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公开(公告)号：US20170070890A1
公开(公告)日：2017-03-09
申请号：US15258117
申请日：2016-09-07
申请人： ARM IP Limited , ARM Ltd
摘要： A method for verifying the integrity of data in a message by a data processing device, the message comprising a plurality of packets, the method comprising: receiving, at the device from a first resource, a manifest associated with the message, the manifest comprising a plurality of group check values for the plurality of packets; receiving, at the device, from the first or a different resource, the message; generating a first progression of rolling hashes for the plurality of packets; deriving group check values from the first progression of rolling hashes for groups of the plurality of packets along one or more paths; verifying the integrity of the data in the message based on or in response to a determination that the derived group check values correspond to the plurality of group check values in the manifest.
摘要翻译： 一种用于由数据处理设备验证消息中的数据的完整性的方法，所述消息包括多个分组，所述方法包括：在所述设备处从所述设备从第一资源接收与所述消息相关联的清单，所述清单包括 多个分组的多个组检查值; 在所述设备处从所述第一或不同资源接收所述消息; 产生用于所述多个分组的滚动哈希的第一进程; 从沿着一个或多个路径的多个分组的组的滚动哈希的第一进程中导出组检查值; 基于或响应于导出的组检查值对应于清单中的多个组检查值的确定来验证消息中的数据的完整性。
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公开(公告)号：US20210064789A1
公开(公告)日：2021-03-04
申请号：US17048521
申请日：2019-04-18
申请人： Arm Limited
摘要： A method and authenticator for authenticating a device in a system using the electrical properties of the device is disclosed. Embodiments of the disclosure enable authentication by receiving a plurality of input seed values from a requestor. For each input seed value, load stimuli are generated to produce an electrical load sequence on a power delivery network powering at least part of the system. Noise induced in the power delivery network is measured in response to the electrical load sequence using one or more sensors located on the power delivery network. Based on the measured noise, a dynamic response property (magnitude and phase response as a function of frequency) of the power delivery network corresponding to a respective input seed value can be determined and returned to the requestor.
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公开(公告)号：US11693992B2
公开(公告)日：2023-07-04
申请号：US17048530
申请日：2019-04-18
申请人： Arm Limited
IPC分类号： G06F21/44 , H04L9/08 , G06F21/75 , G01R19/165 , G01R31/08 , G06F1/28 , H04L9/00 , H04L9/32 , G01R19/00 , G01R29/26
CPC分类号： G06F21/755 , G01R19/0053 , G01R19/16585 , G01R29/26 , G01R31/086 , G01R31/088 , G06F1/28 , G06F21/44 , H04L9/003 , H04L9/085 , H04L9/3242 , H04L9/3265
摘要： An apparatus and system for remote attestation of a power delivery network is disclosed. Embodiments of the disclosure enable remote attestation of the power delivery network by storing a trusted golden reference waveform in secure memory. The trusted golden reference waveform characterizes a power delivery network in response to a load generated on the power delivery network. A remote cloud server generates a server-generated remote attestation of the power delivery network by receiving an attestation packet from the power delivery network and verifying whether the attestation packet is consistent with an expected power delivery network identity.
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64.发明授权公开(公告)号：US11620413B2
公开(公告)日：2023-04-04
申请号：US17048502
申请日：2019-04-18
申请人： Arm Limited
IPC分类号： G06F21/75 , G01R19/165 , G01R31/08 , G06F1/28 , G06F21/44 , H04L9/00 , H04L9/08 , H04L9/32 , G01R19/00 , G01R29/26
摘要： An apparatus and method for detecting a change in electrical properties in a system is disclosed. Embodiments of the disclosure enable the detection of a change in electrical properties in a system by, in response to a load generated on a power delivery network power in at least part of the system, measuring noise induced in the power delivery network in response to the load. Based on the measured noise, a dynamic-response property of the power delivery network is determined and the dynamic-response property is compared to a stored reference dynamic-response property of the power delivery network based on a predetermined load. In the event of a difference between the dynamic-response property and the reference dynamic-response property, a response to the event is triggered to indicate tampering with the power delivery network.
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公开(公告)号：US11232236B2
公开(公告)日：2022-01-25
申请号：US17048521
申请日：2019-04-18
申请人： Arm Limited
IPC分类号： H04L29/06 , G06F21/75 , G01R19/165 , G01R31/08 , G06F1/28 , G06F21/44 , H04L9/00 , H04L9/08 , H04L9/32 , G01R19/00 , G01R29/26
摘要： A method and authenticator for authenticating a device in a system using the electrical properties of the device is disclosed. Embodiments of the disclosure enable authentication by receiving a plurality of input seed values from a requestor. For each input seed value, load stimuli are generated to produce an electrical load sequence on a power delivery network powering at least part of the system. Noise induced in the power delivery network is measured in response to the electrical load sequence using one or more sensors located on the power delivery network. Based on the measured noise, a dynamic response property (magnitude and phase response as a function of frequency) of the power delivery network corresponding to a respective input seed value can be determined and returned to the requestor.
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公开(公告)号：US10956619B2
公开(公告)日：2021-03-23
申请号：US16060116
申请日：2016-12-02
申请人： ARM Limited
摘要： A device comprising: a processing element; a data store, coupled to the processing element, the data store comprising a non-volatile data store having a trusted region for trusted code and an untrusted region for untrusted code; a security component, coupled to the processing element and the data store, wherein the security component is configured to, in response to one of a power event occurring at the device and receiving a trigger signal, send a first signal to the processing element and the data store, and wherein the processing element is configured to execute trusted code in response to the first signal.
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67.发明申请公开(公告)号：US20210150071A1
公开(公告)日：2021-05-20
申请号：US17048502
申请日：2019-04-18
申请人： Arm Limited
IPC分类号： G06F21/75 , H04L9/00 , G01R19/00 , G01R19/165 , G01R29/26
摘要： An apparatus and method for detecting a change in electrical properties in a system is disclosed. Embodiments of the disclosure enable the detection of a change in electrical properties in a system by, in response to a load generated on a power delivery network power in at least part of the system, measuring noise induced in the power delivery network in response to the load. Based on the measured noise, a dynamic-response property of the power delivery network is determined and the dynamic-response property is compared to a stored reference dynamic-response property of the power delivery network based on a predetermined load. In the event of a difference between the dynamic-response property and the reference dynamic-response property, a response to the event is triggered to indicate tampering with the power delivery network.
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公开(公告)号：US20210138464A1
公开(公告)日：2021-05-13
申请号：US17052990
申请日：2019-05-07
申请人： Arm Limited
摘要： A fluid delivery control device comprising; (i) at least one inlet portal to allow fluid passage into a chamber; (ii) at least one outlet portal to allow fluid passage from the chamber; (iii) at least one biosensor; (iv) at least one actuator; and wherein the at least one biosensor is in fluid communication with said fluid and is associated with a valve having actuator capability, the valve having actuator capability being in communication with sensor measured conditions upon which the valve permits or inhibits delivery of the fluid from the chamber.
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公开(公告)号：US20210097207A1
公开(公告)日：2021-04-01
申请号：US17048530
申请日：2019-04-18
申请人： Arm Limited
IPC分类号： G06F21/75 , H04L9/00 , H04L9/32 , G01R19/165
摘要： An apparatus and system for remote attestation of a power delivery network is disclosed. Embodiments of the disclosure enable remote attestation of the power delivery network by storing a trusted golden reference waveform in secure memory. The trusted golden reference waveform characterizes a power delivery network in response to a load generated on the power delivery network. A remote cloud server generates a server-generated remote attestation of the power delivery network by receiving an attestation packet from the power delivery network and verifying whether the attestation packet is consistent with an expected power delivery network identity.
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公开(公告)号：US11494256B2
公开(公告)日：2022-11-08
申请号：US17261217
申请日：2019-06-06
申请人： Arm Limited
发明人： Milosch Meriac , Emre Özer , Xabier Iturbe , Balaji Venu , Shidhartha Das
摘要： An apparatus comprises a plurality of redundant processing units to perform data processing redundantly in lockstep; common mode fault detection circuitry to detect an event indicative of a potential common mode fault affecting each of the plurality of redundant processing units; a memory shared between the plurality of redundant processing units; and memory checking circuitry to perform a memory scanning operation to scan at least part of the memory for errors; in which the memory checking circuitry performs the memory scanning operation in response to a common mode fault signal generated by the common mode fault detection circuitry indicating that the event indicative of a potential common mode fault has been detected.
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