Intelligent Internet of Vehicles credible data encryption method and system based on block chain

Abstract

The invention discloses an intelligent Internet of Vehicles credible data encryption method and system based on a block chain, and designs a privacy protection method with low power consumption and credible data integrity verification by adopting Merkle-hash authentication in the block chain and a homomorphic encryption technology of an elliptic curve. On one hand, the distributed characteristicsof the Merkle-hash tree are adopted to achieve integrity verification of the Internet of Vehicles trusted data and the function of positioning the wrong vehicle intelligent terminal; on the other hand, a homomorphic encryption technology based on an elliptic curve is adopted to map data transmitted by the vehicle intelligent terminal into encrypted data points, so that lower energy consumption isrealized, and encryption from the vehicle terminal to the vehicle terminal is realized. The method has the advantages of high confidentiality, low calculation amount and low communication traffic overhead, can meet the requirements of the Internet of Vehicles for trusted data security and transmission delay, and is suitable for large-scale Internet of Vehicles intelligent terminal data transmission and instant messaging.

Description

technical field [0001] The invention relates to the field of intelligent transportation service security, in particular to a block chain-based data encryption method and system for Internet of Vehicles. Background technique [0002] With the popularization of mobile Internet applications, coupled with the rapid development of artificial intelligence technology and 5G wireless communication technology, the level of intelligent transportation services has been greatly improved. The Intelligent Internet of Vehicles (IIOV) has become a new direction for the integration and development of the Internet of Things and intelligent transportation systems. The traditional Internet of Vehicles consists of end systems, management systems and cloud systems. The vehicle operation information platform adopts cloud architecture, including cloud computing functions such as virtualization, security authentication, real-time interaction, and mass storage. It focuses on data aggregation, calcula...

AI Technical Summary

Problems solved by technology

[0003]However, there are three problems in the data transmission of the Internet of Vehicles: one is the privacy leakage of the vehicle terminal data in the collection; Trust issues; the third is the data storage security protection issues that will arise when the car factory data is aggregated into a data center

Hop-by-hop encryption can effectively deal with external attacks, but it exposes the plaintext data to the aggregation node. If the aggregation node is captured and controlled, it will bring the risk of sensitive information leakage

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