What an odd article. The code showing how the database is encrypted on the device is obviously open source so it's not really a very interesting feat of detecti

What an odd article. The code showing how the database is encrypted on the device is obviously open source so it's not really a very interesting feat of detective work to... read the code and find out how it works. They could even have just copied the code. The much more interesting question is how they might extract keys from the Android Keystore (where key material is very often stored in a Secure Element or similar), but they don't even mention that this might be quite challenging - the article just ignores the question.