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:
Jul. 31, 2018
Filed:
May. 11, 2016
Applicants:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Inventors:
Byung-Jae Kwak, Daejeon, KR;
Jeongseok Ha, Daejeon, KR;
Sanghun Im, Goyang-si, KR;
Sangseok Yun, Busan, KR;
Assignees:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/00 (2006.01); H04L 9/08 (2006.01); H04W 12/04 (2009.01);
U.S. Cl.
CPC ...
H04K 1/00 (2013.01); H04L 9/0875 (2013.01); H04W 12/04 (2013.01); H04L 2209/80 (2013.01);
Abstract
A method and apparatus for generating a secret key includes: acquiring a random sequence by use of reciprocity of a radio channel; generating the secret key based on the random sequence; and stopping generating the secret key when it is determined that the radio channel is flat based on flatness measured from the radio channel.