Date: Wed, 15 Mar 2017 23:19:32 -0400
From: Bruce Momjian <bruce@momjian.us>
To: Craig Ringer <craig@2ndquadrant.com>
Cc: Joe Conway <mail@joeconway.com>,
	Michael Paquier <michael.paquier@gmail.com>,
	PostgreSQL mailing lists <pgsql-hackers@postgresql.org>
Subject: Re: Changing references of password encryption to hashing
Message-ID: <20170316031932.GA30261@momjian.us>
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On Mon, Mar 13, 2017 at 04:48:21PM +0800, Craig Ringer wrote:
> On 12 March 2017 at 06:51, Joe Conway <mail@joeconway.com> wrote:
> 
> > My opinion is that the user visible aspects of this should be deprecated
> > and correct syntax provided. But perhaps that is overkill.
> 
> FWIW, in my experience, pretty much nobody understands the pretty
> tangled behaviour of "WITH [ENCRYPTED] PASSWORD", you have to
> understand the fact table of:
> 
> * ENCRYPTED, UNENCRYPTED or neither set
> * password_encryption GUC on or off
> * password begins / doesn't begin with fixed string 'md5'
> 
> to fully know what will happen.
> 
> Then of course, you have to understand how all this interacts with
> pg_hba.conf's 'password' and 'md5' options.
> 
> It's a right mess. Since our catalogs don't keep track of the hash
> separately to the password text and use prefixes instead, and since we
> need compatibility for dumps, it's hard to do a great deal about
> though.

With SCRAM coming in PG 10, is there anything we can do to clean this up
for PG 10?

-- 
  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. +
+                      Ancient Roman grave inscription +


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