Abstract
Blockchain technology is an important innovation of fintech area. It mainly consists of distributed data storage, P2P propagation, consensus mechanism and encryption algorithm. From the cryptocurrency to IoT (Internet of things), the blockchain technology has been applied to many areas. However, it faces some challenges, especially for personal privacy preservation. Though there exist some studies on the privacy issue of blockchain, it still lacks a systematic review of the privacy preserving techniques for blockchain technology. This paper focuses on some methods to protect personal private data in blockchain and newly developing areas combined with blockchain. Further, we discuss the limitation of existing techniques and future development direction.
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Acknowledgments
This work is funded by the National Key Research and Development Plan (Grant No. 2018YFB0803504) and the National Natural Science Foundation of China (No. U1636215).
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Cui, Y., Pan, B., Sun, Y. (2019). A Survey of Privacy-Preserving Techniques for Blockchain. In: Sun, X., Pan, Z., Bertino, E. (eds) Artificial Intelligence and Security. ICAIS 2019. Lecture Notes in Computer Science(), vol 11635. Springer, Cham. https://doi.org/10.1007/978-3-030-24268-8_21
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