Skip site navigation (1) Skip section navigation (2)

Re: Postgresql security checks

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Thom Brown <thom(at)linux(dot)com>
Cc: Josh Kupershmidt <schmiddy(at)gmail(dot)com>, Machiel Richards <machielr(at)rdc(dot)co(dot)za>, "pgsql-novice(at)postgresql(dot)org" <pgsql-novice(at)postgresql(dot)org>
Subject: Re: Postgresql security checks
Date: 2010-09-07 23:26:05
Message-ID: 201009072326.o87NQ5l03271@momjian.us (view raw or flat)
Thread:
Lists: pgsql-novice
Thom Brown wrote:
> > It is documented here:
> >
> > ? ? ? ?http://www.postgresql.org/docs/9.0/static/encryption-options.html
> > ? ? ? ?17.7. Encryption Options
> > ? ? ? ?Encrypting Passwords Across A Network
> >
> > ? ? ? ? ? ?The MD5 authentication method double-encrypts the password on the
> > ? ? ? ?client before sending it to the server. It first MD5-encrypts it based
> > ? ? ? ?on the user name, and then encrypts it based on a random salt sent by
> > ? ? ? ?the server when the database connection was made. It is this
> > ? ? ? ?double-encrypted value that is sent over the network to the server.
> > ? ? ? ?Double-encryption not only prevents the password from being discovered,
> > ? ? ? ?it also prevents another connection from using the same encrypted
> > ? ? ? ?password to connect to the database server at a later time.
> 
> The difference with that is that it's talking about how passwords are
> protected by a form of encryption when sent across a connection rather
> than how they're stored in a database.

Yes, you are right.  Should this be documented?  Where?

-- 
  Bruce Momjian  <bruce(at)momjian(dot)us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +

In response to

Responses

pgsql-novice by date

Next:From: Bruce MomjianDate: 2010-09-08 01:56:00
Subject: Re: Raw Device Support
Previous:From: Thom BrownDate: 2010-09-07 23:13:53
Subject: Re: Postgresql security checks

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group