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    段田田, 郭仪, 李博, 张瀚文, 宋兆雄, 李忠诚, 张珺, 孙毅. PieBridge:一种按需可扩展的跨链架构[J]. 计算机研究与发展. doi: 10.7544/issn1000-1239.202230284
    引用本文: 段田田, 郭仪, 李博, 张瀚文, 宋兆雄, 李忠诚, 张珺, 孙毅. PieBridge:一种按需可扩展的跨链架构[J]. 计算机研究与发展. doi: 10.7544/issn1000-1239.202230284
    Duan Tiantian, Guo Yi, Li Bo, Zhang Hanwen, Song Zhaoxiong, Li Zhongcheng, Zhang Jun, Sun Yi. PieBridge:An On-demand Scalable Cross Chain Architecture[J]. Journal of Computer Research and Development. doi: 10.7544/issn1000-1239.202230284
    Citation: Duan Tiantian, Guo Yi, Li Bo, Zhang Hanwen, Song Zhaoxiong, Li Zhongcheng, Zhang Jun, Sun Yi. PieBridge:An On-demand Scalable Cross Chain Architecture[J]. Journal of Computer Research and Development. doi: 10.7544/issn1000-1239.202230284

    PieBridge:一种按需可扩展的跨链架构

    PieBridge:An On-demand Scalable Cross Chain Architecture

    • 摘要: 区块链由于其去中心、可溯源等特性,已被广泛应用于数字货币、供应链金融、智慧医疗等不同领域. 随着应用需求的不断拓宽,各独立区块链协作以构建更广泛价值互联网的需求日益增强,因而迫切需要研究跨链技术. 然而当前区块链生态规模不断扩大、丰富,异构/同构区块链间的互联互通需求也随之快速增长. 现有跨链研究无法应对这种趋势对跨链研究在架构可扩展性与跨链需求多样性方面提出的挑战. 针对上述问题,基于“按需建域”的理念,提出一种按需可扩展的跨链架构PieBridge,并首次提出了一套四层跨链交互协议栈,解耦跨链传输、验证、事务与应用,满足不同跨链应用在隐私、安全、性能等方面的差异化需求. 同时实现了PieBridge原型系统,并通过建模分析与实验验证证明了PieBridge的可扩展性,以及其对差异化跨链交互需求的灵活支持.

       

      Abstract: Due to its decentralized and traceable nature, blockchain has been widely used in various fields such as digital currency, supply chain finance, and smart healthcare. As the demand for applications continues to expand, the need for independent blockchains to collaborate to build a broader value internet is increasing, making it urgent to study cross-chain technology. However, as blockchain develops towards the application chain model, the number of blockchains has greatly increased, and the scale of cross-chain interaction has also increased. Existing cross-chain research cannot meet the challenges posed by this trend in terms of architectural scalability and cross-chain requirements diversity. Therefore, featured by the idea of “on-demand domain”, this paper proposes an on-demand and scalable cross-chain architecture called PieBridge and raises a four-layer cross-chain interaction protocol stack for the first time. By decoupling cross-chain transmission, verification, transactions and applications, our protocol stack meets the diverse requirements of cross-chain applications in terms of privacy, security, and performance. This paper implements the PieBridge prototype system and further verifies PieBridge’s scalability and flexible support for diverse cross-chain interactions from both theoretical and experimental perspectives.

       

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