|From:||Bruce Momjian <bruce(at)momjian(dot)us>|
|Cc:||Masahiko Sawada <masahiko(dot)sawada(at)2ndquadrant(dot)com>|
|Subject:||Re: Proposed patch for key managment|
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On Wed, Dec 2, 2020 at 04:38:14PM -0500, Bruce Momjian wrote:
> Attached is a patch for key management, which will eventually be part of
> cluster file encryption (CFE), called TDE (Transparent Data Encryption)
> by Oracle. It is an update of Masahiko Sawada's patch from July 31:
> Sawada-san did all the hard work, and I just redirected the patch. The
> general outline of this CFE feature can be seen here:
> The currently planned progression for this feature is to allow secure
> retrieval of key encryption keys (KEK) outside of the database, then use
> those to encrypt data keys that encrypt heap/index/tmpfile files.
> If most people approve of this general approach, and the design
> decisions made, I would like to apply this in the next few weeks, but
> this brings complications. The syntax added by this commit might not
> provide a useful feature until PG 15, so how do we hide it from users.
> I was thinking of not applying the doc changes (or commenting them out)
> and commenting out the --help output.
I am getting close to applying these patches, probably this week. The
patches are cumulative:
I do have a few questions:
Why is KmgrShmemData a struct, when it only has a single member? Are
all shared memory areas structs?
Should pg_altercpass be using fsync's for directory renames?
Can anyone test this on Windows, particularly -R handling?
What testing infrastructure should this have?
There are a few shell script I should include to show how to create
commands. Where should they be stored? /contrib module?
Are people okay with having the feature enabled, but invisible
since the docs and --help output are missing? When we enable
ssl_passphrase_command to prompt from the terminal, some of the
command-line options will be useful.
Do people like the command-letter choices?
I called the alter passphrase utility pg_altercpass. I could
have called it pg_clusterpass, but I wanted to highlight it is
only for changing the passphrase, not for creating them.
The usefulness of a cup is in its emptiness, Bruce Lee
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