公开(公告)号：US20210091942A1

公开(公告)日：2021-03-25

申请号：US16499132

申请日：2018-03-28

Applicant: Agency for Science, Technology and Research

Inventor： Duy Hieu Nguyen ,  Sumei Sun ,  Yong Dong Wu ,  Boon Shyang Lim

IPC: H04L9/08 ,  H04L29/06 ,  H04L25/02

Abstract: There is provided a method of generating a secret key at a first node for data communication between the first node and a second node. The method includes obtaining a channel estimate of a communication channel between the first and second nodes; obtaining a time-frequency matrix associated with the communication channel based on a time-frequency transformation of the channel estimate; and producing the secret key based on the time-frequency matrix. There is also provided a corresponding key generator for generating a secret key.

公开(公告)号：US11582035B2

公开(公告)日：2023-02-14

申请号：US16499132

申请日：2018-03-28

Applicant: Agency for Science, Technology and Research

Inventor： Duy Hieu Nguyen ,  Sumei Sun ,  Yong Dong Wu ,  Boon Shyang Lim

IPC: H04L9/08 ,  H04L25/02 ,  H04L9/40

Abstract: A method for generating a secret key at a first node for data communication between the first node and a second node. A channel estimate of a communication channel between the first and second nodes is obtained. A time-frequency matrix associated with the communication channel is then obtained based on the time-frequency transformation of the channel estimate. The secret key is then produced based on the time-frequency matrix. Furthermore, a corresponding key generator may be provided for generating a secret key.