A Regulatable Blockchain Transaction Model with Privacy Protection

Blockchain is a decentralized distributed ledger technology. The public chain represented by Bitcoin and Ethereum only realizes the limited anonymity of user identity, and the transaction amount is open to the whole network, resulting in user privacy leakage. Based on the existing anonymous technolo...

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Main Authors: Zhiyuan Xue, Miao Wang, Qiuyue Zhang, Yunfeng Zhang, Peide Liu
Format: Article
Language:English
Published: Springer 2021-06-01
Series:International Journal of Computational Intelligence Systems
Subjects:
Online Access:https://www.atlantis-press.com/article/125957511/view
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author Zhiyuan Xue
Miao Wang
Qiuyue Zhang
Yunfeng Zhang
Peide Liu
author_facet Zhiyuan Xue
Miao Wang
Qiuyue Zhang
Yunfeng Zhang
Peide Liu
author_sort Zhiyuan Xue
collection DOAJ
description Blockchain is a decentralized distributed ledger technology. The public chain represented by Bitcoin and Ethereum only realizes the limited anonymity of user identity, and the transaction amount is open to the whole network, resulting in user privacy leakage. Based on the existing anonymous technology, the concealment of the sender, receiver, amount of the transaction, and does not disclose any information, which makes the supervision difficult. Therefore, the design of blockchain scheme with privacy protection and supervision functions is of great significance. In this paper, a blockchain transaction model with both privacy and supervision function is proposed. It uses probability encryption to realize the hiding of the true identity of the blockchain transaction, and uses the commitment scheme and zero-knowledge proof technology to realize the privacy protection and guarantee legitimacy verification of the transaction. With the use of encryption technology, the regulators can supervise blockchain transactions without storing the users' information, which greatly reduces the pressure on storage, computing and key management. In addition, it does not rely on specific consensus mechanism and can be used as an independent module. The security performance analysis shows that the proposed scheme has great practicability and has potential application in many fields.
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spelling doaj.art-f5ba542bdb3549e5af119ec1e98c128d2022-12-22T01:05:54ZengSpringerInternational Journal of Computational Intelligence Systems1875-68832021-06-0114110.2991/ijcis.d.210528.001A Regulatable Blockchain Transaction Model with Privacy ProtectionZhiyuan XueMiao WangQiuyue ZhangYunfeng ZhangPeide LiuBlockchain is a decentralized distributed ledger technology. The public chain represented by Bitcoin and Ethereum only realizes the limited anonymity of user identity, and the transaction amount is open to the whole network, resulting in user privacy leakage. Based on the existing anonymous technology, the concealment of the sender, receiver, amount of the transaction, and does not disclose any information, which makes the supervision difficult. Therefore, the design of blockchain scheme with privacy protection and supervision functions is of great significance. In this paper, a blockchain transaction model with both privacy and supervision function is proposed. It uses probability encryption to realize the hiding of the true identity of the blockchain transaction, and uses the commitment scheme and zero-knowledge proof technology to realize the privacy protection and guarantee legitimacy verification of the transaction. With the use of encryption technology, the regulators can supervise blockchain transactions without storing the users' information, which greatly reduces the pressure on storage, computing and key management. In addition, it does not rely on specific consensus mechanism and can be used as an independent module. The security performance analysis shows that the proposed scheme has great practicability and has potential application in many fields.https://www.atlantis-press.com/article/125957511/viewBlockchainPrivacy protectionSupervisionEncryption
spellingShingle Zhiyuan Xue
Miao Wang
Qiuyue Zhang
Yunfeng Zhang
Peide Liu
A Regulatable Blockchain Transaction Model with Privacy Protection
International Journal of Computational Intelligence Systems
Blockchain
Privacy protection
Supervision
Encryption
title A Regulatable Blockchain Transaction Model with Privacy Protection
title_full A Regulatable Blockchain Transaction Model with Privacy Protection
title_fullStr A Regulatable Blockchain Transaction Model with Privacy Protection
title_full_unstemmed A Regulatable Blockchain Transaction Model with Privacy Protection
title_short A Regulatable Blockchain Transaction Model with Privacy Protection
title_sort regulatable blockchain transaction model with privacy protection
topic Blockchain
Privacy protection
Supervision
Encryption
url https://www.atlantis-press.com/article/125957511/view
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