公开(公告)号：US20220386397A1

公开(公告)日：2022-12-01

申请号：US17776745

申请日：2020-11-16

Applicant: SINGAPORE UNIVERSITY OF TECHNOLOGY AND DESIGN

Inventor： Jay PRAKASH ,  Tony Quee Seng QUEK ,  Andrei BYTES ,  Jianying ZHOU ,  Jemin LEE

IPC: H04W76/14 ,  H04W48/16 ,  H04W12/06 ,  H04W12/63 ,  H04W12/041

Abstract: A method of establishing a direct wireless communication link between a first device and a second device (the first device being designated as a sender and the second device being designated as a receiver) comprises: a proximity authentication operation that comprises determining, based on signals received by the first and second devices over one or more RF channels from a plurality of wireless access points, that the first device is proximate the second device; following the proximity authentication operation, a key generation operation that comprises: generating a shared secret by performing randomness extraction on respective signals received at the first and second devices over a selected channel of the one or more RF channels; and establishing the direct wireless communication link using the shared secret.