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SubjectRE: Dual-Licensing Linux Kernel with GPL V2 and GPL V3

> On Jun 17, 2007, Alan Cox <> wrote:
> >> I don't know any law that requires tivoization.
> > In the USSA it is arguable that wireless might need it (if done in
> > software) for certain properties. (The argument being it must be
> > tamperproof to random end consumers).
> But this is not tivoization.

> Tivoization is a manufacturer using technical measures to prevent the
> user from tampering (*) with the device, *while* keeping the ability
> to tamper with it changes itself.

You're splitting those hairs might finely. So when you ask whether there's
any law that "requirse tivoization", you won't accept a law that creates a
situation where the only practical solution is tivoization?

> (*) tampering brings in negative connotations that I'd rather avoid,
> but since that was the term you used, and the term "modifying" might
> bring in legal-based technicalities such as that replacing isn't
> modification, I just went with it.

> So, given a proper definition, do you know any law that requires
> tivoization?

> Taking it further, do you know whether any such law requires
> *worldwide* tivoization, as in, applying the restrictions in the law
> even outside its own jurisdiction?

A law that requires certaint things be tamper-proof, where engineering
realities requires that they be controlled by software and the software be
upgradable (for security reasons and for support of future protocol
revisions) isn't good enough for you?


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