公开(公告)号：US20200213847A1

公开(公告)日：2020-07-02

申请号：US16559488

申请日：2019-09-03

Applicant: Gwangju Institute of Science and Technology

Inventor： Yong Gu LEE ,  Seung Tae KIM ,  Eui Seok HWANG

IPC: H04W12/06 ,  H04W12/04 ,  G06N7/00

Abstract: A method for authenticating a signal by using channel gain information of a transmitting apparatus and a receiving apparatus for authenticating a signal by using the channel gain information includes: estimating, by the transmitting apparatus, the channel gain information between the transmitting apparatus and the receiving apparatus by using a first signal received from the receiving apparatus; flipping, by the transmitting apparatus, an authentication key pre-shared with the receiving apparatus by using the channel gain information and requesting authentication by transmitting a second signal to respond to the first signal to the receiving apparatus by using a flipped first authentication key; estimating, by the receiving apparatus, the channel gain information by using the second signal received from the transmitting apparatus; and flipping, by the receiving apparatus, the pre-shared authentication key by using the channel gain information and authenticating the transmitting apparatus by using a flipped second authentication key.