The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2015
Filed:
Sep. 03, 2012
Seon-yeob Baek, Daejeon, KR;
Sang-kyung Yoo, Daejeon, KR;
Seok Ryu, Daejeon, KR;
Sang-han Lee, Daejeon, KR;
Jang-hong Yoon, Daejeon, KR;
Seon-Yeob Baek, Daejeon, KR;
Sang-Kyung Yoo, Daejeon, KR;
Seok Ryu, Daejeon, KR;
Sang-Han Lee, Daejeon, KR;
Jang-Hong Yoon, Daejeon, KR;
Electronics And Telecommunicatons Research Institute, Daejeon, KR;
Abstract
A secret key generation apparatus and method are provided. The secret key generation apparatus includes at least one antenna, amplification/phase controllers, a transceiver, and a random signal controller. The antenna receives a wireless signal from a counterpart terminal that performs wireless communication. The amplification/phase controllers control the amplification gain and phase of the wireless signal that is received via at least one antenna. The transceiver measures the status of a wireless channel using the wireless signal having the controlled amplification gain and phase, determines parameters based on results of the measurement, and generates a secret key based on results of the determination. The random signal controller controls the amplification/phase controllers so that the amplification gain and phase are adjusted whenever the transceiver generates a secret key.