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From: "Lorenzo Hernández García-Hierro" <lorenzo@gnu.org>
To: Stephen Hemminger <shemminger@osdl.org>
Cc: netdev@oss.sgi.com,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] OpenBSD Networking-related randomization port
Date: Fri, 28 Jan 2005 19:54:36 +0100	[thread overview]
Message-ID: <1106938476.3864.15.camel@localhost.localdomain> (raw)
In-Reply-To: <20050128101825.388990a0@dxpl.pdx.osdl.net>

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El vie, 28-01-2005 a las 10:18 -0800, Stephen Hemminger escribió:
> This is a very transitory effect, it works only because your machine
> is then different from the typical Linux machine; therefore the scanner
> will go on to the next obvious ones. But if this gets incorporated widely
> then the rarity factor goes away and this defense becomes useless.

I would prefer to say that such "rarity factor" comes directly from the
"rarity factor" given by the PRNG.

So, we should take "rarity factor" as the PRNG seed entropy and not as a
predictable value (not in a reasonable time manner, which is the goal of
most crypto-related developments, to make as much difficult as possible
to cause an information leak, and if such leak happens, ensure that the
information is no longer needed, private, confidential, critical,
whateverelse) (AFAIK).

So, there's no point at that claim.

Cheers,
-- 
Lorenzo Hernández García-Hierro <lorenzo@gnu.org> 
[1024D/6F2B2DEC] & [2048g/9AE91A22][http://tuxedo-es.org]

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  reply	other threads:[~2005-01-28 18:56 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-01-28 17:17 [PATCH] OpenBSD Networking-related randomization port Lorenzo Hernández García-Hierro
2005-01-28 17:40 ` Adrian Bunk
2005-01-28 17:47   ` Lorenzo Hernández García-Hierro
2005-01-28 18:18     ` Stephen Hemminger
2005-01-28 18:54       ` Lorenzo Hernández García-Hierro [this message]
2005-01-28 19:09     ` Adrian Bunk
2005-01-28 18:02 ` Stephen Hemminger
2005-01-28 18:31   ` Lorenzo Hernández García-Hierro
2005-01-28 18:52     ` Stephen Hemminger
2005-01-28 18:58       ` Lorenzo Hernández García-Hierro
2005-01-28 20:34       ` Lorenzo Hernández García-Hierro
2005-01-28 20:45         ` David S. Miller
2005-01-28 21:34           ` Stephen Hemminger
2005-01-28 21:45             ` David S. Miller
2005-01-29  6:59             ` Andi Kleen
2005-01-28 20:47         ` Arjan van de Ven
2005-01-28 22:12           ` Lorenzo Hernández García-Hierro
2005-01-29  8:04             ` Arjan van de Ven
2005-01-29  8:05             ` Arjan van de Ven
2005-01-29  9:15           ` Valdis.Kletnieks
2005-01-31 16:50             ` Adrian Bunk
2005-01-31 17:23               ` Lorenzo Hernández García-Hierro
2005-01-31 20:11                 ` Ingo Molnar
2005-01-31 23:27                   ` linux
2005-02-12 22:29                     ` Andi Kleen
2005-02-12 23:25                       ` linux
2005-02-13  0:18                         ` Roland Dreier
2005-02-13  1:41                           ` linux
2005-02-02 17:17                   ` linux
2005-02-02 17:38                     ` Lorenzo Hernández García-Hierro
2005-02-03 19:51                       ` Stephen Hemminger
2005-02-03 20:14                         ` Lennert Buytenhek
2005-01-31 19:42               ` Valdis.Kletnieks
2005-01-31 20:03                 ` Lorenzo Hernández García-Hierro
2005-02-01 23:22                   ` Matt Mackall
2005-01-28 18:04 ` Jörn Engel
2005-01-28 18:07 ` Arjan van de Ven
2005-01-28 18:36   ` Lorenzo Hernández García-Hierro
2005-02-01 14:54   ` Bill Davidsen
2005-01-28 19:24 ` Horst von Brand
2005-01-29 18:16 ` Florian Weimer
2005-01-28 19:24 Hank Leininger
2005-01-29  7:24 linux

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