A Private Data Protection Scheme Based on Blockchain under Pipeline Model

In order to solve the security problem that private data can be easily disclosed in the centralized storage mode of the Trusted Third Party (TTP), and to realize the dynamic trusted security storage of private data in distributed environment, we designed a distributed user private data protection scheme based on blockchain technology. In the scheme, secondary sharding algorithm is used to encrypt individual private data and the blockchain storage model under the designed channel system improves the sharding data storage scheme and solves the problems caused by the private data centralization storage. Through the theoretical analysis and experiment of the scheme, the designed scheme of this paper has high security, data synthesis efficiency and accuracy.