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From: Bruce Momjian <[email protected]>
To: Stephen Frost <[email protected]>
Cc: Sasasu <[email protected]>
Cc: Robert Haas <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Subject: Re: XTS cipher mode for cluster file encryption
Date: Mon, 25 Oct 2021 16:06:50 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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	<[email protected]>
	<[email protected]>
	<[email protected]>
	<[email protected]>

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  <[email protected]>        https://momjian.us
  EDB                                      https://enterprisedb.com

  If only the physical world exists, free will is an illusion.






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