Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261640AbVCUHsE (ORCPT ); Mon, 21 Mar 2005 02:48:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261644AbVCUHsE (ORCPT ); Mon, 21 Mar 2005 02:48:04 -0500 Received: from thunk.org ([69.25.196.29]:56038 "EHLO thunker.thunk.org") by vger.kernel.org with ESMTP id S261640AbVCUHsC (ORCPT ); Mon, 21 Mar 2005 02:48:02 -0500 Date: Mon, 21 Mar 2005 02:17:25 -0500 From: "Theodore Ts'o" To: Jan Engelhardt Cc: Karim Yaghmour , linux-kernel@vger.kernel.org Subject: Re: Relayfs question Message-ID: <20050321071725.GB26839@thunk.org> Mail-Followup-To: Theodore Ts'o , Jan Engelhardt , Karim Yaghmour , linux-kernel@vger.kernel.org References: <423C78E8.3040200@ev-en.org> <423C913B.6000307@opersys.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.6+20040907i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 822 Lines: 19 On Sat, Mar 19, 2005 at 10:08:13PM +0100, Jan Engelhardt wrote: > > Well, what about things like urandom? It also moves "a lot" of data and does > nothing else. > If you're using urandom to move "a lot" of data, you're using it wrong. That's not what it is supposed to be for; I can't think of a valid use of /dev/urandom that would use more than, say, 256 bytes (2048 bits), and most sanely written users of /dev/urandom only need 16 bytes (i.e., 128 bits). Anything more than that, and you should be using a userpsace PRNG or CRNG, and **not** /dev/urandom. - Ted - 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/