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浙江大学学报(工学版)
JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)  2018, Vol. 52 Issue (11): 2150-2158    DOI: 10.3785/j.issn.1008-973X.2018.11.014
Computer Technology     
Data capitalization method based on blockchain smart contract for Internet of Things
SHENG Nian-zu1,2, LI Fang1, LI Xiao-feng1,2, ZHAO He1, ZHOU Tong1,2
1. Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China;
2. University of Science and Technology of China, Hefei 230026, China
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Abstract  

The Internet of Things data capitalization method based on blockchain smart contract was used as a solution to the challenges when ascertaining data ownership, dealing with the inefficiency of quantification and value transfer of digital asset. The data's right was determined by transferring data ownership and control from the equipment manufacturers to the users, with the aid of digital fingerprints stored in the blockchain. The data reliability was ensured by storing the up-to-date device status and hash of the data into the blockchain, which was achieved by the full lifecycle management and digital signatures. A data trading platform without any third-party was established based on smart contract to guarantee the security of data sharing and accomplish the realization and migration of data's value. The quantitative analysis of attack probability and attack success rate shows that the technology of blockchain smart contract provides data tamper resistance and eliminates the trust crisis in data transaction processes. The proposed method realizes the capitalization of data in the Internet of Things initially and may help promote the data value migration and data sharing in the Internet of Things in future.

Received: 26 January 2018      Published: 22 November 2018
CLC:  TP311  
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Cite this article:

SHENG Nian-zu, LI Fang, LI Xiao-feng, ZHAO He, ZHOU Tong. Data capitalization method based on blockchain smart contract for Internet of Things. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2018, 52(11): 2150-2158.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2018.11.014     OR     http://www.zjujournals.com/eng/Y2018/V52/I11/2150


基于区块链智能合约的物联网数据资产化方法

使用基于区块链智能合约的物联网数据资产化方法解决物联网系统中个人数据难以确权、数据资产的量化跟踪和价值转移无法高效完成等问题.借助区块链数字指纹将数据所有权和控制权从设备生产商转移至用户，为个人数据确权；通过全生命周期管理和数字签名等技术，将设备状态和数据哈希值存储至区块链，保证数据的可靠性；使用智能合约构建去第三方数据交易平台，保证数据共享的安全性，便捷地完成数据变现和数据价值转移.攻击可能性和攻击成功概率的量化分析结果表明，区块链智能合约技术可以为数据提供防篡改性，消除数据交易过程中的信任问题.借助区块链智能合约技术能够初步实现物联网数据的资产化，促进物联网设备的数据价值转移和共享.

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