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From "Shazron Abdullah (JIRA)" <>
Subject [jira] [Commented] (CB-49) UUID replacement
Date Wed, 30 May 2012 23:07:22 GMT


Shazron Abdullah commented on CB-49:

No - iOS is moving away from UDID for a reason (privacy) and we are following the spirit of
that intent. 

Encoding the MAC address + bundle identifier I can argue, uniquely identifies the user. If
one had the MAC address, and one knows bundle-identifiers of any app in the App Store (and
this information is not a secret, it is contained in the app's Info.plist), you can generate
the hash and compare to your logs - thus you can track the user easily. If the bundle-id of
an app was secret, you may have a case that this is "one way", but it is not.
> UUID replacement
> ----------------
>                 Key: CB-49
>                 URL:
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: iOS
>         Environment: iOS 5
>            Reporter: Shazron Abdullah
>            Assignee: Shazron Abdullah
>            Priority: Blocker
>             Fix For: 1.6.0
> reported at:
> by:
> As you might have read iOS 5 will remove the UDID (
> This is an excellent alternative and it would be nice if you would implement something
along these lines to keep the functionality. The idea of hashing together with the bundle
id is great, because it makes it impossible to track across applications, which is what apple
wanted to fix (although it can be circumvented that would only anger them, and tracking across
apps isn't required for most apps anyway).

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