A Solution to Data Accessibility Across Heterogeneous Blockchains

Wu, Zheng; Xiao, Yang; Zhou, Enyuan; Pei, Qingqi; Wang, Quan

doi:10.1109/icpads51040.2020.00062

Cited by 11 publications

(6 citation statements)

References 5 publications

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“…Experimental results showed that the average cross-chain delay of this scheme was 0.375 s. However, because only a simulation experiment was performed in this paper, and no actual inter-chain environment was built, the experimental result only reflected the time of information transmission and it could not evaluate the time of connection establishment and inter-chain interactions in the virtual blockchain environment, so it was difficult to reflect the application effect of this method in the blockchain. Wu et al [ 12 ] proposed a cross-chain communication framework based on the cyclic committee rotation mechanism. Different blockchains were connected through committees for message-oriented verification to improve the cross-chain access speed.…”

Section: Discussionmentioning

confidence: 99%

“…However, this approach required abstraction for detailed scenarios, and the abstraction model obtained for different cross-chain scenarios would have a large variability. Wu et al [ 12 ] designed a cross-chain communication framework based on a periodic committee rotation mechanism, which connected different blockchains through committees with message-oriented authentication to improve the speed of cross-chain access. The committee rotation mechanism improved the scalability of the blockchain but also introduced the complexity of the election of members, which took a large part of the entire cross-chain access process.…”

Section: Related Workmentioning

confidence: 99%

See 1 more Smart Citation

CCIO: A Cross-Chain Interoperability Approach for Consortium Blockchains Based on Oracle

Pei

Ren

et al. 2023

Sensors

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Cross-chain interoperability can expand the ability of data interaction and value circulation between different blockchains, especially the value interaction and information sharing between industry consortium blockchains. However, some current public blockchain cross-chain technologies or data migration schemes between consortium blockchains need help to meet the consortium blockchain requirements for efficient two-way data interaction. The critical issue to solve in cross-chain technology is improving the efficiency of cross-chain exchange while ensuring the security of data transmission outside the consortium blockchain. In this article, we design a cross-chain architecture based on blockchain oracle technology. Then, we propose a bidirectional information cross-chain interaction approach (CCIO) based on the former architecture, we novelly improve three traditional blockchain oracle patterns, and we combine a mixture of symmetric and asymmetric keys to encrypt private information to ensure cross-chain data security. The experimental results demonstrate that the proposed CCIO approach can achieve efficient and secure two-way cross-chain data interactions and better meet the application needs of large-scale consortium blockchains.

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Section: Discussionmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

CCIO: A Cross-Chain Interoperability Approach for Consortium Blockchains Based on Oracle

Pei

Ren

et al. 2023

Sensors

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“…Wu et al. [26] proposed a framework for heterogenous blockchain communication based on a periodical committee rotation scheme. The proposed system works as a relay chain with relay‐chain nodes periodically replaced.…”

Section: State Of the Artmentioning

confidence: 99%

“…This has made blockchains like walled gardens [24], without the ability of information to be easily exchanged between two different blockchains [25]. The development of distinct and incompatible blockchains [26] has created significant division in research, and this has led to many blockchains which are isolated from each other. As the adoption of blockchain increases in various fields, interoperability between the different blockchain architectures being proposed is a major topic for discussion [27].…”

Section: Introductionmentioning

confidence: 99%

Blockchain interoperability: the state of heterogenous blockchain‐to‐blockchain communication

et al. 2023

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Blockchain technology has been increasingly adopted over the past few years since the introduction of Bitcoin, with several blockchain architectures and solutions being proposed. Most proposed solutions have been developed in isolation, without a standard protocol or cryptographic structure to work with. This has led to the problem of interoperability, where solutions running on different blockchain platforms are unable to communicate, limiting the scope of use. With blockchains being adopted in a variety of fields such as the Internet of Things, it is expected that the problem of interoperability if not addressed quickly, will stifle technology advancement. This paper presents the current state of interoperability solutions proposed for heterogenous blockchain systems. A look is taken at interoperability solutions, not only for cryptocurrencies, but also for general data‐based use cases. Current open issues in heterogenous blockchain interoperability are presented. Additionally, some possible research directions are presented to enhance and to extend the existing blockchain interoperability solutions. It was discovered that though there are a number of proposed solutions in literature, few have seen real‐world implementation. The lack of blockchain‐specific standards has slowed the progress of interoperability. It was also realized that most of the proposed solutions are developed targeting cryptocurrency‐based applications.

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“…Cross-chain protocols based on notary mechanisms are in conflict with the decentralized characteristics of blockchain technology. Therefore, this category of cross-chain protocols mainly focuses on optimizing and improving cross-chain technology based on notary mechanisms [30][31][32][33], reducing reliance on individual nodes or individual blockchains, and making the entire interaction network more secure and efficient. For example, literature [30] collects data and converts it into a unified data format through a committee composed of multiple notary nodes, achieving information exchange between different blockchains; literature [33] is responsible for locking and redeeming assets through a third-party insurance library.…”

Section: Related Workmentioning

confidence: 99%

Three-Stage Cross-Chain Protocol Based on Notary Group

Chen

Yao

et al. 2023

Electronics

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With the continuous development of blockchain technology and economy, blockchain applications have been well developed in multiple key areas. The demand for interoperability between different blockchains is also increasing. Cross-chain protocol has become a major approach to solve cross-chain problems by defining a series of cross-chain processes and standards. In response to the problems of long transaction time, high transaction costs, and high degree of centralization in most cross-chain protocols, this paper proposes a three-stage cross-chain protocol based on transaction notary groups and verification notary groups. Without increasing transaction costs and transaction time, the centralization problem of notary mechanism cross-chain technology is solved, realizing secure and fast interaction between different blockchains. Experimental results show that as long as malicious nodes in the notary group do not exceed one-third, the three-stage cross-chain protocol can effectively ensure the security of cross-chain transactions and solve the centralization problem.

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A Solution to Data Accessibility Across Heterogeneous Blockchains

Cited by 11 publications

References 5 publications

CCIO: A Cross-Chain Interoperability Approach for Consortium Blockchains Based on Oracle

CCIO: A Cross-Chain Interoperability Approach for Consortium Blockchains Based on Oracle

Blockchain interoperability: the state of heterogenous blockchain‐to‐blockchain communication

Three-Stage Cross-Chain Protocol Based on Notary Group

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