价值驱动的数据可信共享关键技术研究

数据资产化与价值流通面临诸多挑战，数据资产难确权、难追溯，数据应用易失控以及数据价值流通成本高是导致挑战的重要原因。本项目研究价值驱动的数据可信共享平台，通过构建私有数据中心作为载体承载资产化的数据，支持应用跟着数据走的计算范式；通过去中心化的数据注册登记与索引技术，解决数据资产确权中的难题，如数据交换过程难追溯、使用过程难管控等；通过融合区块链技术与多方安全计算技术构建数据的可信互联，支撑数据流与价值流融合，以及数据在安全隐私环境中的高效应用，从而系统地解决数据流通的过程中面临的数据确权、隐私安全、激励机制问题。项目研究工作不仅对相关理论研究有重要意义而且为大数据应用提供了关键技术支撑。

Data capitalization and value exchanging still suffers from several challenges. There are difficulties in affirming the right of data sovereign, tracing the usage of data and reducing the cost of data exchanging. This project aims to construct a value-driven trusted data sharing platform. It employs the private data center to hold capitalized data and to enable the computational pattern where applications are directed to data. Via the decentralized data registration and indexing technology, the project deals with the issues of data usage tracing and control in the affirmation of data sovereign. Based on the blockchain and secure multi-party computation technology, it proposes the trusted connection mechanism to integrate the data exchanging and the value exchanging and to enable efficient data applications in a secure and privacy-preserving environment. In this way, this project systematically deals with the challenges we meet during the data exchanging, the affirmation of data sovereign, the privacy preserving and the incentive mechanism. Our work provides not only the novel methods to the theoretical research but also the key technologies to the big data industry.