.
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