基于区块链的网络协同设计资源共享追溯方法

Blockchain-Based Network Collaborative Design Resource Sharing and Tracing Method

摘要: 集团型企业内部在开展网络化协同研发设计过程中，高价值资源共享使用所产生的数字痕迹存在易被篡改、易泄露、信息真实度存疑等安全问题，导致资源供需双方共识度低、可信度差，严重影响资源共享意愿和共享效果。为此，本文提出了一种基于区块链的集团企业研发设计资源共享追溯方法及解决方案，利用区块链中的联盟链模型、加密算法、分布式账本、共识机制等，实现集团企业在网络化协同研发设计过程中资源共享、数字痕迹安全保密、防篡改、去中心化存储等目的；提出基于数字痕迹的共享链路模型，支持历史痕迹多维度追溯查询。同时针对Hyperledger Fabric框架内部存储与查询方式存在查询效率随着数据量变多而明显下降这一问题，提出了基于多维度的索引表数据切分策略，通过数据切分阈值与索引表，显著提升追溯查询效率与查询速度。通过原型系统的搭建及实验验证，本文所提方案能够支撑网络化协同设计中资源共享行为数字痕迹可靠存储和高效率追溯查询。

Abstract: In the process of networked collaborative R & D and design within group enterprises, the digital traces generated by the shared use of high-value resources have security problems such as easy tampering, easy leakage, and doubts about the authenticity of information, resulting in low consensus and credibility between the resource supply and demand parties, poor degree, seriously affecting the willingness and sharing effect of resource sharing. To this end, this article proposes a blockchain-based method and solution for group enterprise R & D and design resource sharing and traceability, using the alliance chain model, encryption algorithm, distributed ledger, consensus mechanism, etc. in the blockchain to realize group enterprise in the process of networked collaborative R & D and design, resource sharing, digital trace security, anti-tampering, decentralized storage, etc.; proposes a shared link model based on digital traces to support multi-dimensional traceability query of historical traces. At the same time, in view of the problem that the query efficiency of the internal storage and query mode of the Hyperledger Fabric framework decreases significantly as the amount of data increases, a multi-dimensional index table data segmentation strategy is proposed, and the data segmentation threshold and index table are used to significantly improve traceability, query efficiency and query speed. Through the construction of the prototype system and experimental verification, the solution proposed in this paper can support the reliable storage of digital traces of resource sharing behaviors and high-efficiency traceability query in networked collaborative design.