Re: Proposal: Support custom authentication methods using hooks

> Yes, really, it's a known-broken system which suffers from such an old
> and well known attack that it's been given a name: pass-the-hash. As
> was discussed on this thread even, just the fact that it's not trivial
> to break on the wire doesn't make it not-broken, particularly when we
> use the username (which is rather commonly the same one used across
> multiple systems..) as the salt. Worse, md5 isn't exactly the pinnacle

I am not a big fan of md5 auth but saying that md5 auth uses username
as the salt is oversimplified. The md5 hashed password shored in
pg_shadow is created as md5(password + username). But the md5 hashed
password flying over wire is using a random salt like md5(md5(password
+ username) + random_salt).

Best reagards,
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese:http://www.sraoss.co.jp