Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753658Ab1C2NXF (ORCPT ); Tue, 29 Mar 2011 09:23:05 -0400 Received: from moutng.kundenserver.de ([212.227.126.186]:63788 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751301Ab1C2NXC (ORCPT ); Tue, 29 Mar 2011 09:23:02 -0400 From: Arnd Bergmann To: Alan Cox Subject: Re: [PATCH] NFC: Driver for Inside Secure MicroRead NFC chip Date: Tue, 29 Mar 2011 15:22:56 +0200 User-Agent: KMail/1.12.2 (Linux/2.6.37; KDE/4.3.2; x86_64; ; ) Cc: Waldemar.Rymarkiewicz@tieto.com, sameo@linux.intel.com, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, hthebaud@insidefr.com, matti.j.aaltonen@nokia.com References: <1300444824-13713-1-git-send-email-waldemar.rymarkiewicz@tieto.com> <201103291404.39023.arnd@arndb.de> <20110329132305.7aa065a1@lxorguk.ukuu.org.uk> In-Reply-To: <20110329132305.7aa065a1@lxorguk.ukuu.org.uk> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201103291522.56667.arnd@arndb.de> X-Provags-ID: V02:K0:BR4p4WxNRCbc70MBOf+jb4jVyxIiffXenIl4+snjzXg /I4Qq1eOHANrJEd75btsOOpgON76IGddhPjA4aome5QNCwV3Aj bVxL5KDdpjxtc7s2LZ/oQtqbCZIAnN4NbSVSj7C9lIoDd3yMlg b667LTj64izNEC7eMvQ3MFE2PxvRtrEpscHqr4CeGszTtf3fKT ESH/azIo5HwV3MxHgPuFQ== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 762 Lines: 18 On Tuesday 29 March 2011, Alan Cox wrote: > > I was under the impression that NFC was peer-to-peer, so the driver > > would already be handling both sides potentially. > > Your security requirements each side are going to be very different. A > phone or handheld device is generally single user at a time, the other > end may well be interacting with many devices at once each with their own > security context and potentially handling sensitive data (payment > authorisations for example). Yes, good point. Arnd -- 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/