ENHANCED CRYPTOGRAPHY SYSTEMS AND METHODS
    4.
    发明公开

    公开(公告)号:US20240259177A1

    公开(公告)日:2024-08-01

    申请号:US18565340

    申请日:2022-05-27

    Applicant: Cummins Inc.

    CPC classification number: H04L9/002 H04L2209/16

    Abstract: Methods and systems for extending white-box cryptography are provided. A computing device can maintain, in a memory, one or more cryptography keys encrypted using a white-box cryptography solution. The one or more cryptography keys encrypt or decrypt data with a cryptography algorithm not supported by the white-box cryptography solution. The computing device can perform one or more anti-tampering verifications to detect tampering events for tampering with the computing device or an application installed on the computing device. The computing device can, upon determining that no tampering event is detected, decrypt the one or more cryptography keys using the white-box cryptography solution, and provide the one or more cryptography keys to encrypt or decrypt the data using the cryptography algorithm not supported by the white-box cryptography solution.

    METHOD AND SYSTEM FOR DETECTING INTRUSION IN A VEHICLE SYSTEM

    公开(公告)号:US20220232022A1

    公开(公告)日:2022-07-21

    申请号:US17611084

    申请日:2020-05-13

    Applicant: Cummins Inc.

    Abstract: Methods and systems of improving security of a computing system having a network of embedded devices are disclosed. The method includes starting a timer of a predetermined length of time, obtaining an expected number of cyclic messages to be received within the predetermined length of time, incrementing a message counter each time a cyclic message is received within the predetermined length of time, incrementing a set counter in response to an actual number of cyclic messages received by the end of the predetermined length of time exceeding the expected number of cyclic messages to be received by a first threshold value, and detecting an intrusion in the system in response to the set counter exceeding a second threshold value by the end of the predetermined length of time.

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