A survey of privacy protection in distributed systems based on blockchain

Abstract

In recent years, with the development of blockchain technology, the sharp increase in the amount of data and the improvement of user needs, various kinds of security problems occur frequently, and the application research on the privacy protection of blockchain in distributed systems is more and more extensive. This paper summarizes three types of distributed system privacy protection research methods based on blockchain, including privacy protection research based on lattice cryptography algorithm, privacy protection research based on homomorphic encryption algorithm and privacy protection research based on state secret algorithm.