关键词: 区块链, 电子发票, 去中心化, 共享, 安全, 算法

Abstract: The largescale application of electronic invoices has promoted the development of economy and society, but there are also some problems, such as repeated reimbursement of electronic invoices and so on. The practical problems can be effectively solved by the application of block chain technology in electronic invoices, then the four characteristicsthat of sharing, of right confirmation, of authenticity, and of trust of electronic invoice data are provided. The application situation of the electronic invoice is introduced, the block chain technology is expounded, and the key technical problems of the application of the block chain in the electronic invoice are described. Finally, the electronic invoice system based on block chain is designed and researched.

Key words: block chain, electronic invoice, decentralization, sharing, security, algorithm