Talk:Maemo security

A wiki is probably the best tool we have but it's not perfect. To make it work better please sign your comments and try to maintain some structure.

Putting three ~ and a : at the start of a new comment sounds sane if you have an account; otherwise some identifier would be polite.

Suggested questions:

Contents

What is "Open Mode" and can it be revoked remotely?

lbt Essentially can Nokia reach out the the 2nd stage bootloader and tell it to stop running unsigned kernels. Maybe this should be 2 questions.


Can open applications use the DRM encryption mechanisms in the Open and Closed modes?

lbt I can see that this could be useful. Maybe.


Is there any GPLv3 software impacted?

lbt this is @ community: Please have a license discussion somewhere and let us know when you have consensus.

lbt What is Nokias position? Peter made a statement at the talk - can someone transcribe it and/or get Nokia to clarify.

What exactly is available to the end user?

  • storage encryption ?
  • PIM data encryption ?
  • encrypted/signed communications (phone, sms/mms, mails, IM) ?

How does closed mode affect on-device debugging?

For example, will ptrace(2) still work (eg gdb, strace & ltrace)? Will we be able to produce code dumps?

Will DRM-free data and DRM-free applications be accessible from both modes once they're installed/created in either of the two modes?

E.g.: I start in DRM-mode, install DRM-free applications from Extras, take 3 pictures, add some contacts. Then I switch to DRM-free mode: Will I be able to run the applications installed in DRM-free mode, view and edit my contacts and view and edit my own pictures? (And the other way round, of course, starting from DRM-free mode and switching to DRM afterwards.)

What is open mode good for at all?

Provided you don't consume digitally restricted media and don't purchase applications that in any way rely on DRM: You don't need DRM-mode then, but on the other hand why would you want DRM-free mode? What is it you cannot do in DRM-mode in such a scenario? Use case?

What is ARM's TrustZone?

The official ARM TrustZone page: http://www.arm.com/products/security/trustzone/index.html

Can the Trusted Execution Environment (TrEE) be used as a kill switch for the device even if it runs in open mode?

Will a SIM-locked device with a contract become unlocked at the end of the contract?

lbt It seems very reasonable to allow the phone to be locked for the duration if that is part of the carrier's contract. After that it should be able to access 'open' mode. Will this be possible? How?

Maintaining the discussion

On the talk.maemo.org thread, I suggest that end-users are kept at arms' length from this page and we use it as a proper communication mechanism between the community and Elena et al. --Jaffa 10:43, 13 October 2009 (UTC)

More discussion in the #maemo chat which was going on concurrently with the talk and a few flickr photos. --Jaffa 11:20, 13 October 2009 (UTC)