Re: storing an explicit nonce

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Stephen Frost <sfrost(at)snowman(dot)net>
Cc: Ants Aasma <ants(at)cybertec(dot)at>, Bruce Momjian <bruce(at)momjian(dot)us>, Sasasu <i(at)sasa(dot)su>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: storing an explicit nonce
Date: 2021-10-05 17:24:47
Message-ID: CA+TgmobahC=yMRv+Z4wha+39w1k8BhpV_djxupCo5AAFNQp+Ag@mail.gmail.com
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On Mon, Oct 4, 2021 at 10:00 PM Stephen Frost <sfrost(at)snowman(dot)net> wrote:
> I do want to point out, as I think I did when we discussed this but want
> to be sure it's also captured here- I don't think that temporary file
> access should be forced to be block-oriented when it's naturally (in
> very many cases) sequential. To that point, I'm thinking that we need a
> temp file access API through which various systems work that's
> sequential and therefore relatively similar to the existing glibc, et
> al, APIs, but by going through our own internal API (which more
> consistently works with the glibc APIs and provides better error
> reporting in the event of issues, etc) we can then extend it to work as
> an encrypted stream instead.

Regarding this, would it use block-oriented access on the backend?

I agree that we need a better API layer through which all filesystem
access is routed. One of the notable weaknesses of the Cybertec patch
is that it has too large a code footprint,

--
Robert Haas
EDB: http://www.enterprisedb.com

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