Data security processing method and device based on block chain

The invention is suitable for the technical field of block chains, and provides a data security processing method and device based on a block chain, and the method comprises the steps: obtaining a security value of a module in a specified system; and matching the module with a block chain in a block chain set according to the security value of the module, wherein the block chain is used for the matched module to perform data interaction based on private calculation. By the adoption of the method, the problem that in the using process of the system, data in the system cannot be published in a targeted mode, and information leakage is likely to be caused is solved. 本申请适用于区块链技术领域，提供了一种基于区块链的数据安全处理方法及装置，方法包括：获取指定系统中模块的安全值；根据所述模块的安全值将所述模块与区块链集合中的区块链匹配，所述区块链用于供匹配的所述模块进行基于私密计算的数据交互。通过采用该种方法，解决了系统在使用过程中，系统中的数据无法被针对性地公开，容易造成信息泄露的问题。