Research On Security Management And Control System Of Voucher Based On Blockchain Technology

With the rapid development of science and technology,the form of voucher has evolved from paper voucher to electronic voucher.Electronic voucher is more convenient and manageable than paper voucher.The traditional electronic voucher management and control system has disadvantages such as easy falsification of voucher information,unreliable data storage process,and cumbersome settlement process.Blockchain technology can solve credit problems in a decentralized and de-trust situations.Therefore,the study of the security management and control system for tokens based on blockchain technology proposed in this paper can not only be applied to the management system of tokens,but also provides design ideas for other applications based on blockchain technology and has research value.This paper firstly introduces the background and significance of the topic,and analyzes the drawbacks of traditional electronic voucher management and control system and the research status of blockchain technology,and proposes a voucher security management and control system based on blockchain technology.Through the in-depth study of related technologies of the subject,the specific design schemes of system design goals,overall architecture design,functional design,peer-to-peer network,encryption technology,consensus mechanism,data information storage process and data structure of the voucher management and control system are proposed.In this paper,a blockchain consensus algorithm based on Raft algorithm is proposed.The verification process is added to the Raft algorithm and the leader mechanism is improved.The experiment is designed to verify the algorithm.The experimental results show that the algorithm can be applied to the voucher management system proposed in this paper.The main goal of this paper is to build a securable and reliable voucher management and control system.At the end of the thesis,the security effectiveness of the system is analyzed.The analysis result shows that the proposed voucher management system based on blockchain technology can resist most fraudulent behaviors and realize the safe storage and untampering of transaction data.