基于区块链的数字内容服务与安全监管技术研究与实现

doi:10.3969/j.issn.1671-1122.2020.10.007

摘要/Abstract

摘要：

随着当前数字经济的发展,数据共享和保护成为推动经济发展的必然选择。然而数据在共享过程中容易出现数据篡改、数据盗用、监管难度大等问题。文章提出基于区块链的数字内容共享和安全监管方案。区块链具有防篡改、可追溯、去中心化的特点,能够有效解决数据篡改和盗用问题。为了解决数字内容分享系统中的监管问题,文章提出了内容链和监管链的双链模型,增加了数据管理的灵活性和安全性,其中监管链对系统中的交易进行全程监督,从而构建责任可追责系统。IPFS提供了一个弱冗余、高性能的存储方式。该方案采用IPFS作为数字内容存储模块,将IPFS与区块链技术相结合从而保证数字内容的安全存储和访问控制。最后,实验分析和评估表明该方案是可行的。

关键词: 数据共享, 区块链, IPFS, 监管机制

Abstract:

With the development of the current digital economy, data sharing and protection are inevitable choices to promote the development of the economy. However, data tampering, data misappropriation, difficult supervision and other problems are easy to occur in the process of data sharing. This paper proposes a blockchain-based digital content sharing and security supervision scheme. Blockchain has the characteristics of anti-tampering, traceability, and decentralization, which can effectively prevent data tampering and theft. In order to solve the problem of supervision in the digital content sharing system, this paper proposes a double-chain model of content chain and supervision chain, which increases the flexibility and security of data management. The supervision chain supervises the transactions in the system throughout the whole process, so as to build a responsible accountability system. IPFS provides a weakly redundant, high-performance storage method. The system uses IPFS as the digital content storage module, and the combination of IPFS and blockchain technology ensures the safe storage and access control of digital content. Finally, the experimental analysis and evaluation show that the scheme is feasible.

Key words: data sharing, blockchain, IPFS, supervision mechanism

中图分类号:

TP309

彭如月, 马兆丰, 罗守山. 基于区块链的数字内容服务与安全监管技术研究与实现[J]. 信息网络安全, 2020, 20(10): 49-56.

PENG Ruyue, MA Zhaofeng, LUO Shoushan. Research and Implementation of Digital Content Service and Security Supervision Technology Based on Blockchain[J]. Netinfo Security, 2020, 20(10): 49-56.

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参考文献 21

[1]	YANG Xinya, WANG Ying. Blockchain is the Critical Technology to Improve the Digital Content Industry Chain[J]. Library Tribune, 2019, (3):35-41.
	杨新涯, 王莹. 区块链是完善数字内容产业链的最关键技术[J]. 图书馆论坛, 2019,(3):35-41.
[2]	CHE Bing. How to Speed up Data Sharing in Digital Economy[N]. China Business News, 2020-6-30(A11).
	陈兵. 数字经济下如何加快数据共享[N]. 第一财经日报, 2020-6-30(A11).
[3]	NAKAMOT S. Bitcoin: A Peer-to-Peer Electronic Cash System[EB/OL]. , 2020-6-25.
[4]	Bitcoin Project Group. The Bitcoin Project: May 12, 2009[EB/OL]. , 2018-3-16.
[5]	Vitalik Buterin. The Ethereum Project: November 12, 2013[EB/OL]. , 2018-3-12.
[6]	The Linux Foundation. The Hyperledger Project: August 12, 2015[EB/OL]. , 2018-3-15.
[7]	DING Xiaowei, HE Qiuyan. On the Impact of Blockchain Technology on the Media Industry[J]. Modern Communication, 2019,41(12):9-13.
	丁晓蔚, 何秋妍. 论区块链技术对传媒业的影响[J]. 现代传播(中国传媒大学学报), 2019,41(12):9-13.
[8]	LIU Quan. Development Status, Problems and Suggestions of Blockchain Enterprises in China[N]. China Computer News,, 2020-6-8(8).
	刘权. 我国区块链企业发展现状、问题及建议[N]. 中国计算机报E,2020-6-8(8).
[9]	ZHUANG Haiyan. Research on Blockchain Investigation and Forensics - Take Bitcoin as an Example[J]. Zhongguo Xinxihua, 2018(7):97-100.
	庄海燕. 区块链调查取证研究——以比特币为例[J]. 中国信息化, 2018(7):97-100.
[10]	ZHANG Jianyi, WANG Zhiqiang, XU Zhili, et al. A Regulatable Digital Currency Model Based on Blockchain[J]. Journal of Computer Research and Development, 2018,55(10):2219-2232.
	张健毅, 王志强, 徐治理, 等. 基于区块链的可监管数字货币模型[J]. 计算机研究与发展, 2018,55(10):2219-2232.
[11]	HUANG Jianhua, HUANG Xueru, JI Yuxiang, et al. Sharding Consensus Protocol Based on Dual Blockchains[EB/OL]. http://www.arocmag.com/article/02-2021-02-007.html, 2020-6-25.
	黄建华, 黄雪茹, 季钰翔, 等. 一种基于双链模型的分区共识协议[EB/OL]. http://www.arocmag.com/article/02-2021-02-007.html, 2020-6-25.
[12]	ISLAM M A, MADRIA S. A Permissioned Blockchain Based Access Control System for IOT [C]//IEEE. 2019 IEEE International Conference on Blockchain (Blockchain), July 14-17, 2019, Atlanta, GA, USA. New York: IEEE, 2019: 469-476.
[13]	BENET J. IPFS-Content Addressed, Versioned, P2P File System[EB/OL]. https://arxiv.org/abs/1407.3561. 2014-7-14.
[14]	NYALETEY E, PARIZI R M, ZHANG Qi, et al. BlockIPFS-blockchain-enabled Interplanetary File System for Forensic and Trusted Data Traceability [C]//IEEE. 2019 IEEE International Conference on Blockchain (Blockchain), July 14-17, 2019, Atlanta, GA, USA. New York: IEEE, 2019, 18-25.
[15]	DONG Tianyi, DAI Jiale, HUANG Yuming. IPFS Principles and Practices[M]. Beijing: Machinery Industry Publishing, 2019.
	董天一, 戴佳乐, 黄禹铭. IPFS原理与实践[M]. 北京: 机械工业出版, 2019.
[16]	GU Jun, XU Xin. Design and Implementation of a Humanities and Social Sciences Data Sharing Model——A Case Study of Consortium Blockchain[J]. Journal of the China Society for Scientific and Technical Information, 2019,38(4):354-367.
	谷俊, 许鑫. 人文社科数据共享模型的设计与实现——以联盟链技术为例[J]. 情报学报, 2019,38(4):354-367.
[17]	ZHOU Ruyue. Blockchain Based Content Addressable Decentralized Content Delivery Architecture[D]. Shanghai: Shanghai Jiao Tong University, 2019.
	周如月. 基于区块链信用体系的内容分发架构[D]. 上海:上海交通大学, 2019.
[18]	TRUONG H T T, ALMEIDA M, KARAME G, et al. Towards Secure and Decentralized Sharing of IoT Data [C]//IEEE. 2019 IEEE International Conference on Blockchain (Blockchain), July 14-17, 2019, Atlanta, GA, USA. New York: IEEE, 2019, 176-183.
[19]	WANG Zuan, TIAN Youliang, ZHU Jianming. Data Sharing and Tracing Scheme Based on Blockchain [C]//IEEE. 2018 8th International Conference on Logistics, Informatics and Service Sciences(LISS), Auguest 3-6, 2018, Toronto, ON. New York: IEEE, 2018: 1-6.
[20]	QIU Yunxiang, ZHANG Hongxia, CAO Qi, et al. Blockchain Data Access Control Scheme Based on CP-ABE Algorithm[J]. Chinese Journal of Network and Information Security, 2020,6(3):88-98.
	邱云翔, 张红霞, 曹琪, 等. 基于CP-ABE算法的区块链数据访问控制方案[J]. 网络与信息安全学报, 2020,6(3):88-98.
[21]	HUANG Sui, CHEN Liwei, FAN Bingbing. Data Security Sharing Method Based on CP-ABE and Blockchain[J]. Computer Systems & Applications, 2019,28(11):79-86.
	黄穗, 陈丽炜, 范冰冰. 基于CP-ABE和区块链的数据安全共享方法[J]. 计算机系统应用, 2019,28(11):79-86.

参数	参数含义
DO	数字内容提供者
DR	数字内容消费者
CA	密钥分发中心
λ	属性加密算法的系统安全参数
MSK	系统主密钥
PSK	系统公开参数
M	数字内容元数据明文
CT	数字内容元数据加密后的密文
A_cp	文件对应的访问控制结构
A_dr	数字内容消费者属性集合
U_SK	用户根据属性生成的私钥

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