论文标题
在边缘iot应用的有限时间块的区块链设计中的权衡
Trade-offs in the Design of Blockchain of Finite-Lifetime Blocks for Edge-IoT Applications
论文作者
论文摘要
与无限期存储的比特币中的加密货币交易不同，某些应用程序（例如IOT）的数据具有有限的少数时间。在这种情况下，最近的一项研究作品提出了Litichain，这是一种新建筑，用于有限寿命区块的区块链，并将其应用于Edge-iot。 Litichain的新颖性在于确保即使从链条中删除过期的块后，链的连通性也是如此。为了提供与传统区块链相同的安全性，在Litichain中，一些区块的存储时间比其寿命更长，这会产生额外的存储成本。本文介绍了两个新的区块链体系结构，即P-Litichain和S-Litichain是Litichain的变体。在存储成本，安全成本和计算成本之间的权衡方面，拟议的体系结构在设计有限的区块的区块链设计方面提供了一定程度的自由度。通过大量的模拟和分析，可以证明，所提出的架构有可能将Litichain的额外存储成本降低到零，并以计算成本为代价提高安全性。
Unlike cryptocurrency transactions in bitcoin that are stored indefinitely, the data of certain applications like IoT have finite-lifetime. In this context, one of the recent research works proposed LiTiChain - a new architecture for Blockchain of finite-lifetime blocks with applications to Edge-IoT. The novelty of LiTiChain lies in ensuring the connectivity of the chain even after the expired blocks are deleted from the chain. To provide the same level of security as conventional blockchain, in LiTiChain, some blocks are stored longer than their lifetime, which incurs additional storage cost. This paper presents two new blockchain architectures i.e. p-LiTiChain and s-LiTiChain that are variants of LiTiChain. The proposed architectures offer a degree of freedom in the design of blockchain of finite-lifetime blocks in terms of a tradeoff between storage cost, security and computational cost. With extensive simulations and analysis, it is demonstrated that the proposed architectures have the potential to decrease the additional storage cost incurred by LiTiChain to zero and improve security at the expense of computational cost.
