MOBILE DEVICE CERTIFICATE DISTRIBUTION
    4.
    发明申请

    公开(公告)号:US20190044738A1

    公开(公告)日:2019-02-07

    申请号:US15971314

    申请日:2018-05-04

    Abstract: Disclosed herein are mobile device distribution methods and apparatuses. In embodiments, a system for managing cryptographic exchanges between devices capable of operating in accord with the Wireless Access Vehicular Environment (WAVE) functionality may comprise a device operable in at least a first environment in which the device is configured to: receive a first message with an associated first certificate chain; and add a second certificate chain associated with the device to a second message. The device may further determine if the first certificate chain includes an unknown certificate, and if so, set a flag associated with the second message; as well as determine if all certificates in the first certificate chain are known, and if so, check if message has the set flag, and if the flag is set, then unset the flag; and send the second message. Other embodiments may be disclosed and claimed.

    EGO ACTIONS IN RESPONSE TO MISBEHAVING VEHICLE IDENTIFICATION

    公开(公告)号:US20220355807A1

    公开(公告)日:2022-11-10

    申请号:US17858676

    申请日:2022-07-06

    Abstract: Systems, apparatus, methods, and techniques for an ego vehicle to respond to detecting misbehaving information from remote vehicles are provided. An ego vehicle, in addition to reporting misbehaving vehicles to a misbehavior authority via a vehicle-to-anything communication network, can, take additional actions based in part on how confident the ego vehicle is about the evidence of misbehavior. Where the confidence is high the ego vehicle can simply discard the misbehaving data and provide an alternative estimate for such data from alternative sources. Where the confidence is not high the ego vehicle can request assistance from neighboring vehicles and roadside units to provide independent estimates of the data to increase confidence in the evidence of misbehavior.

    Methods and arrangements for vehicle-to-vehicle communications

    公开(公告)号:US10805086B2

    公开(公告)日:2020-10-13

    申请号:US15848785

    申请日:2017-12-20

    Abstract: Logic may implement protocols and procedures for vehicle-to-vehicle communications for platooning. Logic may implement a communications topology to distinguish time-critical communications from non-time-critical communications. Logic may sign time-critical communications with a message authentication code (MAC) algorithm with a hash function such as Keccak MAC or a Cipher-based MAC. Logic may generate a MAC based on pairwise, symmetric keys to sign the time-critical communications. Logic may sign non-time-critical communications with a digital signature. Logic may encrypt non-time-critical communications. Logic may append a certificate to non-time-critical communications. Logic may append a header to messages to create data packets and may include a packet type to identify time-critical communications. Logic may decode and verify the time-critical messages with a pairwise symmetric key. And logic may prioritize time-critical communications to meet a specified latency.

    Voltage encoded MAC and bus scrambling

    公开(公告)号:US11949793B2

    公开(公告)日:2024-04-02

    申请号:US17868204

    申请日:2022-07-19

    Abstract: Various embodiments are generally directed to providing authentication and confidentiality mechanisms for message communication over an in-vehicle network. For example, authentication data associated with a communicating node may be transmitted over the network by encoding different predefined voltage levels on top of the message bits of the message being communicated. Different voltage levels may represent different encodings, such as a bit-pair or any bit combination of the authentication data. In a further example, messaging confidentiality between at least two communicating nodes may be achieved by pseudo-randomly flipping, or scrambling, the dominant and recessive voltages of the entire message frame at the analog level based on a pseudo-random control bit sequence.

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