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.

Date of Patent:
Jan. 16, 2024

Filed:

Aug. 05, 2021
Applicant:

Daegu Gyeongbuk Institute of Science and Technology, Daegu, KR;

Inventors:

Ji Woong Choi, Seoul, KR;

Woo Jin Jeong, Busan, KR;

Eun Min Choi, Gyeongsangnam-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2013.01); H04L 9/40 (2022.01); H04L 12/40 (2006.01); H04K 3/00 (2006.01);
U.S. Cl.
CPC ...
H04L 63/1416 (2013.01); H04K 3/60 (2013.01); H04L 12/40 (2013.01); H04L 63/1441 (2013.01); H04L 2012/40273 (2013.01);
Abstract

A method of detecting a malicious node in a bus network system includes pre-storing, by a receiving node, autocorrelation characteristics and node identifiers for each signal received from nodes excluding than the receiving node in a bus network system, receiving, by the receiving node, a target signal from any one of the nodes, generating, by the receiving node, an autocorrelation characteristic of the target signal, searching for an autocorrelation characteristic, which is identical to the autocorrelation characteristic of the target signal or similar to the autocorrelation characteristic of the target signal by a reference level or more, among the autocorrelation characteristics of each of the signals stored by the receiving node, determining, by the receiving node, whether a first node identifier matching the searched autocorrelation characteristic and a second node identifier extracted from a packet transmitted to the target signal are the same.


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