US 11,743,731 B2
Method and device to establish a wireless secure link while maintaining privacy against tracking
Johannes Arnoldus Cornelis Bernsen, Eindhoven (NL)
Assigned to Koninklijke Philips N.V., Eindhoven (NL)
Appl. No. 17/271,621
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Aug. 23, 2019, PCT No. PCT/EP2019/072649
§ 371(c)(1), (2) Date Feb. 26, 2021,
PCT Pub. No. WO2020/043634, PCT Pub. Date Mar. 5, 2020.
Claims priority of application No. 18190900 (EP), filed on Aug. 27, 2018.
Prior Publication US 2021/0329462 A1, Oct. 21, 2021
Int. Cl. H04W 12/50 (2021.01); H04L 9/08 (2006.01); H04L 9/30 (2006.01); H04W 84/12 (2009.01); H04W 12/02 (2009.01)
CPC H04W 12/50 (2021.01) [H04L 9/088 (2013.01); H04L 9/30 (2013.01)] 17 Claims
OG exemplary drawing
 
2. A device being a first device adapted to establish a secure wireless link for communication between the first device and a second device over a wireless physical channel,
wherein a Device Provisioning Protocol requires the first device send identifying information over the wireless physical channel,
wherein the identifying information is a part of a Connector as defined in the Device Provisioning Protocol,
wherein the identifying information uniquely determines the device sending the identifying information or a user thereof;
the device comprising:
a processor, wherein the processor is arranged to:
generate random information;
encrypt a combination of the identifying information and the random information by using a public key information of the second device to provide a modified Connector;
derive a session key using a secret that is uniquely related to the identifying information,
wherein a simultaneous authentication of equals' algorithm is used for deriving the session key and the secret is a password used for the simultaneous authentication of equals' algorithm; and
use the session key to establish the secure wireless link with the second device; and
a transmitter that is arranged to transmit the modified Connector over the wireless channel; and
wherein the modified Connector enables the second device to restore the original Connector and thereby verify the integrity of the Connector.