linux-kernel - Re: [PATCH] NFC: Driver for Inside Secure MicroRead NFC chip

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Message-ID: <20110329132305.7aa065a1@lxorguk.ukuu.org.uk>
Date:	Tue, 29 Mar 2011 13:23:05 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Waldemar.Rymarkiewicz@...to.com, sameo@...ux.intel.com,
	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
	hthebaud@...idefr.com, matti.j.aaltonen@...ia.com
Subject: Re: [PATCH] NFC: Driver for Inside Secure MicroRead NFC chip

> 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
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