Data security destruction method and system based on block chain, and electronic equipment

The invention discloses a block chain-based data secure destruction method and system and electronic equipment, and relates to the technical field of data processing. According to the block chain-based data security destruction method provided by the invention, the segmented data is encrypted to form the data set convenient for a data controller to process, and then part of the segmented encrypted data is selected from the data set for existence verification; and determining whether data corresponding to the selected encrypted data exists in the data storage system or not based on a verification result, if so, deleting the data, and generating a data key destruction instruction to destroy a key corresponding to the data in a key management system, so that thorough destruction of the data is realized, and a favorable guarantee is provided for data security. 本发明公开一种基于区块链的数据安全销毁方法、系统及电子设备，涉及数据处理技术领域。本发明提供的基于区块链的数据安全销毁方法，通过对分割后的数据进行加密以形成便于数据控制者处理的数据集，然后从数据集中选择部分分割后的加密数据进行存在性验证，并基于验证结果确定数据存储系统是否存在与选择的加密数据相对应的数据，如果