2016-11-27
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Fortfarande brister i Androids krypteringsmodell

Matthew Green:

While the above is bad, it’s important to stress that the real problem here is not really in the cryptography. The problem is that since Google is not giving developers proper guidance, the company may be locking Android into years of insecurity. Without (even a half-baked) solution to define a “complete” protection class, Android app developers can’t build their apps correctly to support the idea that devices can lock. Even if Android O gets around to implementing key eviction, the existing legacy app base won’t be able to handle it — since this will break a million apps that have implemented their security according to Android’s current recommendations.

In short: this is a thing you get right from the start, or you don’t do at all. It looks like — for the moment — Android isn’t getting it right.

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