Systems and methods for enabling trusted communications between controllers

A method implemented on a gateway of a vehicle, comprising:

• receiving a controller signature and data from a first controller of the vehicle, wherein the controller signature was generated by a second controller of the vehicle based at least in part on a portion of the data, wherein the second controller is configured to provide the data to the first controller and wherein the first controller is configured to relay the data to the gateway;
• verifying the controller signature;
• obtaining a gateway signature, wherein the gateway signature is generated based on at least a portion of the data using a private key of the gateway;
• and
• transmitting the gateway signature to the first controller, wherein the first controller is configured to process the data after the controller signature has been verified by the gateway.

A non-transitory computer-readable storage medium storing instructions that when executed by one or more processors cause the one or more processors to:

• receive a controller signature and data from a first controller of a vehicle, wherein the controller signature was generated by a second controller of the vehicle based at least in part on a portion of the data, wherein the second controller is configured to provide the data to the first controller and wherein the first controller is configured to relay the data to a gateway;
• verify the controller signature;
• obtain a gateway signature, wherein the gateway signature is generated based on at least a portion of the data using a private key of the gateway;
• and
• transmit the gateway signature to the first controller, wherein the first controller is configured to process the data after the controller signature has been verified by the gateway.