A safe communication method based on smart car

Abstract

The invention discloses a safe communication method based on a smart car. The steps are as follows: a smart car client randomly generates a number as a key of a communication symmetric encryption algorithm and verifies the server; the smart car client uses an asymmetric encryption algorithm to generate a symmetric The key is sent to the server; the server decrypts the message with the private key; encrypts the handshake text "hello, zju roboy!" with a symmetric encryption algorithm and replies to the client; the client decrypts the handshake text with a symmetric encryption algorithm; if the verification is successful, uses a symmetric encryption algorithm Encrypt the number and mask of the smart car; the server decrypts the verification information, obtains the number and mask, and verifies the identity of the smart car; the smart car and the server use a symmetric encryption algorithm for two-way communication on the established connection. The invention can solve three hidden dangers existing in the communication between the smart car and the server, namely, the communication content is eavesdropped, the communication identity is disguised, and the communication content is tampered with.

Description

technical field [0001] The invention relates to a safe communication method for an intelligent vehicle. Background technique [0002] Communication between the smart car and the server in the form of plain text has great security risks. Specifically, there are three security risks as follows: the communication content is eavesdropped, the communication identity is disguised, and the communication content is tampered with. [0003] Since the above information is transmitted in the Internet, and the so-called Internet is composed of networks that can connect to the whole world, no matter where the server and client are in communication, the routers and switches on the entire communication line Network equipment such as bridges and bridges cannot all be the private property of a certain person, so there is no guarantee that these links will not be eavesdropped, and the identity will be disguised and tampered with. Once a message transmitted in plaintext is stolen, the stealin...

AI Technical Summary

Problems solved by technology

The server does not refuse any request to establish a connection, so there is a situation where someone pretends to be a smart car and sends false smart car information to the server, while the real smart car is at risk of being stolen

It is also possible that someone pretends to be the server and sends false control commands to the smart car, which poses a great security risk

Since the integrity of the message cannot be verified during the communication between the smart car and the server in the form of plain text, that is, whether it has been tampered with, there may be a security risk that the message is modified by a hacker in the middle

Images