Method for protection from cyber attacks to a vehicle, and corresponding device

Abstract

A method for protecting against cyber attacks in a communication network of a vehicle, including the steps of acquiring dominant voltage measurements; obtaining an electrical characteristic of nodes that transmit messages by acquiring consecutive groups of voltage measurements at receiving nodes and calculating a distribution thereof; calculating values of distribution statistics; calculating a cumulative voltage deviation for each value of statistic; and obtaining a voltage profile by adding the cumulative voltage deviations of each statistic, executing a malicious-node detection procedure and then executing a transmitting-node identification procedure including comparing the at least one characteristic parameter against all the corresponding characteristic parameters of all the messages, defining a range of variation of the characteristic parameter with respect to a given number of previous samples; and evaluating whether the value of the parameter falls within the range of variation of one of the messages and identifying as malicious the node that transmits the message.

CPC Classifications