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    Voltage encoded MAC and bus scrambling
    2.
    发明授权
    Voltage encoded MAC and bus scrambling 有权

    公开(公告)号：US11949793B2

    公开(公告)日：2024-04-02

    申请号：US17868204

    申请日：2022-07-19

    Applicant: Intel Corporation

    Inventor： Marcio Juliato ,  Shabbir Ahmed ,  Christopher Gutierrez ,  Xiruo Liu ,  Manoj Sastry ,  Liuyang Yang

    IPC: H04L9/32 ,  H04L12/40

    CPC classification number: H04L9/3242 ,  H04L12/40 ,  H04L2012/40215 ,  H04L2012/40273

    Abstract: Various embodiments are generally directed to providing authentication and confidentiality mechanisms for message communication over an in-vehicle network. For example, authentication data associated with a communicating node may be transmitted over the network by encoding different predefined voltage levels on top of the message bits of the message being communicated. Different voltage levels may represent different encodings, such as a bit-pair or any bit combination of the authentication data. In a further example, messaging confidentiality between at least two communicating nodes may be achieved by pseudo-randomly flipping, or scrambling, the dominant and recessive voltages of the entire message frame at the analog level based on a pseudo-random control bit sequence.

    METHODS AND ARRANGEMENTS FOR MULTI-LAYER IN-VEHICLE NETWORK INTRUSION DETECTION AND CHARACTERIZATION
    6.
    发明申请
    METHODS AND ARRANGEMENTS FOR MULTI-LAYER IN-VEHICLE NETWORK INTRUSION DETECTION AND CHARACTERIZATION 有权

    公开(公告)号：US20220350888A1

    公开(公告)日：2022-11-03

    申请号：US17867780

    申请日：2022-07-19

    Applicant: INTEL CORPORATION

    Inventor： Christopher N. Gutierrez ,  Marcio Juliato ,  Shabbir Ahmed ,  Qian Wang ,  Manoj Sastry ,  Liuyang L. Yang ,  Xiruo Liu

    IPC: G06F21/56

    Abstract: Logic may implement observation layer intrusion detection systems (IDSs) to combine observations by intrusion detectors and/or other intrusion detection systems. Logic may monitor one or more control units at one or more observation layers of an in-vehicle network, each of the one or more control units to perform a vehicle function. Logic may combine observations of the one or more control units at the one or more observation layers. Logic may determine, based on a combination of the observations, that one or more of the observations represent an intrusion. Logic may determine, based at least on the observations, characteristics of an attack, and to pass the characteristics of the attack information to a forensic logging system to log the attack or pass the characteristics of the attack to a recovery system for informed selection of recovery procedures. Logic may dynamically adjust a threshold for detection of suspicious activity.

    Voltage encoded MAC and bus scrambling
    7.
    发明授权
    Voltage encoded MAC and bus scrambling 有权

    公开(公告)号：US11463262B2

    公开(公告)日：2022-10-04

    申请号：US16720956

    申请日：2019-12-19

    Applicant: Intel Corporation

    Inventor： Marcio Juliato ,  Shabbir Ahmed ,  Christopher Gutierrez ,  Xiruo Liu ,  Manoj Sastry ,  Liuyang Yang

    IPC: H04L9/32 ,  H04L12/40

    Abstract: Various embodiments are generally directed to providing authentication and confidentiality mechanisms for message communication over an in-vehicle network. For example, authentication data associated with a communicating node may be transmitted over the network by encoding different predefined voltage levels on top of the message bits of the message being communicated. Different voltage levels may represent different encodings, such as a bit-pair or any bit combination of the authentication data. In a further example, messaging confidentiality between at least two communicating nodes may be achieved by pseudo-randomly flipping, or scrambling, the dominant and recessive voltages of the entire message frame at the analog level based on a pseudo-random control bit sequence.

    INFERENCE MODELS FOR INTRUSION DETECTION SYSTEMS IN TIME SENSITIVE NETWORKS
    8.
    发明申请
    INFERENCE MODELS FOR INTRUSION DETECTION SYSTEMS IN TIME SENSITIVE NETWORKS 有权

    公开(公告)号：US20220224701A1

    公开(公告)日：2022-07-14

    申请号：US17706955

    申请日：2022-03-29

    Applicant: Intel Corporation

    Inventor： Christopher Gutierrez ,  Vuk Lesi ,  Manoj Sastry ,  Christopher Hall ,  Marcio Juliato ,  Shabbir Ahmed ,  Qian Wang

    IPC: H04L9/40 ,  H04J3/06

    Abstract: Techniques to secure a time sensitive network are described. An apparatus may establish a data stream between a first device and a second device in a network domain, the network domain includes a plurality of switching nodes, receive messages from the first device by the second device in the network domain, the messages to comprise time information to synchronize a first clock for the first device and a second clock for the second device to a network time for the network domain, update a correction field for a received message with a residence time and time delay value by the second device, determine whether the updated message is benign or malicious, update the correction field for the updated message with an inference time when the updated message is benign, and prevent relay of the updated message to other devices in the network domain when the updated message is malicious.

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