Abstract: A first connected message broadcast from a first vehicle and a second connected message broadcast from a second vehicle is received, each of the first and second connected messages including proof-of-work computed from connected vehicle data regarding a third vehicle. The first and second connected messages are authenticated, responsive to a comparison of the proof-of-work for the third vehicle included in the first connected message and the proof-of-work for the third vehicle included in the second connected message. The connected vehicle data in the first connected message broadcast or second connected message broadcast is utilized for autonomous vehicle operations or driver-assistance vehicle operations, responsive to the proof-of-work being a match.

Abstract: A computer includes a processor and a memory storing instructions executable by the processor to receive a plurality of read rates from respective subscribers in a vehicle, instruct a publisher to publish at a highest read rate of the read rates, and in response to the subscriber with the highest read rate of the subscribers being offline, instruct the publisher to publish at a next highest read rate of the read rates.

Abstract: A vehicle system includes a manager module, a node, and a wired vehicle communications network connecting the node and the manager module. The manager module is programmed to receive a request to publish or subscribe to a message topic from the node; authenticate the node using the request; authorize the node by verifying that the node is on a permission list for the message topic; and upon authenticating and authorizing the node, transmit a symmetric key to the node. The node is programmed to encrypt or decrypt messages about the message topic using the symmetric key.

Abstract: A computer includes a processor and a memory, the memory storing instructions executable by the processor to collect a digital image that includes a plurality of pixels with a first sensor, input a reference data string, a key data string, and a set of collected data from a second sensor into a permutation generator that outputs a watermark data string, and embed the watermark data string in the digital image at specified pixels in the plurality of pixels.

Abstract: A computer includes a processor and a memory, the memory storing instructions executable by the processor to collect a digital image that includes a plurality of pixels with a first sensor, input a reference data string, a key data string, and a set of collected data from a second sensor into a permutation generator that outputs a watermark data string, and embed the watermark data string in the digital image at specified pixels in the plurality of pixels.

Abstract: A first connected message broadcast from a first vehicle and a second connected message broadcast from a second vehicle is received, each of the first and second connected messages including proof-of-work computed from connected vehicle data regarding a third vehicle. The first and second connected messages are authenticated, responsive to a comparison of the proof-of-work for the third vehicle included in the first connected message and the proof-of-work for the third vehicle included in the second connected message. The connected vehicle data in the first connected message broadcast or second connected message broadcast is utilized for autonomous vehicle operations or driver-assistance vehicle operations, responsive to the proof-of-work being a match.

Abstract: A computer includes a processor and a memory, the memory storing instructions executable by the processor to arrange data collected by a plurality of sequentially arranged emitters in a sensor according to a nonsequential numerical order of the emitters, transmit the nonsequential numerical order to a vehicle computer according to a secure protocol, and transmit the data to the vehicle computer.

Abstract: A computer includes a processor and a memory, the memory storing instructions executable by the processor to arrange data collected by a plurality of sequentially arranged emitters in a sensor according to a nonsequential numerical order of the emitters, transmit the nonsequential numerical order to a vehicle computer according to a secure protocol, and transmit the data to the vehicle computer.