Secure hybrid boot systems and secure boot procedures for hybrid systems

    公开(公告)号:US11100229B2

    公开(公告)日:2021-08-24

    申请号:US16515633

    申请日:2019-07-18

    Abstract: A hybrid device includes a plurality of diverse subsystems, including a first and a second subsystem. The first subsystem includes at least one first secured storage device configured to store a first software and a first CPU configured to boot and execute the first software. The second subsystem includes at least one second secured storage device configured to store a second software and a second CPU configured to boot and execute the second software. The first CPU is configured to generate the first hash of the first software and transmit the generated first hash of the first software to the second subsystem. The second CPU is configured to perform a first authenticity validation check on the first software using the received first hash of the first software, and generate an error signal on a condition that the first authenticity validation check on the first software fails.

    Method and apparatus for processing data

    公开(公告)号:US10970399B2

    公开(公告)日:2021-04-06

    申请号:US16161440

    申请日:2018-10-16

    Abstract: A method for processing data in a plurality of processing acts includes: configuring a plurality of processing circuits in a first configuration, in such a way that both a first and a second of the plurality of processing circuits execute a first of the plurality of processing acts; and configuring the plurality of processing circuits in a second configuration, in such a way that the first processing circuit executes a second processing act and the second processing circuit executes a third processing act, which is different than the second processing act. An apparatus is designed for carrying out the method.

    Automotive nonce-misuse-resistant authenticated encryption

    公开(公告)号:US10862670B2

    公开(公告)日:2020-12-08

    申请号:US15983594

    申请日:2018-05-18

    Abstract: A system may include a plurality of matching block cipher devices, and a hardware state machine communicatively coupled to each of the plurality of matching block cipher devices. Each of the plurality of matching block cipher devices can be independently invoked by the hardware state machine such that the hardware state machine causes two or more of the plurality of matching block cipher devices to selectively perform a block-cipher-based symmetric cryptographic operation in a redundant mode or a parallel mode. The block-cipher-based symmetric cryptographic operation may be associated with securing a communication channel of an automotive system.

    TRANSCEIVER AND TRANSCEIVER SYSTEMS
    24.
    发明申请

    公开(公告)号:US20190334720A1

    公开(公告)日:2019-10-31

    申请号:US16395783

    申请日:2019-04-26

    Abstract: A transceiver is disclosed including a transmitter designed to output a first signal according to a physical communication protocol, and to output a second signal comprising at least one cryptographic datum. The first and the second signal may be overlaid onto one another as an overlay signal at the output of the transceiver, and may comply with the physical communication protocol. The overlay signal may be received and processed by a receiver.

    SECURE COMMUNICATIONS USING PRE-SHARED KEYS

    公开(公告)号:US20250158808A1

    公开(公告)日:2025-05-15

    申请号:US18508443

    申请日:2023-11-14

    Abstract: The described techniques address issues to achieve key agreement without the need to exchange separate key agreement messages and, consequently, meets the stringent starting time requirements for real-time control systems. This is achieved using a group-wide key counter, with each node storing the latest value of this counter that was observed via the last received secured message. This counter value increases monotonically, and nodes maintain synchronization by transmitting this counter value (or a representation of the counter value) in each secured message.

    PROVIDING SECURE TRACE MESSAGE COMMUNICATIONS USING SYMMETRIC ENCRYPTION AND AUTHENTICATION

    公开(公告)号:US20250080325A1

    公开(公告)日:2025-03-06

    申请号:US18459695

    申请日:2023-09-01

    Abstract: The described techniques address issues associated with current implementations of debugging and tracing tools, which transmit trace data from tracing processes in an unencrypted form. The techniques include providing a secure means by which to convey the trace data instances outside of a monitored system utilizing an encryption scheme that leverages a number used only once (nonce) value for the encryption of the trace data instances. Advantageously, a time stamp value identified with one or more of the trace messages may be used to generate the nonce value to facilitate the encryption of the trace data instances.

    Electronic anomaly detection unit for use in a vehicle, and method for detecting an anomaly in a component of a vehicle

    公开(公告)号:US11945451B2

    公开(公告)日:2024-04-02

    申请号:US16509639

    申请日:2019-07-12

    Abstract: An electronic anomaly detection unit for use in a vehicle includes an input component for capturing an input variable, wherein the input variable contains state information for at least one component of the vehicle, a memory component for storing state values based on the input variable, a selection component for selecting selected state values from the stored state values, an association component for associating the selected state values with predefined values, wherein the predefined values define a normal state of the component of the vehicle, and a decision component for deciding whether there is an anomalous behavior in the at least one component of the vehicle, based on the association, wherein one or more of the input component, the memory component, the selection component, the association component and the decision component are implemented in hardware.

    Generating hash values
    28.
    发明授权

    公开(公告)号:US11849024B2

    公开(公告)日:2023-12-19

    申请号:US17872253

    申请日:2022-07-25

    CPC classification number: H04L9/0643 H04L9/0866 H04L9/0877 H04L9/3252

    Abstract: A device is suggested for processing input data including a hardware accelerator generating a first hash value based on a first portion of the input data and a second hash value based on a second portion of the input data, wherein the first hash value is generated based on a first configuration of the hardware accelerator and wherein the second hash value is generated based on a second configuration of the hardware accelerator. Also, a method for operating such device is provided.

    Selective real-time cryptography in a vehicle communication network

    公开(公告)号:US11722293B2

    公开(公告)日:2023-08-08

    申请号:US17684670

    申请日:2022-03-02

    CPC classification number: H04L9/0643 H04L9/0662 H04L63/205 H04L2209/84

    Abstract: A sender device includes: a first sequence generator configured to generate a first sequence of bits having a bit pattern that incudes first bit values and second bit values; a first parsing processor configured to receive a first plurality of data blocks and the first sequence of bits, and select a first subset of data blocks and a second subset of data blocks from the first plurality of data blocks based on the bit pattern; an encryption processor configured to encrypt the selected first subset of data blocks received from the first parsing processor to generate encrypted data blocks and output the encrypted data blocks to an output terminal that is configured to output the encrypted data blocks and the selected second subset of data blocks as unencrypted data blocks from the sender device.

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