REDONDA: A Next-Generation State-Machine Replication Protocol for Blockchain

REDONDA：区块链的下一代状态机复制协议

• 批准号: EP/Y036425/1
• 负责人: Gregory Chockler
• 金额: $ 17.88万
• 依托单位: University of Surrey
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FY036425%2F1
• 关键词: REDONDA; Next; Generation; State; Machine

The REDONDA project's ambition is to design a next-generation replication protocol for blockchain. To achieve this, the project taps into recent advances in networking, secure computing and distributed systems. At the scale of a datacenter, the protocol relies on two recent technologies: RDMA and TEE. Both technologies are leveraged to create a sub-microsecond consensus layer that tolerates Byzantine failures. TEEs are also used in a novel upgradable and portable smart contract engine to execute blockchain transactions across a variety of infrastructures and hardware. Between data centres, the protocol relies on leaderless state-machine replication. This recent approach decomposes transaction ordering into two sub-tasks that can execute in parallel, without a central coordinator to bottleneck the system. To ensure security and safety at runtime, the REDONDA project creates the blockchain protocol by composing mechanically-verified building blocks. The new blockchain protocol is assessed using real hardware against benchmarks and publicly available traces. We target that it scales across hundreds of geo-distributed nodes while offering 100k+ transactions per second and split-second latency.

Redonda项目的野心是为区块链设计下一代复制协议。为了实现这一目标，该项目涉及网络，安全计算和分布式系统的最新进展。根据数据中心的规模，该协议依赖于最近的两种技术：RDMA和TEE。这两种技术都均已利用以创建一个耐受拜占庭失败的亚微秒共识层。 TEE还用于新颖的可升级和便携式智能合约引擎中，以在各种基础架构和硬件上执行区块链交易。在数据中心之间，该协议依赖于无领导的状态机器复制。这种最近的方法将交易订购分解为两个子任务，可以并行执行，而无需中央协调器以瓶颈。为了确保运行时的安全性和安全性，Redonda项目通过组成机械验证的构件来创建区块链协议。使用实际硬件针对基准和公开可用的痕迹评估新的区块链协议。我们针对的是，它在数百个地理分布的节点上缩放，同时提供每秒100k+交易的延迟和分裂的延迟。