Method for protecting privacy of vehicle ad hoc network based on signcryption

Abstract

The invention request to protect a method for protecting privacy of a vehicle ad hoc network based on signcryption. The method is used for solving a privacy protection problem when a vehicle node (OBU) under an environment of the Internet of vehicles communicates with a road side unit (RSU). On the basis of a digital signature mechanism and a pseudonym mechanism, the invention provides a signcryption mechanism which is an integrated scheme synthesizing encryption and signature; in the method, privacy protection on the vehicle node is achieved via the pseudonym mechanism. Under the environmentof the Internet of vehicles, the vehicle node sends own identity information to a TRA to generate a pseudonym, a secret key generation center generates a secret key corresponding to a private key of the pseudonym, the vehicle node uses the generated pseudonym and the secrete key to perform signcryption on a message and sends the message to the road side unit, after receiving the message, the roadside unit uses the private key to decrypt the message and verify the same, and the message is accepted if the verification is passed.

Description

technical field [0001] The invention belongs to the field of cryptography and the safety of the Internet of Vehicles, in particular to the privacy protection of users in the environment of the Internet of Vehicles. Background technique [0002] According to statistics on crashes, more than 6 million automobile accidents occur on U.S. highways each year. Probably more than 42,000 people died due to such accidents, and at the same time, about 3 million people were injured, and the economic losses caused by this exceeded 23 billion. Astonishingly, in the United States, about 5 people die in these accidents every hour, or 1 person every 12 minutes. To mitigate the threat of these potential crashes and improve the driver's driving experience, automakers and telecommunications companies have made great efforts to equip every car with wireless equipment. In this way, vehicles can communicate with each other, as well as between vehicles and roadside infrastructure at key road node...

AI Technical Summary

Problems solved by technology

People are unlikely to accept and participate in VANET when they are worried about their security and personal privacy, which seriously restricts the further development and application of VANET

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