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From: Matt Baxter-Reynolds <matt@amxmobile.com>
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Subject: Re: Device UUID storage
Date: Wed, 24 Oct 2012 08:52:16 +0100
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Hi,

Sorry to jump in without background, but on Win8 I think it would make =
more sense to use the built-in hardware ID that WinRT provides, as =
below, rather than using createUUID to demand-create a device ID. (The =
hardware ID would obviously survive a localStorage reset.)
private string GetHardwareId()
{
var token =3D HardwareIdentification.GetPackageSpecificToken(null);
var hardwareId =3D token.Id;
var dataReader =3D =
Windows.Storage.Streams.DataReader.FromBuffer(hardwareId);

byte[] bytes =3D new byte[hardwareId.Length];
dataReader.ReadBytes(bytes);

return BitConverter.ToString(bytes);
}

I've created a Jira item to this effect.=20
https://issues.apache.org/jira/browse/CB-1702


Hopefully I'm not missing something! As I suggest, I'm new to any prior =
discussion.

Thanks,
Matt

=
--------------------------------------------------------------------------=
-------------------------------------------------------------
Matt Baxter-Reynolds (@mbrit)
Independent software development consultant, speaker, author, and =
trainer.
Windows 8 Specialist.=20

Read my blog at ZDNet. Talk to me on Twitter.
.
Coming December 2012: "Programming Windows Store Apps with C#" =
(O'Reilly)
Come along to the London Windows Store Apps Developer Group

On 24 Oct 2012, at 05:30, Mingfeng Wang <mingfengwang01@gmail.com> =
wrote:

> Hey,
>=20
>    Now the Device UUID is saved in localStorage of html5 for Windows8, =
so
> it is the same if all the projects are in the same domain.
>    I want to use a file instead of localStorage, is it necessary? And
> where can I save this file?
>=20
> Mingfeng


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