Re: Is md5 really more secure than crypt? - Mailing list pgsql-general

From Tom Lane
Subject Re: Is md5 really more secure than crypt?
Date
Msg-id 7407.1024074879@sss.pgh.pa.us
Whole thread Raw
In response to Is md5 really more secure than crypt?  ("murphy pope" <pope_murphy@hotmail.com>)
Responses Re: Is md5 really more secure than crypt?  (Bruce Momjian <pgman@candle.pha.pa.us>)
List pgsql-general
"murphy pope" <pope_murphy@hotmail.com> writes:
> But, if can peek at the server's user/password checksum (in the pg_pwd
> file), I can connect to a server, get the server's salt, and combine it with
> the stolen checksum, arriving at the checksum expected by the server.

Hmm.  The double hashing scheme was supposed to prevent that attack,
but looking at the code I think maybe it got implemented incorrectly.
We should go back and look at the design discussions to see if this
wasn't foreseen.

            regards, tom lane

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