Question

Which one is used as authentication for paring bluetooth devices?​

Answer 1

Answer:The Bluetooth pairing procedures consist of 3 or 4 steps:

• Creation of an initialization key (Kinit).

• Creation of a link key (KAB).

• Authentication.

After the 3 pairing steps are completed, the devices can derive an encryption key to hide all future communication in an optional 4th step.

Explanation:

Answer 2

Answer:

The PIN code is available at both Bluetooth devices. One hundred and twenty eight bit IN_RAND is transmitted in plain text. This initialization key (Kinit) is used only during the pairing process.

...

MUTUAL AUTHENTICATION.

• The random word AU_RANDA.

• Its own Bluetooth device address (BD_ADDRB).