Secure Data Access and Consensus Algorithm based on Consortium Blockchain in LVC

Aiming at realize the safety, reliable and efficient of LVC(Live, Virtual and Constructive) distributed simulation system. Wireless Sensor Networks (WSN) are widely depolyed in the LVC cross-domain nodes and sub-networks, by using blockchain technology with the advantages of distributed multi-center, collective maintenance and not easy to tamper. In the existing smart LVC networks, sensing data of the LVC WSNs has to be uploaded to a central node for storage and sharing. This central network has many security problems, such as data tampering and single node failure. In order to resolving this problem, the Consortium Blockchain technology is exploited to form a Data sharing and Storage on Consortium Blockchain. In this secure data storage and sharing system, cross-domain networks has some pre-selected data collection based station, which runs the smart contracts on the behalf of its domain nodes. The constraints about data sharing are set by the data owners, and smart contracts replaces the legal terms and laws to regulate the data visitors. Security and analysis show that this LVC blockchain system can achieve safe and effective data storage and sharing in cross-domain scenario.