CODEWITHSUNDEEP
androidkeychaintrustzone
user1118764
user1118764

Reputation: 9845

Are Android hardware backed credential storage wiped upon factory reset?

I'm interested in storing data in hardware backed storage(in TrustZone) as described in https://developer.android.com/about/versions/android-4.3.html.

Do these survive a factory reset?

Upvotes: 2

Views: 1584

Answers (1)

pedrofb
pedrofb

Reputation: 39291

Keys stored in Android Keystore are invalidated when the device security settings (device-lock) are changed by the user. Presumably a hardware reset, that also reset the security setting will invalidate the keys

In this article Android security the forgetful keystore is analyzed the behaviour of Android Keystore and hardware support.

Upvotes: 1

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