Research And Implementation Of Trusted Authentication Algorithm Based On Blockchain

In the information era,data is an indispensable information carrier in human's digital life.The multi-modal data blowout in the network ecological environment with the development of Internet and Mobile Internet,which makes statistical analysis and customized processing of massive data increasingly important.Trusted data is the most valuable part of the various existing forms of data.How to obtain trusted data and how to perform trusted authentication on it is the focus of current academia and Industry.Based on the existing research,the data credible authentication research in this paper starts with the blockchain architecture,combines the single blockchain structure and the hybrid blockchain system framework,and starts from the three stages of data storage,processing and access.It emphasizes the predictability and controllability of entity behavior results.The main research contents of this paper are as follows:(1)In order to solve the problem of user behavior constraints in the data processing stage,this paper proposes a trusted authentication scheme based on a single blockchain structure.It implements a time-constrained reputation value management mechanism through smart contracts,feedback adjustments and constraints on transaction costs and entity behaviors,and at the same time implements a reward and punishment mechanism for role entities in the system to maintain the interests and rights of each role.In the context of digital copyright protection,the program realizes the registration,dissemination,use,and protection of copyright data,and better helps the development of the rights protection campaign and the implementation of accountability.In terms of experiments,the feasibility and performance of the scheme were verified from the aspects of system throughput and transaction delay by setting the parameters of transaction sending rate and transaction number.(2)In order to solve the sharing and privacy protection problems existing in the data storage and access phase,this paper proposes a trusted authentication scheme based on a hybrid blockchain architecture.It uses smart contracts to achieve on-chain sharing of data with different privacy levels and trusted authentication of on-chain data,combined with distributed storage technology to achieve data integrity storage and recovery.At the same time,it can better protect the privacy of users.In the scenario of cross-organization medical data sharing,this solution realizes the hierarchical storage,shared sharing and privacy protection of medical data.While providing users with high-quality and high-confidence services,we are committed to promoting the development of social medical health care.In terms of experiments,firstly,the impact of the number of nodes on the system performance was obtained through the changes in the experimental deployment environment.Secondly,by comparing with the operation results of the Hyperledger Caliper criterion,it was verified that the solution performed well and improved in terms of throughput and transaction delay.