Re: You're on SecurityFocus.com for the cleartext passwords.

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Benjamin Adida <ben(at)mit(dot)edu>
Cc: Vince Vielhaber <vev(at)michvhf(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, The Hermit Hacker <scrappy(at)hub(dot)org>, "Sverre H(dot) Huseby" <sverrehu(at)online(dot)no>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: You're on SecurityFocus.com for the cleartext passwords.
Date: 2000-05-06 18:54:52
Message-ID: 200005061854.OAA20685@candle.pha.pa.us
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> on 5/6/00 2:40 PM, Vince Vielhaber at vev(at)michvhf(dot)com wrote:
>
> > Why should this work? Because the next time the client tries to connect
> > it will be given a different salt. But why twice? It seems that once
> > would be enough since it's a random salt to begin with and the client
> > should never be getting that salt twice.
>
> No, the reason why you would have "two" hashes is so that the server doesn't
> have to store the cleartext password. The server stores an already-hashed
> version of the password, so the client must hash the cleartext twice, once
> with a long-term salt, once with a random, one-time salt.
>

Yeah, right!

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Bruce Momjian | http://www.op.net/~candle
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