Privacy protection scheme based on fair blind signature and hierarchical encryption for consortium blockchain

被引：0
|
作者：
Zhang X. [1 ,2 ]
Li Z. [1 ]
Lin J. [3 ]
机构：
[1] School of Software Engineering, Chongqing University of Posts and Telecommunications, Chongqing
[2] College of Microelectronic and Communication Engineering, Chongqing University, Chongqing
[3] Chongqing Key Laboratory of Photo Electronic Information Sensing and Transmitting Technology, Chongqing University of Posts and Telecommunications, Chongqing
来源：
Tongxin Xuebao/Journal on Communications | 2022年 / 43卷 / 08期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
consortium blockchain; fair blind signature; hierarchical encryption; homomorphic encryption; privacy protection; zero-knowledge proof;
D O I：
10.11959/j.issn.1000-436x.2022162
中图分类号：
学科分类号：
摘要：
To solve the security hazards of identity information and transaction data and the time-consuming problem of traditional single-level encryption methods in the current application scenarios of consortium blockchain, a privacy protection scheme of consortium blockchain based on fair blind signature and hierarchical encryption was proposed. Considering the strong centrality and poor security of the existing fair blind signature scheme, it was redesigned with zero-knowledge proof technology to be applicable for consortium blockchain application scenario. Based on the Paillier homomorphic encryption algorithm, a supervisable hierarchical encryption method was designed, and the method realized the supervision of encrypted transaction data information and reduced the time cost of the encryption and decryption process. The security analysis and simulation results show that the proposed scheme can effectively resist malicious attacks such as tampering and eavesdropping and significantly improve the encryption efficiency. © 2022 Editorial Board of Journal on Communications. All rights reserved.
引用
收藏
页码：131 / 141
页数：10
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