Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932277AbWCFNaj (ORCPT ); Mon, 6 Mar 2006 08:30:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751303AbWCFNai (ORCPT ); Mon, 6 Mar 2006 08:30:38 -0500 Received: from mailgate1.uni-kl.de ([131.246.120.5]:63635 "EHLO mailgate1.uni-kl.de") by vger.kernel.org with ESMTP id S1751190AbWCFNai (ORCPT ); Mon, 6 Mar 2006 08:30:38 -0500 Date: Mon, 6 Mar 2006 14:05:52 +0100 From: Eduard Bloch To: "Mario 'BitKoenig' Holbe" Cc: linux-kernel@vger.kernel.org Subject: Re: [RFC] Encrypting file system Message-ID: <20060306130552.GA2121@debian> References: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1476 Lines: 33 #include * Mario 'BitKoenig' Holbe [Mon, Mar 06 2006, 01:17:53PM]: > V Bhanu Chandra wrote: > > I am thinking of designing and implementing a new native encrypting > > file system for the linux kernel as a part of a student / research > > project. Unlike dm-crypt/loop-AES/cryptoloop, I plan to target > > slightly more ambitious user specifications such as: per-file random > > secret encryption keys which are in-turn encrypted using the public > > keys of all users having access to that filesystem object (a copy > ... > > Any comments / guidance / suggestions are most welcome and solicitated. > > Since you are talking about an encrypting filesystems but only > referencing encrypting block devices... Have you had a look at encfs > and/or StegFS already? > At least one of the encrypting block devices you mentioned (I don't > remember which one) already has the ability to have multiple keys. IIRC encfs does something like this (global key protected with pass phrase and optional per-file IVs). And there is a new development: http://ecryptfs.sourceforge.net/ Eduard. -- Fast jede Frau ist sch?n, wenn sie Charme hat. Fast jede Frau hat Charme, wenn sie Scham hat. -- Sigmund Graff - 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/