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公开(公告)号：US20210360395A1
公开(公告)日：2021-11-18
申请号：US17302005
申请日：2021-04-21
Applicant: NXP B.V.
Abstract: In accordance with a first aspect of the present disclosure, an ultra-wideband communication node is provided, comprising: an ultra-wideband communication unit configured to transmit one or more messages to a plurality of external responder nodes and to receive one or more responses from said responder nodes; a processing unit configured to use a common cryptographic session key to encrypt said messages, wherein said common cryptographic session key is a key shared between the ultra-wideband communication node and all the external responder nodes; wherein the processing unit is further configured to use responder-specific cryptographic session keys to decrypt the responses and/or to encrypt further messages to the responder nodes, and wherein each individual one of said responder-specific cryptographic session keys is a key shared between the ultra-wideband communication node and one of the external responder nodes.
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公开(公告)号：US11736937B2
公开(公告)日：2023-08-22
申请号：US17302005
申请日：2021-04-21
Applicant: NXP B.V.
CPC classification number: H04W12/037 , H04L9/085 , H04L9/30 , H04L9/3273 , H04W4/06 , H04W4/80
Abstract: In accordance with a first aspect of the present disclosure, an ultra-wideband communication node is provided, comprising: an ultra-wideband communication unit configured to transmit one or more messages to a plurality of external responder nodes and to receive one or more responses from said responder nodes; a processing unit configured to use a common cryptographic session key to encrypt said messages, wherein said common cryptographic session key is a key shared between the ultra-wideband communication node and all the external responder nodes; wherein the processing unit is further configured to use responder-specific cryptographic session keys to decrypt the responses and/or to encrypt further messages to the responder nodes, and wherein each individual one of said responder-specific cryptographic session keys is a key shared between the ultra-wideband communication node and one of the external responder nodes.
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公开(公告)号：US20220400008A1
公开(公告)日：2022-12-15
申请号：US17663740
申请日：2022-05-17
Applicant: NXP B.V.
Abstract: A communication device is provided, comprising: an ultra-wideband device configured to establish a communication session with an external communication device; a secure element configured to generate a session key for use in said communication session and an authentication key derived from said session key; a processing unit configured to execute an application; wherein the secure element is further configured to transfer the session key and the authentication key to the UWB device; wherein the UWB device is configured to add, upon or after receiving data for use by said application, a cryptographic tag to said data; wherein the processing unit is configured to receive said data and the cryptographic tag, and to forward said data and cryptographic tag to the secure element; wherein the secure element is configured to verify said cryptographic tag and to return, upon or after a positive verification of the cryptographic tag, a signed confirmation.
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4.发明申请公开(公告)号：US20200228331A1
公开(公告)日：2020-07-16
申请号：US16737194
申请日：2020-01-08
Applicant: NXP B.V.
Inventor： Hugues Jean Marie de Perthuis , Frank Leong
Abstract: Disclosed are methods and devices for deriving keys for coding the contents of data frames, which are to be transmitted in a keyless entry system during an ultra-wide band ranging session between a transceiver device coupled to a base structure to be opened and closed and/or to be locked and unlocked, and a mobile transceiver device associated with the structure-coupled transceiver device.
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公开(公告)号：US11689363B2
公开(公告)日：2023-06-27
申请号：US17304020
申请日：2021-06-14
Applicant: NXP B.V.
Inventor： Sujash Sen Gupta , Venkatesh H Nayak G , Hugues Jean Marie de Perthuis
IPC: H04L9/08
CPC classification number: H04L9/088 , H04L9/0861
Abstract: In accordance with a first aspect of the present disclosure, a method is conceived for setting permissions for cryptographic keys in a cryptographic processing system, comprising: generating at least one cryptographic key to be protected; assigning one or more configurable properties to said cryptographic key; wherein the configurable properties define at least one of a permission of performing a first set of predefined operations on the cryptographic key and a permission of using the cryptographic key for performing a second set of predefined operations. In accordance with a second aspect of the present disclosure, a corresponding computer program is provided. In accordance with a third aspect of the present disclosure, a corresponding cryptographic processing system is provided.
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Patent Agency Ranking
公开(公告)号：US11102000B2
公开(公告)日：2021-08-24
申请号：US16737194
申请日：2020-01-08
Applicant: NXP B.V.
Inventor： Hugues Jean Marie de Perthuis , Frank Leong
Abstract: Disclosed are methods and devices for deriving keys for coding the contents of data frames, which are to be transmitted in a keyless entry system during an ultra-wide band ranging session between a transceiver device coupled to a base structure to be opened and closed and/or to be locked and unlocked, and a mobile transceiver device associated with the structure-coupled transceiver device.
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7.发明申请公开(公告)号：US20210258795A1
公开(公告)日：2021-08-19
申请号：US17147801
申请日：2021-01-13
Applicant: NXP B.V.
Abstract: In accordance with the first aspect of the present disclosure, an ultra-wideband communication node is provided, comprising: an ultra-wideband communication unit configured to transmit one or more ultra-wideband frames to an external device; a processing unit configured to determine scrambled timestamp sequences for said ultra-wideband frames; wherein the processing unit is further configured to determine designated time slots, within which said scrambled timestamp sequences are to be received by said external device.
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公开(公告)号：US11503591B2
公开(公告)日：2022-11-15
申请号：US17018313
申请日：2020-09-11
Applicant: NXP B.V.
Inventor： Hugues Jean Marie de Perthuis , Frank Leong
Abstract: A method is described for transmitting a payload between a mobile device and a plurality of anchor devices via a ranging-capable physical layer, in particular an ultra-wide band (UWB), communication. The method comprises: i) transmitting, by the mobile device, a first message to a first anchor device and to a second anchor device, wherein the first message comprises a synchronization protocol, ii) establishing, upon receiving the first message, a first time slot for the first anchor device and a second time slot for the second anchor device based on the synchronization protocol, iii) transmitting, by the mobile device, a second message to the first anchor device and/or to the second anchor device, wherein the second message comprises a mobile device payload, iv) transmitting, upon receiving the second message by the first anchor device, a third message to the mobile device during the first time slot by the first anchor device, wherein the third message comprises a target device payload, and/or v) transmitting, upon receiving the second message by the second anchor device, the third message to the mobile device during the second time slot by the second anchor device.
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9.发明申请公开(公告)号：US20210377741A1
公开(公告)日：2021-12-02
申请号：US17302275
申请日：2021-04-29
Applicant: NXP B.V.
Inventor： Hugues Jean Marie de Perthuis , Frank Leong , Sören Heisrath , Srivathsa Masthi Parthasarathi
IPC: H04W12/64 , H04W12/041 , H04W12/069 , H04W60/04
Abstract: There is described a system and method of committing a transaction within a UWB network comprising a plurality of anchors, the UWB network covering a predetermined area having at least one trigger area, the method comprising waking up a mobile device upon entering the predetermined area, receiving initial network data at the mobile device, verifying that the UWB network is genuine based on the initial network data, initiating communication between the mobile device and an anchor, including partial mutual authentication, generating a session key for secure communication between the mobile device and the UWB network, tracking the location of the mobile device within the predetermined area based on secure communication between the mobile device and one or more anchors within the UWB network using the session key, and committing the transaction, if the location of the mobile device is within the at least one trigger area.
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公开(公告)号：US10903868B2
公开(公告)日：2021-01-26
申请号：US16718061
申请日：2019-12-17
Applicant: NXP B.V.
Inventor： Hugues Jean Marie de Perthuis , Frank Leong , Sören Heisrath , Diwakar Subraveti , Srivathsa Masthi Parthasarathi
IPC: H04B1/3822 , H04W4/02 , H04W4/021 , G01S13/74 , G07C9/00
Abstract: Disclosed is a RF system (100) having at least one transceiver node device (110, 112, 114, 116, 118, 120) that is capable to assume, at a controllable point in time and/or for a controllable time period, each one of the following roles (210, 220, 230, 240): a first role (210) comprising listening or answering to a message from an active communication session, in particular ranging sessions, a second role (220) comprising listening for new communication sessions, in particular ranging sessions, a third role (230) comprising staying idle, and optionally a third role (230) comprising scanning for ongoing communication sessions, in particular ranging sessions, of other RF systems. The RF system (100) further comprises a controller device (134) communicatively interlinked with the at least one, in particular each, transceiver node device (110, 112, 114, 116, 118, 120) and capable to control an assignment of roles to the at least one, in particular each, transceiver node device, in particular to control for a transceiver node device a point in time to assume a role and/or a duration of performing a role and/or a duty cycle of performing a role (210, 220, 230, 240).
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