The present invention provides a dynamic immune end-to-end trusted sharing method for
multimodal data in a vehicle-road-cloud
system, belonging to the field of
information security technology. The method includes: using a vehicle-side or roadside unit with a digital
certificate as the sending end, securely encapsulating the original
multimodal data to generate a secure encapsulation result, and transmitting the secure encapsulation result to a cloud platform; using the cloud platform as the receiving end, recovering the original
multimodal data; using the cloud platform to perform a
trustworthiness assessment of the sending end based on the recovered original multimodal data (both current and historical), obtaining multi-dimensional assessment indicators; using a preset trust fusion model combined with the multi-dimensional assessment indicators to calculate and generate a dynamic trust value for the sending end; and triggering corresponding security handling strategies based on the dynamic trust value. This invention, through the synergistic linkage of dynamic trust value and security strategies, enables the
system to possess adaptive
perception and proactive
immunity against internal threats, effectively ensuring the
trustworthiness of shared data.