A Regulatable Blockchain Transaction Model with Privacy Protection

Zhang, Xue; Miao, Wang; Zhang, Qiuyue; Zhang, Yunfeng; Лю, Пэйдэ

doi:10.2991/ijcis.d.210528.001

Cited by 9 publications

(5 citation statements)

References 31 publications

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“…According to the scope of users or the decentralization degree of the blockchain, we generally divide the blockchain into three categories: public chain, private chain, and alliance chain [29]. Public chain refers to each node on the network can freely join and exit the network, the familiar Bitcoin and Ethereum are both public chains [30]; private chain means that the write permissions of each node are controlled by the internal node, it mainly provides data sharing, credit guarantee mechanism, and technical services for enterprises and teams at the microlevel, and it is generally believed that the digital currencies issued by the central banks belong to the category of private chain [31]; alliance chain refers to the alliance of relevant institutions with common interests, and the alliance will jointly maintain the operation and maintenance of the blockchain [32]. The essential difference between the three types of blockchain lies in the different degree of decentralization.…”

Section: The Current State Of Blockchainmentioning

confidence: 99%

Research on Convergence Media Consensus Mechanism Based on Blockchain

Wang

2022

Sustainability

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In recent years, the media industry has achieved rapid development and experienced three development stages from traditional media to new media and then to the current convergence media. Convergence media has brought about great changes in content production, communication mechanism, operation and maintenance management, but also brought about problems such as declining credibility of the industry, difficulty in confirming content rights, difficulty in protecting user privacy, etc. Research on convergence media based on blockchain can make use of the characteristics of blockchain to design or optimize the media industry. In this paper, we introduced the development of convergence media, blockchain and consensus mechanism, then we described a sustainable convergence media ecology based on blockchain. Furthermore, we designed and implemented a consensus mechanism named proof of efficiency (PoE). After analysis, PoE can provide high security and resist 51% resource attack, sybil attack, etc. The experimental results show that PoE has the characteristics of decentralization, strong consistency, low energy consumption, short average block generation time, high throughput and short block confirmation time; the consensus results of PoE can reflect the node’s ecological characteristics in convergence media which can stimulate the activity of nodes and better solve the generation of the Matthew effect.

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Section: The Current State Of Blockchainmentioning

confidence: 99%

Research on Convergence Media Consensus Mechanism Based on Blockchain

Wang

2022

Sustainability

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“…The establishment of DC (data center) and layers of supervision realized strong regulation on the model. Xue et al [24] proposed a blockchain transaction model with both privacy and regulation functions. Probabilistic encryption is used to hide the true identity of blockchain transactions; commitment scheme and zero-knowledge proof technology are used to protect privacy.…”

Section: Related Workmentioning

confidence: 99%

RBSmix: A Regulatable Privacy-Preserving Method for Cryptocurrency

Xiao

Sun

Yang

et al. 2022

Wireless Communications and Mobile Computing

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Public chains represented by Bitcoin and Ethereum do not require users to use their real names, and transaction data are open to the whole network. Analysed based on this, researchers have achieved the deanonymization of blockchain transactions to a certain extent. Based on the existing blockchain transaction privacy protection scheme, the true link relationship between the transaction sender and receiver is hidden, which brings difficulties to regulation. In this paper, we propose a cryptocurrency mixing service RBSmix, which allows users to reestablish their financial privacy in Bitcoin and related cryptocurrencies. RBSmix, through blind signature to prevent attackers from linking input and output addresses, by the threshold secret sharing algorithm, encryption technology, and a regulation team, combined with the idea of voting, tracks the source of funds for illegal addresses. Experiments show that the scheme scales to large numbers of users and can provide users with better privacy protection.

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“…Regarding the issue of protecting transaction privacy in blockchain, there have been several relevant studies [9][10][11], mainly focusing on two approaches: direct privacy protection and indirect privacy protection. Indirect privacy protection methods employ indirect means to protect transaction privacy, mainly through techniques such as coin mixing [12], ring signature [13], and stealth address [14].…”

Section: Introductionmentioning

confidence: 99%

Privacy Protection Method for Blockchain Transactions Based on the Stealth Address and the Note Mechanism

Wei,

Fang,

Hong

et al. 2024

Applied Sciences

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Blockchain is a distributed ledger technology that possesses characteristics such as decentralization, tamper resistance, and programmability. However, while blockchain ensures transaction openness and transparency, transaction privacy is also at risk of being exposed. Therefore, this paper proposes the blockchain transaction privacy protection method based on the stealth address and the note mechanism to address the privacy leakage risk in blockchain public environments. Firstly, the proposed method generates a random seed known only to the parties involved based on the Diffie–Hellman key exchange protocol, ensuring the privacy of transactions. Then, it utilizes the Note Commitments table to maintain the binding relationship between the stealth address and the corresponding note, enabling efficient transfer and verification of note ownership. The uniqueness of the stealth address is utilized as an invalidation identifier for notes in the Nullifier table, ensuring efficient verification of the correctness of note invalidation identifiers. Additionally, this method employs Pedersen commitment and Bulletproofs range proof to generate proof of the legality of transaction amounts, enabling the concealment of transaction amounts and facilitating private transactions between the parties involved. Finally, this paper presents a detailed performance analysis, implementation, and testing of the method. From the results, it can be concluded that the method proposed can effectively prevent fraudulent behavior by various transaction participants and ensure the security, privacy, and integrity of the transaction. Critical processes consume only milliseconds, and the related commitments and proofs are also minimal, which is crucial for controlling transaction costs. At the same time, this method achieves a completely decentralized privacy transaction solution.

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A Regulatable Blockchain Transaction Model with Privacy Protection

Cited by 9 publications

References 31 publications

Research on Convergence Media Consensus Mechanism Based on Blockchain

Research on Convergence Media Consensus Mechanism Based on Blockchain

RBSmix: A Regulatable Privacy-Preserving Method for Cryptocurrency

Privacy Protection Method for Blockchain Transactions Based on the Stealth Address and the Note Mechanism

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