Communication device and method for authenticating a message

    公开(公告)号:US11424932B2

    公开(公告)日:2022-08-23

    申请号:US16913043

    申请日:2020-06-26

    Abstract: A communication device is described including a receiver configured to receive a message including message data and a message authentication code, a first register for storing a received message authentication code and a second register for storing a computed message authentication code. The device also includes a first processor configured to extract the message authentication code from the message and to store the message authentication code in the first register, a second processor configured to compute a message authentication code based on the message data and to store the computed message authentication code in the second register, and a comparing circuit configured to compare the contents of the first register and the second register and to provide a comparison result. The device includes access control circuitry configured to prevent access by the second processor to the first register and to allow access by the first processor to the first register and to prevent access by the first processor to the second register and to allow access by the second processor to the second register.

    LIGHTWEIGHT TRACE BASED MEASUREMENT SYSTEMS AND METHODS

    公开(公告)号:US20180011776A1

    公开(公告)日:2018-01-11

    申请号:US15712536

    申请日:2017-09-22

    Inventor: Albrecht Mayer

    CPC classification number: G06F11/3636 G06F11/3466 G06F11/3476 G06F2201/865

    Abstract: An automotive electronics system includes an electronic control unit and a trace adapter. The electronic control unit is configured to receive measurement signals and provide control signals. Additionally, the electronic control unit is configured to generate or provide trace signals by replacing original instructions in a binary image with trace instructions. The trace instructions are functionally equivalent, but trigger providing the trace signals. The trace adapter is coupled to the electronic control unit. The trace adapter is configured to obtain the trace signals from the electronic control unit.

    METHOD AND DEVICE FOR PROCESSING DATA
    7.
    发明申请
    METHOD AND DEVICE FOR PROCESSING DATA 有权
    用于处理数据的方法和设备

    公开(公告)号:US20160080375A1

    公开(公告)日:2016-03-17

    申请号:US14483645

    申请日:2014-09-11

    CPC classification number: H04L63/0876 G06F2201/83 H04L63/0823 H04L63/123

    Abstract: A method for processing data is suggested, and includes (i) conveying input data from a safety component to a security component, and (ii) calculating, at the security component, a second identifier based on the input data. The method further includes (iii) conveying the second identifier to the safety component, and (iv) verifying, at the safety component, a first identifier based on the second identifier.

    Abstract translation: 提出了一种用于处理数据的方法,并且包括(i)将输入数据从安全组件传送到安全组件,以及(ii)在安全组件处基于输入数据计算第二标识符。 该方法还包括(iii)将第二标识符传送到安全部件,以及(iv)在安全部件处,基于第二标识符来验证第一标识符。

    Trace based measurement architecture
    8.
    发明授权
    Trace based measurement architecture 有权
    基于跟踪的测量架构

    公开(公告)号:US09092560B2

    公开(公告)日:2015-07-28

    申请号:US13632529

    申请日:2012-10-01

    Inventor: Albrecht Mayer

    CPC classification number: G06F11/3476

    Abstract: A method for performing trace based measurement for a plurality of CPUs in parallel includes receiving a signal to perform a CPU parallel trace mode and enabling a parallel trace mode multiplexer to output all trace data, representing all data writes to the local memory, to a single observation unit. In one embodiment, the single observation unit is a processor observation block (POB), and in another embodiment, a bus observation block (BOB). If the single observation unit is a BOB, then the parallel trace mode multiplexer first routes the local memory data trace through a BOB adaptation layer to convert the CPU trace output data to data which is understood by the BOB.

    Abstract translation: 用于并行地对多个CPU进行基于跟踪的测量的方法包括:接收信号以执行CPU并行跟踪模式,并使并行跟踪模式多路复用器将表示对本地存储器的所有数据写入的所有跟踪数据输出到单个 观察单位。 在一个实施例中,单个观察单元是处理器观察块(POB),在另一个实施例中是总线观察块(BOB)。 如果单个观察单元是BOB,则并行跟踪模式多路复用器首先通过BOB适配层路由本地存储器数据跟踪,以将CPU跟踪输出数据转换为由BOB理解的数据。

    TRACING INSTRUCTION POINTERS AND DATA ACCESSES
    9.
    发明申请
    TRACING INSTRUCTION POINTERS AND DATA ACCESSES 审中-公开
    追踪指示点和数据访问

    公开(公告)号:US20140164848A1

    公开(公告)日:2014-06-12

    申请号:US13898065

    申请日:2013-05-20

    Inventor: Albrecht Mayer

    CPC classification number: G06F11/3636

    Abstract: A system for tracing instruction pointers and data accesses in a plurality of processor cores includes a plurality of trace units. The plurality of trace units include at least one first trace unit configured to perform an instruction pointer trace and at least one second trace unit configured to perform a data trace. The system includes a multiplexer coupled between the plurality of processor cores and the plurality of trace units. The multiplexer is configured to selectively connect one trace unit of the plurality of trace units to one processor core of the plurality of processor cores. The multiplexer is configured during run time based on one of hardware triggers and software.

    Abstract translation: 用于在多个处理器核心中跟踪指令指针和数据访问的系统包括多个跟踪单元。 多个跟踪单元包括被配置为执行指令指针跟踪的至少一个第一跟踪单元和被配置为执行数据跟踪的至少一个第二跟踪单元。 该系统包括耦合在多个处理器核心和多个跟踪单元之间的多路复用器。 多路复用器被配置为选择性地将多个跟踪单元的跟踪单元连接到多个处理器核心中的一个处理器核心。 多路复用器根据硬件触发器和软件之一在运行时配置。

    Systems, devices, and methods for connectors

    公开(公告)号:US12034256B2

    公开(公告)日:2024-07-09

    申请号:US17329559

    申请日:2021-05-25

    CPC classification number: H01R13/665 G06F13/4081

    Abstract: A circuitry is disclosed having one or more circuits and a connector portion coupled that is to the one or more circuits. The connector portion includes a plurality of pins, at least some of the pins having assigned functionality, and wherein at least one first pin is to activate a mechanism to bring the one or more circuits into an electrically safe state. The circuitry is configured, in case the connector portion is coupled with a first connector in a first orientation, to allow the one or more circuits to operate properly via the connector portion. The circuitry is also configured so that in a case where the connector portion is coupled with a second connector in a second orientation different from the first orientation, the at least one first pin of the plurality of pins receives a reference potential that triggers activation of a safety mechanism.

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