Data security sharing method, system and device

Abstract

The embodiment of the invention provides a data security sharing method, system and device, and the method comprises the steps: obtaining a data sharing request transmitted by a data request node based on a multi-party data security sharing architecture which is constructed by a license chain node and an equipment node; according to the data sharing request, carrying out multi-party data retrievalon a plurality of data providing nodes through a permission chain to obtain a local data model of target shared data, and obtaining the local data model through target shared data training based on federated learning and a preset learning instruction; and sending the local data model to a corresponding data request node. According to the embodiment of the invention, a decentralized trusted transaction environment is established, so that the transaction process is transparent to two transaction parties; and through a federated learning technology, the original data does not need to be transmitted in a data sharing process, so that the protection degree of user data privacy is increased from the source.

Description

technical field [0001] The present invention relates to the technical field of data sharing, in particular to a data security sharing method, system and device. Background technique [0002] With the development of the Internet of Things and big data, more and more raw data are pouring into the network. According to the forecast of the "Global Internet Trends Report 2019", the amount of newly added data will approach 200ZB in 2025. If you only focus on the data of each subject without data sharing, data islands will be formed, which will not only fail to realize data reuse and reduce data collection costs, but also limit the scope of data use and prevent data from creating greater benefits . Therefore, the demand for data sharing is also increasing. [0003] There are many deficiencies in the traditional data sharing mechanism. First of all, the centralized structure is vulnerable to single-point attacks, and the security of user data cannot be guaranteed; secondly, the ...

AI Technical Summary

Problems solved by technology

However, for the privacy protection of data information, the existing blockchain technology still has certain defects. When data information is shared, it will still lead to data privacy leakage.

Images