基于区块链与函数加密的隐私数据安全共享模型研究

doi:10.11959/j.issn.2096-0271.2022072

大数据 ›› 2022, Vol. 8 ›› Issue (5): 33-44.doi: 10.11959/j.issn.2096-0271.2022072

• 专题：数据流通与隐私计算 • 上一篇下一篇

基于区块链与函数加密的隐私数据安全共享模型研究

李懿¹^,²^,³, 王劲松¹^,²^,³, 张洪玮¹^,²^,³

¹ 天津理工大学计算机科学与工程学院，天津 300384
² 智能计算机及软件新技术天津市重点实验室，天津 300384
³ 计算机病毒防治技术国家工程实验室，天津 300457

出版日期:2022-09-15 发布日期:2022-09-01
作者简介:李懿（1997- ），男，天津理工大学计算机科学与工程学院博士生，主要研究方向为区块链安全及应用、联邦学习
王劲松（1970- ），男，博士，天津理工大学计算机科学与工程学院教授，中国计算机学会（CCF）理事，计算机病毒防治技术国家工程实验室副主任，主要研究方向为网络安全、数据智能、区块链等
张洪玮（1990- ），男，博士，天津理工大学计算机科学与工程学院讲师，CCF区块链专业委员会执行委员，主要研究方向为区块链、数据安全、隐私保护
基金资助:
天津市研究生科研创新项目(2020YJSS067);天津新一代人工智能重大专项(19ZXZNGX00080)

Research on privacy data security sharing scheme based on blockchain and function encryption

Yi LI¹^,²^,³, Jinsong WANG¹^,²^,³, Hongwei ZHANG¹^,²^,³

¹ School of Computer Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
² Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology, Tianjin 300384, China
³ National Engineering Laboratory for Computer Virus Prevention and Control Technology, Tianjin 300457, China

Online:2022-09-15 Published:2022-09-01
Supported by:
Tianjin Graduate Science and Technology Innovation Project(2020YJSS067);The New Generation Artificial Intelligence Technology Major Project of Tianjin(19ZXZNGX00080)

摘要/Abstract

摘要：

区块链技术给数据共享中的数据确权、数据溯源、数据可信、数据可用等方面提供了新思路，但数据共享中的隐私数据安全仍面临许多挑战。首先回顾当前基于区块链的数据共享研究现状；然后提出一种隐私数据安全共享模型，通过函数加密技术对隐私数据进行加密，结合零知识证明技术生成相关计算的可信证明，实现“数据可用不可见”的安全可靠的数据共享。实验结果显示，该模型的共享时延及经济开销均在可接受范围内，证明了该模型的安全性和可行性。

关键词: 区块链, 函数加密, 零知识证明, 数据共享, 隐私保护

Abstract:

Blockchain technology has provided new ideas for data validation, data traceability, data trustworthiness, and data availability in data sharing, but privacy data security in data sharing still faces many challenges.Firstly, the current status of blockchain-based data sharing research was reviewed.Then a secure sharing model of privacy data was proposed.By encrypting the privacy data through function cryptography, and generating the proof of computational correctness through zero-knowledge proof technology, a secure and reliable data sharing with “data available but not visible” was realized.The experimental results show that the sharing delay and economic overhead of the model are within the acceptable range, which demonstrates the security and feasibility of the model.

Key words: blockchain, functional encryption, zero knowledge proof, data sharing, privacy protection

中图分类号:

TP309.2

李懿, 王劲松, 张洪玮. 基于区块链与函数加密的隐私数据安全共享模型研究[J]. 大数据, 2022, 8(5): 33-44.

Yi LI, Jinsong WANG, Hongwei ZHANG. Research on privacy data security sharing scheme based on blockchain and function encryption[J]. Big Data Research, 2022, 8(5): 33-44.

图/表 4

参考文献 21

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名称	Gas	时间/s
Market(Deployed)	2 031 046	0.42
SetFnAndPrice	40 091	0.01
ChooseCt	49 210	0.01
UploadFn(para_size=3.8 KB)	930 930	0.22
VerifyZk	1 014 800	0.28

基于区块链与函数加密的隐私数据安全共享模型研究

Research on privacy data security sharing scheme based on blockchain and function encryption

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