On Fri, Jul 19, 2013 at 8:38 AM, Andrew Allen <aallen@xxxxxxxxxxxxxx> wrote:
I suggest you also read
http://datatracker.ietf.org/doc/draft-allen-dispatch-imei-urn-as-instanceid/
Quoting from that document: “If a URN scheme other than UUID is used, the UA MUST only use URNs for which an RFC (from the IETF stream) defines how the specific URN needs to be constructed...”
Now, I’m not an expert in the 3GPP world; but the suggestion in that extract that UUIDs are a better choice than a (shaky, unreliable, privacy-problematic) device identifier certainly rings true for those of us who think at the apps level. -T
That will explain the primary application of this URN which is intended for use in the 3GPP cellular standards.
Andrew
From: Tim Bray [mailto:tbray@xxxxxxxxxxxxxx]
Sent: Friday, July 19, 2013 10:02 AM Central Standard Time
To: IETF-Discussion Discussion <ietf@xxxxxxxx>
Subject: Last call: draft-montemurro-gsma-imei-urn-16.txt
----------------------------------------------------------------------TimJust wanted to point out that both Apple (for iOS) and Google (for Android) have strongly discouraged the use of IMEI to identify devices for the purposes of application software. There are privacy, quality, and availability issues with their use. Apple has removed the ability of developers to work with the (often IMEI-derived) “Universal Device ID” (see http://blogs.avg.com/mobile-2/apple-ios-7-puts-unique-device-ids/) and Google has officially deprecated their use: http://android-developers.blogspot.ca/2011/03/identifying-app-installations.htmlI’m not sure from reading the draft what the goal of having this URN namespace is, but if it involves encouraging its use by application developers, I’m pretty sure it’s a bad idea.
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