A Decentralized Cross-Chain Service Protocol based on Notary Schemes and Hash-Locking

Sun, Yangyang; Yi, Longyang; Duan, Li; Wang, Wei

doi:10.1109/scc55611.2022.00033

Cited by 20 publications

(8 citation statements)

References 15 publications

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“…Hash-locking technology [44] is often used in conjunction with micro-payment channel technology (stateful channels), such as the Lightning Network, to collect cryptographic signature information by transferring transactions on the blockchain and interacting with participants in the corresponding payment channel. When the payment channel is closed, the final state will be on the chain, while the intermediate state will not be published in the chain of transactions between the two parties, and the problem of chain disputes may arise when it is closed [45].…”

Section: ) Hash-locking Technology Limitationsmentioning

confidence: 99%

“…The centralized notary method [44], which is also known as the single-signature notary, selects only one third-party node as the third-party notary, which is usually a designated organization, and the user sends the funds and information to the third-party notary, who realizes the cross-chain operation between A and B. This method is limited by the third-party centralized node, which ignores the decentralized nature of blockchain and affects the overall security of the blockchain system.…”

Section: ) Centralized Notarymentioning

confidence: 99%

“…Firstly, the scheme needs to ensure the security and trustworthiness of the notary nodes to avoid the "evil" of the notary, and secondly, the security of both chains A and B is checked, i.e., the latest information of the block issuer collection provided by the public chain system and the member node information provided by the consortium chain system are checked [44]. Before the cross-chain contract goes online, the notary access license similar to the consortium chain is implemented, and the centralized notary approach is avoided as much as possible to ensure the decentralized nature of cross-chain transactions.…”

Section: ) Security Requirements Of Notary Authentication Mechanismmentioning

confidence: 99%

“…Users need to have enough trust in the notary scheme to use it, and there are risks of fund and information leakage. There are significant centralization risks in using centralized notary scheme, similar to using a third-party exchange [44]. The multi-signature notary scheme needs to be supported on the target chain, and there are technical barriers for some blockchains.…”

Section: ) Notary Scheme Limitationsmentioning

confidence: 99%

See 3 more Smart Citations

A Survey on Cross-Chain Technology: Challenges, Development, and Prospect

et al. 2023

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With the continuous development of blockchain technology, many blockchain applications, such as digital currencies in the form of tokens, are deployed. However, due to the lack of data and value inter-blockchain transmission methods, these chain applications form many data islands. Therefore, crosschain technology is proposed and applied in distributed transaction platforms, digital finance, e-government and many other different fields. Although cross-chain technology just started, the cross-chain technology and its applications are gradually improving to meet the development needs of blockchain system. At the same time, they have already realized asset transfers across heterogeneous blockchains and platforms, and some projects have realized cross-chain information exchange. At present, cross-chain technology includes the following typical methods: Hash-locking, Notary scheme, Distributed private key control, Sidechains/Relays and Tight coupling. This paper analyzes the above methods from the aspect of techniques, security requirements, and technical limitation, and compares their applicability. With public blockchains and consortium blockchains, this paper analyzes their problems and challenges in cross-chain technology and introduces the main approaches of existing solutions. By analyzing the existing cross-chain technologies and problems, this paper further introduces eight popular cross-chain projects and their application prospects. Finally, this paper summarizes and proposes the future research topics and development trends of cross-chain technology.

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Section: ) Hash-locking Technology Limitationsmentioning

confidence: 99%

Section: ) Centralized Notarymentioning

confidence: 99%

Section: ) Security Requirements Of Notary Authentication Mechanismmentioning

confidence: 99%

Section: ) Notary Scheme Limitationsmentioning

confidence: 99%

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A Survey on Cross-Chain Technology: Challenges, Development, and Prospect

et al. 2023

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“…Existing cross-chain systems are mainly based on notary scheme [ 3 ], hash-locking [ 11 ], sidechain [ 12 , 13 ] or relay chain [ 14 , 15 ]. Among them, the scheme based on relay chains has more application scenarios and better scalability.…”

Section: Introductionmentioning

confidence: 99%

A Scalable Cross-Chain Access Control and Identity Authentication Scheme

Ding

Zhang

Qin

et al. 2023

Sensors

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Cross-chain is an emerging blockchain technology which builds the bridge across homogeneous and heterogeneous blockchains. However, due to the differentiation of different blockchains and the lack of access control and identity authentication of cross-chain operation subjects, existing cross-chain technologies are struggling to accomplish the identity transformation of cross-chain subjects between different chains, and also pose great challenges in terms of the traceability and supervision of dangerous transactions. To address the above issues, this paper proposes a scalable cross-chain access control and identity authentication scheme, which can authenticate the legitimacy of blockchains in the cross-chain system and ensure that all cross-chain operations are carried out by verified users. Furthermore, it will record all cross-chain operations with the help of Superchain in order to regulate and trace illegal transactions. Our scheme is scalable and, at the same time, has low invasiveness to blockchains in the cross-chain system. We implement the scheme and accordingly conduct the evaluations, which prove its security, efficiency, and scalability.

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A Fast Cross‐Chain Protocol Based on Trusted Notary Group for Metaverse

Ding,

Huang,

Liang

et al. 2024

Int J Network Mgmt

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The metaverse is a virtual environment that combines the real and digital worlds through technological and social structures. It heralds a novel paradigm in internet applications and societal engagement by weaving together diverse cutting‐edge technologies to facilitate a virtual representation of the tangible world. Within the metaverse, the facets of economy, culture, and other dimensions are fully documentable, trackable, and quantifiable, largely owing to the capabilities of blockchain technology. Nonetheless, the transactional volume within the metaverse is typically substantial, posing challenges for a singular blockchain platform in terms of efficiency and support capacity. Consequently, a multi‐blockchain infrastructure becomes essential to underpin the economic fabric of the metaverse. Enabling the collaborative operation of multiple blockchain platforms, specifically achieving the seamless transfer of value across different blockchain ecosystems, has emerged as a critical challenge. To address this challenge, this paper introduces a cross‐chain protocol predicated on a multi‐role notary system designed to facilitate inter‐blockchain value transfers. The protocol specifies the functions of different entities within the notary framework, allocating specific duties to notaries, committees, and a leader. It also promotes mutual oversight among notaries to sustain a dynamic and equitable group structure. Furthermore, an incentive mechanism is proposed to motivate committee members toward prompt and judicious decision‐making regarding votes. Based on experiments conducted on the Ethereum platform, our proposed solution exhibits a 75% reduction in transaction time compared to Ethereum's transaction confirmation time.

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A Decentralized Cross-Chain Service Protocol based on Notary Schemes and Hash-Locking

Cited by 20 publications

References 15 publications

A Survey on Cross-Chain Technology: Challenges, Development, and Prospect

A Survey on Cross-Chain Technology: Challenges, Development, and Prospect

A Scalable Cross-Chain Access Control and Identity Authentication Scheme

A Fast Cross‐Chain Protocol Based on Trusted Notary Group for Metaverse

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