Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753334Ab1C2MWm (ORCPT ); Tue, 29 Mar 2011 08:22:42 -0400 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:58139 "EHLO www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752680Ab1C2MWk (ORCPT ); Tue, 29 Mar 2011 08:22:40 -0400 Date: Tue, 29 Mar 2011 13:23:05 +0100 From: Alan Cox To: Arnd Bergmann 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 Subject: Re: [PATCH] NFC: Driver for Inside Secure MicroRead NFC chip Message-ID: <20110329132305.7aa065a1@lxorguk.ukuu.org.uk> In-Reply-To: <201103291404.39023.arnd@arndb.de> References: <1300444824-13713-1-git-send-email-waldemar.rymarkiewicz@tieto.com> <201103291305.02293.arnd@arndb.de> <20110329125931.21a69776@lxorguk.ukuu.org.uk> <201103291404.39023.arnd@arndb.de> X-Mailer: Claws Mail 3.7.8 (GTK+ 2.22.0; x86_64-redhat-linux-gnu) Face: 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 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 685 Lines: 15 > 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). Alan -- 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/