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    METHOD AND DEVICE FOR SECURING NETWORK
    1.
    发明申请
    METHOD AND DEVICE FOR SECURING NETWORK 审中-公开

    公开(公告)号：US20200228564A1

    公开(公告)日：2020-07-16

    申请号：US16836369

    申请日：2020-03-31

    Applicant: Daegu Gyeongbuk Institute of Science and Technology

    Inventor： Ji Woong Choi ,  Eun Min Choi ,  Sung Min Han

    IPC: H04L29/06

    Abstract: A method, performed by an observer node, of securing a network, includes: receiving a signal over the network; determining, based on a frequency characteristic of the received signal, which is determined according to a physical characteristic of a node, which transmits the received signal, a node, which has transmitted the received signal among a plurality of nodes included in the network; comparing a pre-learned signal pattern of the determined transmission node with a pattern of the received signal to determine whether the determined transmission node is a malicious node; and blocking the signal transmitted from the malicious node by determining that the transmission node is a malicious node.

    Method and device for securing network
    2.
    发明授权
    Method and device for securing network 有权

    公开(公告)号：US11637846B2

    公开(公告)日：2023-04-25

    申请号：US16836369

    申请日：2020-03-31

    Applicant: Daegu Gyeongbuk Institute of Science and Technology

    Inventor： Ji Woong Choi ,  Eun Min Choi ,  Sung Min Han

    IPC: H04L9/40

    Abstract: A method, performed by an observer node, of securing a network, includes: receiving a signal over the network; determining, based on a frequency characteristic of the received signal, which is determined according to a physical characteristic of a node, which transmits the received signal, a node, which has transmitted the received signal among a plurality of nodes included in the network; comparing a pre-learned signal pattern of the determined transmission node with a pattern of the received signal to determine whether the determined transmission node is a malicious node; and blocking the signal transmitted from the malicious node by determining that the transmission node is a malicious node.

    Method of detecting malicious node in bus network system and node apparatus
    4.
    发明授权
    Method of detecting malicious node in bus network system and node apparatus 有权

    公开(公告)号：US11876810B2

    公开(公告)日：2024-01-16

    申请号：US17395121

    申请日：2021-08-05

    Applicant: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Ji Woong Choi ,  Woo Jin Jeong ,  Eun Min Choi

    IPC: G06F21/00 ,  H04L9/40 ,  H04L12/40 ,  H04K3/00

    CPC classification number: H04L63/1416 ,  H04K3/60 ,  H04L12/40 ,  H04L63/1441 ,  H04L2012/40273

    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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