Abstract

The high-speed railway operating environment monitoring data is a direct reflection of the surrounding environment status of the railway. The safety of the monitoring data directly affects the safe and reliable transportation of the train. Based on the use of WSN in railways, this paper solves the problem of unauthentic between sensor nodes by utilizing the characteristics of decentralization, non-tampering and privacy protection of Blockchain, and proposes high-speed railway environmental monitoring data based on Consortium Blockchain, Identity authentication scheme. Using the Merkle root principle in the Blockchain data block structure, the identity information of the sensor-aware node is iteratively hashed to form the Merkle root of the identity information, and the data block is written and chained to ensure that the sensor identity information cannot be falsified and forged. The identity authentication of the sensor sensing node by the collecting base station is implemented.

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