Method and device to establish a wireless secure link while maintaining privacy against tracking

Abstract

This application relates to devices and a method to establish a secure wireless link for communication between a first and a second device over a wireless physical channel, wherein a paring protocol requires sending over the wireless channel identifying information by the first device, the identifying information being data suitable for identifying the device sending the identifying information, or a user thereof, wherein the first device encrypts and transmits the identifying information and random information by using a public key information of the second device. The second device receives the encrypted identifying and random information and, using private key information associated with the public key information, it extracts the identifying information. The devices use a secret uniquely related to the identifying information to derive a session key and then use the session key to establish the secure wireless link.

CPC Classifications