Computer Science

Computer Science ›› 2021, Vol. 48 ›› Issue (11A): 500-508.doi: 10.11896/jsjkx.201200163

• Information Security • Previous Articles     Next Articles

Overview of Blockchain Technology

DAI Chuang-chuang1,2, LUAN Hai-jing1,2, YANG Xue-ying1,2, GUO Xiao-bing3, LU Zhong-hua1,2, NIU Bei-fang1,2   

  1. 1 Computer Network Information Center,Chinese Academy of Sciences,Beijing 100190,China
    2 University of Chinese Academy of Sciences,Beijing 100049,China
    3 The Lenovo Research,Beijing 100085,China
  • Online:2021-11-10 Published:2021-11-12
  • About author:DAI Chuang-chuang,born in 1993,Ph.D.His main research interests include algorithms and software in high-performance and blockchain.
    NIU Bei-fang,born in 1978,Ph.D,professor.His main research interests include the research of high-performance computing technology for biological and medical bigdata,specifically involving cancer genomics and macrogenomics, especially the “precision medicine” data processing technology based on the next generation.
  • Supported by:
    Strategic Priority Research Program of the Chinese Academy of Sciences(XDC01040100) and Science and Technology Major Project of Guangxi(Guike AA18118054).

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Abstract: With the increasing popularity and development of virtual digital currencies such as bitcoin,blockchain technology has been widely concerned by researchers.Blockchain technology is a distributed data ledger which combines blocks in a chain structure according to the time sequence.It has the characteristics of decentralization,programmability,and traceability.It has been widely studied in the financial field.Facing the development of blockchain technology,this paper introduces the origin and overview of blockchain technology,discusses in detail the crucial technologies of blockchain,consisting of ring signature,zero know-ledge proof,digital signature and homomorphic encryption,and summarizes the characteristics and types of blockchain technology.This paper summarizes the application field of blockchain technology,focuses on its application principles and relevant cases in the application field,analyzes the current development status of blockchain application,and analyzes and forecasts the development direction of blockchain technology in the future.

Key words: Bitcoin, Blockchain, Consensus mechanism, Decentralization, Digital signature, Ring signature, Smart contract, Zero knowledge proof

CLC Number: 

  • TP399
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