CODEWITHSUNDEEP
androidbluetoothbluetooth-lowenergyandroid-5.0-lollipopspoofing
Maestro
Maestro

Reputation: 9508

Can you uniquely identify a BLE MAC address in Android 5.0?

In Android 5.0, BLE doesn't use static MAC addresses anymore, but the MACs change after intervals, using a method called IRK and public key cryptography.

Is it possible to uniquely identify an Android phone in a way that can not be spoofed by the user of that phone, or has that become completely impossible now unless the other side co-operates?

Upvotes: 1

Views: 2308

Answers (2)

Guangqiu Jiang
Guangqiu Jiang

Reputation: 1

The private address is generated using the devices IRK exchanged during the previous pairing/bonding procedure. So if they have not bonded, you can't get irk.

Upvotes: 0

Bogdan Alexandru
Bogdan Alexandru

Reputation: 5542

No, it is not possible. That's the whole idea of using IRKs: only bonded devices can identify it after the address changes. For those who do not possess the IRK (because they have not bonded), it would always appear as a completely new device (hence the privacy).

Upvotes: 2

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