Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264320AbTH1XCk (ORCPT ); Thu, 28 Aug 2003 19:02:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264360AbTH1XCk (ORCPT ); Thu, 28 Aug 2003 19:02:40 -0400 Received: from mail.jlokier.co.uk ([81.29.64.88]:55687 "EHLO mail.jlokier.co.uk") by vger.kernel.org with ESMTP id S264320AbTH1XCj (ORCPT ); Thu, 28 Aug 2003 19:02:39 -0400 Date: Fri, 29 Aug 2003 00:02:33 +0100 From: Jamie Lokier To: Bernd Eckenfels Cc: linux-kernel@vger.kernel.org Subject: Re: Lockless file reading Message-ID: <20030828230233.GD10035@mail.jlokier.co.uk> References: <200308281726.SAA24033@mauve.demon.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 815 Lines: 19 Bernd Eckenfels wrote: > In article <200308281726.SAA24033@mauve.demon.co.uk> you wrote: > > I'd be really surprised if there were that many pictures in the world. > > Well, this is about probabilty. It does not mean that you need 2^64 > pictures, neighter does it mean you have a collision within 2^64 pictures. It just means that if you have a collision with many fewer pictures than that, it's such an unlikely event that a flaw in the program calculating the hash, or a flaw in the hash algorithm itself, is more likely than it being a random collision. -- Jamie - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/