减少分片区块链存储和引导成本的安全再生代码

Divija Swetha Gadiraju, V. Lalitha, V. Aggarwal
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引用次数: 8

摘要

区块链是一种应用广泛的分布式账本。由于区块链的存储需求不断增加,计算只能由少数矿工提供。分片被提出用于扩展区块链,以牺牲安全保障为代价提高区块链的存储和交易效率。本文旨在考虑一种新的协议,即安全修复区块链(SRB),旨在降低矿工的存储成本。此外,SRB还降低了启动成本,这使得新矿工可以轻松加入分片区块链。为了减少存储空间,在SRB中采用了编码理论技术。为了减少传输到加入分片的新节点的数据量,使用了精确修复安全再生代码的概念。与不使用编码的区块链协议相比,所提出的区块链协议实现了更低的存储,并且与不同基线相比,实现了更低的启动成本。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Secure Regenerating Codes for Reducing Storage and Bootstrap Costs in Sharded Blockchains
Blockchain is a distributed ledger with wide applications. Due to the increasing storage requirement for blockchains, the computation can be afforded by only a few miners. Sharding has been proposed to scale blockchains so that storage and transaction efficiency of the blockchain improves at the cost of security guarantee. This paper aims to consider a new protocol, Secure-Repair-Blockchain (SRB), which aims to decrease the storage cost at the miners. In addition, SRB also decreases the bootstrapping cost, which allows for new miners to easily join a sharded blockchain. In order to reduce storage, coding-theoretic techniques are used in SRB. In order to decrease the amount of data that is transferred to the new node joining a shard, the concept of exact repair secure regenerating codes is used. The proposed blockchain protocol achieves lower storage than those that do not use coding, and achieves lower bootstrapping cost as compared to the different baselines.
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