CCC Digital Key applications overview

Note: The applications described below implement only the Bluetooth Low Energy functionality described by CCC Digital Key R3. They do not include any UWB or Secure Element functionality. The establishment of secure communications between the demos is simulated using dummy messages.

Digital Key Car Anchor

The Digital Key Car Anchor demo application implements one of the multiple Bluetooth Low Energy anchors that can reside inside the car. The anchor performs a dual role. Inside the CCC Digital Key scope, it is a Bluetooth Low Energy peripheral which, depending on the scenario, can perform both Legacy (1M PHY) and Extended Long Range (500 kbps Coded PHY) advertising, searching for a CCC Digital Key-enabled device such as a smartphone. Simultaneously it can also act as a Bluetooth Low Energy central, scanning for non-CCC key fobs. There can be multiple anchors inside a car. The anchors must act as a single device and share information between them (addresses, bonding data, application specific keys, and such data) such that a smartphone can connect to any one of them depending on positioning and not detect any difference.

Parent topic:CCC Digital Key applications overview

Digital Key Device

The Digital Key Device demo application emulates a CCC Digital Key-enabled smartphone. It acts as a Bluetooth Low Energy central device, scanning for advertising coming from a Digital Key Car Anchor.

The Figure 1 shows an example deployment of CCC Digital Key R3. Inside the car, there are two Bluetooth Low Energy anchors connected to each other. The Controller Area Network (CAN) bus connects these anchors and is used to exchange security data and other information. Any anchor can perform both advertising and scanning and it is able to connect to a CCC Digital Key R3-enabled smartphone as well as to a non-CCC key fob.

Parent topic:CCC Digital Key applications overview