Patent ID: 11743731

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, 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 by using a public key information of the second device and random information, the second device receives the encrypted identifying 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. For example, the wireless channel is Wi-Fi, the identifying information is an identifier for a password or passphrase and the secret is the password or passphrase and the authentication method is simultaneous authentication of equals (SAE). Alternatively the pairing protocol is DPP and the identifying information is a part of the DPP Connector. The public key information can be transmitted in a Beacon, DMG Beacon, Probe Response, Announce, or Information Response frame or be configured in the first device by a DPP Configurator using the DPP protocol adapted for transferring the public key information as part of the DPP Configuration response message.