A new blockchain-based personal privacy protection scheme

Nowadays, personal privacy disclosure issues become increasingly prominent in the process of data publishing. Targeting at this issue, a secure blockchain-based personal privacy protection scheme is proposed. In this paper, firstly, the information is stored in cloud service, and its hash value is used for the index, which is encrypted and stored on the blockchain. Secondly, based on the principles of cryptography and the characters of blockchain technology, we propose our scheme and use it to provide an access control mechanism for personal privacy. It can make the personal privacy protection easier and more efficient. At last, through our analysis, this scheme can sufficiently protect personal privacy in using mobile devices and provide a safe and trustworthy information acquisition method for data mining. More importantly, this proposed scheme also can provide a reliable and unique source tracing for multimedia copyright protection in terms of multimedia security.