Occam:一种安全且自适应的无许可区块链扩展方案

2021 IEEE 41st International Conference on Distributed Computing Systems (ICDCS) Pub Date : 2021-07-01 DOI:10.1109/ICDCS51616.2021.00065

Jie Xu, Yingying Cheng, Cong Wang, X. Jia

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引用次数: 5

摘要

区块链的可扩展性是无权限区块链最需要的属性之一。最近的许多区块链协议都专注于提高交易吞吐量。然而，现有协议无法动态扩展吞吐量以满足事务需求。本文提出了一种安全的自适应标度方案Occam。Occam根据网络中的交易需求，自适应地改变交易吞吐量的大小。引入挖矿难度动态调整机制和挖矿力负载均衡机制，抵御各种攻击。此外，我们在拥有1000个完整节点的Amazon EC2集群上实现了Occam。实验结果表明，Occam可以大大提高区块链的吞吐量和挖矿功率利用率。

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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Occam: A Secure and Adaptive Scaling Scheme for Permissionless Blockchain

Blockchain scalability is one of the most desired properties for permissionless blockchain. Many recent blockchain protocols have focused on increasing the transaction throughput. However, existing protocols cannot dynamically scale the throughput to meet transaction demand. In this paper, we propose Occam, a secure and adaptive scaling scheme. Occam adaptively changes the transaction throughput by expanding and shrinking according to the transaction demand in the network. We introduce a dynamic adjustment mechanism of mining difficulty and a mining power load balancing mechanism to resist various attacks. Furthermore, we implement Occam on Amazon EC2 cluster with 1000 full nodes. Experimental results show that Occam can greatly increase the throughput of the blockchain and the mining power utilization.

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2021 IEEE 41st International Conference on Distributed Computing Systems (ICDCS)

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