A survey of the fusion of traditional data security technology and blockchain

Blockchain is a new distributed infrastructure and computing paradigm, which has been widely used in various fields. For example, utilizing a chain data structure to verify and restore data, using a distributed node consensus algorithm to generate and update data, applying cryptography to ensure safe data transmission, and employing intelligent contracts composed of automated script code to manipulate data. Data, seen as an essential production factor, promotes the rapid development of blockchain. However, opportunities and challenges coexist, and data security on the blockchain is one of the key points that need attention. This paper introduces data security and the technical framework for deblocking, focusing on the techniques of zero knowledge proof, K-Anonymity, secure multi-party computing, ring signature, homomorphic encryption, trusted execution environment, and the association of these data security protection technologies with blockchain, and compares several data security protection technologies. In this survey, the focus of blockchain data security is structured by first mentioning the source of the data, then combining the characteristics of integration and non-tampering to the blockchain to solve the problems of traditional data security, and lastly, using data security technology to solve the blockchain data security on the Internet to achieve the ecological security of the blockchain.