Proxy anonymous communication method based on homomorphic encryption scheme

The invention discloses an agent type anonymous communication method based on a homomorphic encryption scheme. The agent type anonymous communication method comprises the steps that S1, a sending endcarries out original encryption on target data to obtain ciphertext data c1; S2, the sending end sends the ciphertext data c1 to a server; S3, the server performs homomorphic encryption on the ciphertext data c1 to obtain ciphertext data c2; S4, the server sends the ciphertext data c2 to a receiving end; and S5, the receiving end decrypts the ciphertext data c2 to obtain ciphertext data c1. The method is mainly used for reliably and completely transmitting private data (mainly for position data) of participating vehicles in the Internet of Vehicles, safe operation of the participating vehiclesin the Internet of Vehicles is achieved by improving the safety and confidentiality of the position data of the participating vehicles in the Internet of Vehicles, and certain economic benefits and engineering practicability are achieved.