基于区块链的种质资源数据安全共享模型研究

目前,农业领域种质资源数据的共享管理工作大多采用中心化的数据共享模式,存在数据泄露、易篡改等问题。根据区块链技术具备的去中心化、安全可靠、防篡改的特点,本文提出一种基于区块链的种质资源数据安全共享系统,采用以太坊框架设计基于区块链的种质资源数据安全共享系统模型,针对用户身份数据和种质资源数据提出“IPFS+区块链”的链上链下协同存储模型,使用非对称加密技术确保种质资源数据安全性和用户身份数据隐私性,通过智能合约交互方式,给出协同存储模型设计结果,展示模型的合理性。

Research on Data Secure Sharing Model of the Germplasm Resources Based on Blockchain

At present, the data sharing and management of germplasm resources in the field of agriculture mostly adopts the centralized data sharing mode, which has the problems of data leakage, easy tampering and so on. In this paper, according to the characteristics of decentralization, safety, reliability, and tamper resistance of the blockchain technology, it is proposed a germplasm resources data security sharing system based on the blockchain technology with the Ethereum framework. In the secure blockchain-based germplasm resources data shared system model, we put forward an on-chain and off-chain collaborative storage model of the "IPFS+blockchain" for the user identity data and the germplasm resources data, and use an asymmetric encryption technology to ensure the germplasm resources data security and the user identity data privacy through the interaction of smart contracts. Then, the design results of the collaborative storage model are given, which is showed that this storage model is rational.