Abstract:

In view of the security problems in the process of mobile network payment, this study constructs a mobile network payment security communication protocol model based on the improved DNS protocol. The improved DNS protocol is adopted in the model. By introducing blockchain technology, each top-level domain name becomes an autonomous root, and then the autonomous root forms a root alliance, so as to participate in the publishing and management of each data node. Using this idea of decentralization, the security of mobile network payment is effectively improved. In particular, the PBFT consensus algorithm is improved by actively obtaining the views of all nodes in the node network and the latest block height and other information, so as to restore the backward execution of some nodes caused by the operation of the network, and further ensures the consistency and security of data.

Key words: DNS protocol, mobile network, blockchain, consensus mechanism, communication model, decentration, information safety, hospital payment