A Decentralized Oracle Network Constructed From Weighted Schnorr Multisignature

IF 4.7 2区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Transactions on Network and Service Management Pub Date : 2025-02-10 DOI:10.1109/TNSM.2025.3539615

Zhiwei Wang

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Abstract

A decentralized oracle network is a good solution for blockchain interoperability, and a multisignature is a proper cryptographic primitive for off-chain aggregation where each participating signer’s public key can be identified during verification. An important requirement for the decentralized oracle network is that some important data requests may require high-reputation nodes to validate the external data, while some common data requests may need only low-cost nodes to execute the validation. Thus, we present a weighted Schnorr multisignature to meet this requirement, which is proven to be unforgeable. However, purely relying on the cryptographic scheme cannot fully identify each participating node’s reputation; thus, we design three on-chain contracts for recording and identifying the oracle nodes’ reputation and realizing the reword mechanism. The on-chain components (e.g., smart contracts) and the off-chain components (e.g., oracle nodes) constitute a whole blockchain interoperability system. We implement our system over the Ethereum platform and analyze its on-chain and off-chain costs.

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利用加权施诺尔多重签名构建的去中心化甲骨文网络

去中心化的oracle网络是区块链互操作性的一个很好的解决方案，多重签名是链下聚合的一种合适的加密原语，其中每个参与签名者的公钥可以在验证过程中被识别出来。分布式oracle网络的一个重要需求是，一些重要的数据请求可能需要高声誉的节点来验证外部数据，而一些常见的数据请求可能只需要低成本的节点来执行验证。因此，我们提出了一种加权Schnorr多重签名来满足这一要求，该多重签名被证明是不可伪造的。然而，单纯依靠加密方案无法完全识别每个参与节点的信誉；因此，我们设计了三个链上合约来记录和识别oracle节点的信誉，并实现了奖励机制。链上组件（如智能合约）和链下组件（如oracle节点）构成了一个完整的区块链互操作性系统。我们在以太坊平台上实现我们的系统，并分析其链上和链下成本。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Network and Service Management Computer Science-Computer Networks and Communications

CiteScore

9.30

自引率

15.10%

发文量

325

期刊介绍： IEEE Transactions on Network and Service Management will publish (online only) peerreviewed archival quality papers that advance the state-of-the-art and practical applications of network and service management. Theoretical research contributions (presenting new concepts and techniques) and applied contributions (reporting on experiences and experiments with actual systems) will be encouraged. These transactions will focus on the key technical issues related to: Management Models, Architectures and Frameworks; Service Provisioning, Reliability and Quality Assurance; Management Functions; Enabling Technologies; Information and Communication Models; Policies; Applications and Case Studies; Emerging Technologies and Standards.