区块链综述:技术与挑战  

Overview of Blockchain:Technology and Challenges

作　　者：王锡亮 刘学枫 赵淦森[1] 王欣明[1] 周子衡 莫泽枫 WANG Xiliang1,LIU Xuefeng1,ZHAO Gansen1,WANG Xinming1 ,ZHOU Ziheng2,MO Zefeng3(1. School of Computer,South China Normal University,Guangzhou 510631,China;2. VeChain Foundation Limited,Singapore 018936;3. School of Mathmatical Science,South China Normal University,Guangzhou 510631,China)

机构地区：[1]华南师范大学计算机学院,广东广州510631 [2]唯链基金会,新加坡018936 [3]华南师范大学数学学院,广东广州510631

出　　处：《无线电通信技术》2018年第6期531-537,共7页Radio Communications Technology

基　　金：教育部高等学校博士学科点专项科研基金项目(20134407120017);广东省科技计划项目(2017KZ010101;2017B03038009);广州市科学研究计划项目(201804010314);Ve Chain Foundation(20180101)

摘　　要：区块链技术被广泛认为是一个可以在数字空间中构建信任的系统技术,其主要特征包括去中心化、多副本冗余、防数据纂改、分布式环境下的建立共识等。区块链的相关应用如比特币、智能合约等逐步在不同的领域被采纳和推广。区块链的核心构建技术和理论,包括有链式安全存储、共识算法、对等网络、智能合约等。从区块链的参考技术架构、区块链的核心理论和技术、区块链典型系统三个方面讨论了现有的区块链技术,希望为相关研究提供有益的指导和借鉴。The blockchain technology is widely considered as a key technology to build trust in digital space,and has such main features as decentralization,multiple-copy redundancy,data tamper prevention,consensus in distributed environments,etc. The related applications of blockchain,such as bitcoin and smart contracts,are gradually adopted and generalized in different fields. The core techniques and theories of blockchain include chained secure storage,consensus algorithms,peer-to-peer network,and smart contracts,and so on. This paper discusses the existing blockchain technologies,including reference technology architecture,key theories and techniques,and the typical blockchain systems,which can provide beneficial instruction and reference for relevant study.

关 键 词：区块链 共识算法 智能合约 MERKLE TREE 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]