Research On Key Technologies Of Logistics Information Platform Based On Permissioned Blockchain

In recent years,with the rapid development of e-commerce in China,the business volume of logistics industry has ushered in an explosive growth.However,behind this growth,problems such as accident accountability and information traceability are becoming more and more serious.The centralized management mode of traditional logistics enterprises also increases the information barriers among the industry.At the same time,due to lack of data and credibility,the third-party logistics information platforms are scarcely possible to conduct accurate certification and management on logistics products.To slove the above problems,this paper designs a logistics information platform LIP-Chain based on the permissioned blockchain.Taking advantages of the original features of blockchain technology,such as decentralization,elimination of trust,tamper-proffing and data provenance,LIP-Chain redefines the way to exchange and store logistics data and fundamentally breaking through the bottleneck caused by centralized management issues.Different from the cryptocurrency application scenario of the traditional blockchain system,the logistics industry application scenario requires LIPChain to provide a second-level response speed and a system throughput of hundreds of transactions per second.At the same time,there are a large number of lightweight mobile nodes in the logistics industry application scenario,which puts forward the need to reduce overhead for the encryption and verification mechanism of the blockchain system.This paper discusses the key issues involved in the system design,and proposes reasonable improvement measures,to make sure that LIP-Chain meets the performance requirements of logistics industry scenarios on the premise of ensuring security.The contribution of this paper lies in:Based on the idea of permissioned blockchain,a logistics industry information platform architecture LIP-Chain is designed,and a prototype system is implemented.LIP-Chain uses the public key infrastructure to introduce identity management and access control in the outer layer of the blockchain system,thereby improving the internal trust of the system.In this condition,LIP-Chain simplifies its internal verification and security mechanisms to improve system performance and reduce costs.Simulation results show that this design can effectively improve system throughput and scalability.Replaced ECC algorithm with NTRU,an anti-quantum computing attack public key encryption algorithm,and applies NTRU to LIP-Chain.Simulation experiments show that this scheme can increase the system encryption and decryption time by 5-10 times and improve the security of LIPChain to quantum computing attack resistant level Also,an NTRU algorithm parameter set suitable for permissioned blockchain system is proposed.Based on the BFT-SMaRt protocol,a blockchain consensus mechanism suitable for the logistics information platform is designed.In this paper,the Byzantine fault-tolerant algorithm is used to replace the mining operations in the traditional blockchain system to reduce node overhead.The results of experiments show that our design can effectively improve system throughput to approximately 1000 transactions per second and make LIP-Chain to tolerate 33% Byzantine fault.Innovation of this paper lies in:1.Applying the permissioned blockchain architecture to the design of the logistics industry information platform,which solves the information barrier problem existing in the traditional design and break though the performance bottleneck of the traditional blockchain system.2.Introducing NTRU,an anti-quantum computing attack public key encryption algorithm,into the permissioned blockchain system.Comparing to ECC,a well-known public key encryption algorithm,not only NTRU can reduce the hardware overhead of blockchain nodes under the same security level,but also,the encryption and decryption calculation time is shorter.3.Introducing BFT-SMaRt,a state machine replication protocol,into the consensus mechanism design of the permissioned blockchain system,which can effectively reduce node overhead and improve the Byzantine fault tolerance level of the system.