Identity authentication and key agreement method of Internet of Vehicles equipment based on block chain

Abstract

The present invention proposes a block chain-based method for identity authentication and key negotiation of Internet of Vehicles devices, which belongs to the field of information security technology and aims to improve the efficiency of identity authentication and key negotiation processes for Internet of Vehicles devices under the premise of ensuring security , the implementation steps are: Initialize the alliance blockchain network including the Internet of Vehicles equipment; each central node CA n Common node Com managed for it n,m Distribute private key and public key certificates, and store public key certificates at the same time; Node Com u,i To Node Com w,j Send authentication request message; Node Com w,j To Node Com u,i The identity of the node is authenticated; the node Com w,j To Node Com u,i Send authentication response message; node Com u,i To Node Com w,j The identity of the node is authenticated; the node Com u,i and Node Com w,j Computes the result of the key agreement.

Description

technical field [0001] The invention belongs to the technical field of information security, and relates to an identity authentication and key negotiation method for an Internet of Vehicles device, and in particular to a block chain-based identity authentication and key agreement method for an Internet of Vehicles device. Background technique [0002] The Internet of Vehicles is a network that uses a new generation of information and communication technology to realize the all-round network connection of the intra-vehicle network, the inter-vehicle network, and the vehicle-mounted mobile Internet, so as to improve the intelligent level and automatic driving ability of automobiles, thereby improving traffic efficiency and driving experience. system. The Internet of Vehicles is actually the supporting infrastructure for unmanned vehicles. It not only provides important information elements such as vehicle location, speed and route information, driver information, road congesti...

AI Technical Summary

Problems solved by technology

Although this method can complete identity security authentication without relying on a third party in an insecure network environment, the distributed blockchain CA system constructed has certain advantages in security compared with the traditional distributed CA system, but the dual-chain 2. The hybrid structure of the dual block type leads to a large amount of calculation and high communication overhead for the IoV device in the identity authentication process, so the efficiency in the identity authentication process is low

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