Multi-path communication method based on secret sharing in vehicle-mounted ad hoc network environment

Abstract

The invention relates to a multi-path communication method based on secret sharing in a vehicle-mounted ad hoc network environment, which comprises the following steps: finding a plurality of disjointpaths between a starting node and a target node by utilizing a Latin square matrix, and dividing a symmetric encryption key into a plurality of sub-keys by utilizing secret sharing. Meanwhile, the encrypted message is also divided into a plurality of parts, an equivalent commitment is generated for each sub-key to support fault tolerance, and meanwhile, a current timestamp is selected to resist areplay attack, the encrypted sub-key, the ciphertext and the commitment are jointly transmitted to the target node through each path,the target node reconstructs a key by using the sub-key, and decrypts the ciphertext by using the key to obtain an original message. According to the communication method, the network load is greatly reduced, the information transmission efficiency is improved, andmeanwhile the communication method has the advantages of being good in stability and not prone to being attacked or stealing private data. The communication method also has high fault tolerance, andcan provide normal service even when unstable factors such as network congestion, flow limitation and node equipment damage occur.

Description

technical field [0001] The invention belongs to the technical field of robot communication, and specifically relates to a multi-path communication method based on secret sharing in a vehicle ad hoc network environment. Background technique [0002] In recent years, the penetration rate of vehicles has been greatly increased, resulting in the continuous increase of the number of vehicles on the road, road congestion, driving safety, environmental pollution and other related problems are becoming more and more serious, which greatly affects people's normal travel. Therefore, there is a need for a new technology to realize mutual communication between vehicles, so as to provide safety and convenience for modern road traffic. Due to various demands, a Vehicular Ad-hoc Network (VANET for short) emerges as the times require. VANET is an ad hoc multi-hop communication network composed of vehicle nodes, road infrastructure and servers, providing intelligent traffic information serv...

AI Technical Summary

Problems solved by technology

However, these schemes only transmit messages through one path, which cannot meet the real-time requirements, and the transmission process is still vulnerable to attacks and damages by opponents.

In addition, the system has a low fault tolerance rate and cannot effectively resist the occurrence of unstable factors such as network congestion and equipment failure.

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