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Does DRM usually just mess with people who actually paid for the content? I mean make it inconvient for them to access their content else where?
by cdooh 13y ago
Does DRM usually just mess with people who actually paid for the content? I mean make it inconvient for them to access their content else where?
- adrr 13y agoWonder how much battery it burns to do the decode compared to a non DRM video.
- tptacek 13y agoTo a first approximation, TZ is just an extra bit on addresses. So, probably not so much.
- timthorn 13y agoWell, decryption has costs - and the question was DRM and not TZ specific. But yes, doing the work in the secure world is as cheap as the normal OS
- est 13y agoThere's no decryption. It's encrypted all the way to your screen's each pixel.
- regularfry 13y agoThat makes no sense. You might not be able to get at the decrypted pathway from software, but at some point there's got to be a decrypted linear buffer to drive the pixel array.
- cdooh 13y agoBut every bit of power counts with smartphones.