On Thu, Jul 25, 2019 at 01:18:44PM -0400, Bruce Momjian wrote:
> > Key Management
> > ==============
> > We will use 3-tier key architecture as Joe proposed.
> >
> > 1. A master key encryption key (KEK): this is the ley supplied by the
> > database admin using something akin to ssl_passphrase_command
> >
> > 2. A master data encryption key (MDEK): this is a generated key using a
> > cryptographically secure pseudo-random number generator. It is
> > encrypted using the KEK, probably with Key Wrap (KW):
> > or maybe better Key Wrap with Padding (KWP):
> >
> > 3a. Per table data encryption keys (TDEK): use MDEK and HKDF to generate
> > table specific keys.
>
> What is the value of a per-table encryption key? How is HKDF derived?
> Are we still unclear if the 68GB limit is per encryption key or per
> encryption key/IV combination?
Oh, I see you got this from Joe Conway's email. Let me reply to that
now. (I am obviously having problems keeping this thread in my head as
well.)
--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ As you are, so once was I. As I am, so you will be. +
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