COMMUNICATION DEVICE IDENTIFICATION

摘要

A peripheral device and central device in a communication network, such as a Bluetooth Low Energy network, maintain privacy while establishing a connection. During the connection set-up, energy may be saved in the peripheral device by linking the advertising address of the peripheral device to the resolvable private address of the central device, thereby minimizing the search effort of the peripheral device.

主权项

1. A central device configured for establishing communication with a peripheral device, the central device comprising
a central device receiver unit configured to receive an advertising address from the peripheral device; a central device extraction unit configured to extract an address part from the advertising address to provide an extracted address part; a central device storage unit configured to store an identity resolving key, wherein the identity resolving key is a secret key shared between the central device and the peripheral device; a central device cryptographic unit configured to cryptographically process, using the identity resolving key, the extracted address part to obtain a central device cryptographic value; a central device assembly unit configured to assemble a resolvable private address by using the central device cryptographic value; and a central device transmitter unit configured to transmit the resolvable private address to the peripheral device.