Title : Research and Findings ( Bluetooth classification and security)
BLUETOOTH RANGE
-There are three classes in Bluetooth which depends on the power that it needs to broadcast. The exact range of the Bluetooth broadcast depends on the surroundings.
Class 1 – 100 meters range with maximum permitted power set at 5mW.
Class 2 – 10 meters range with maximum permitted power set at 2.5mW.
Class 3 – 1 meter range with maximum permitted power set at 1mW.
-Security is important when communicating without wires. If your device is discover able, anyone in the vicinity can do a device discovery and find your Bluetooth device. They may determine which services your device is offering and try to connect to them. Another problem is eavesdropping, which can be done very easily when communicating without wires.
-In order to handle these threats, the Bluetooth specification defines a security model based on three components:
- · Authentication
- · encryption
- · authorization
-In addition, three security modes are defined, enforcing different levels of security. A security manager is used to handle the security transactions in the Bluetooth system.