论文标题
基于区块链的分散存储网络中拓扑意识的合作数据保护
Topology-Aware Cooperative Data Protection in Blockchain-Based Decentralized Storage Networks
论文作者
论文摘要
从货币到云存储系统，区块链技术的连续崛起正在将各种信息系统转移到权力下放。与与特定供应商相关的集中式云存储相比，基于区块链的分散存储网络（DSN）为客户提供了更高的隐私和更低的成本。为了检索存储在失败组件上的数据，需要进行编码。尽管已经深入研究了用于集中存储的编码解决方案，但尚未讨论针对异构DSN的拓扑意识编码。在本文中，我们提出了一个联合编码方案，每个节点通过与附近的节点在异质的DSN中与任何给定的拓扑结构合作获得额外的保护。作为扩展，这也包含了我们对集中式云存储编码的先前工作，我们提出的构造保留了理想的属性，例如具有不同拓扑的网络中的可扩展性和灵活性。
From currency to cloud storage systems, the continuous rise of the blockchain technology is moving various information systems towards decentralization. Blockchain-based decentralized storage networks (DSNs) offer significantly higher privacy and lower costs to customers compared with centralized cloud storage associated with specific vendors. Coding is required in order to retrieve data stored on failing components. While coding solutions for centralized storage have been intensely studied, topology-aware coding for heterogeneous DSNs have not yet been discussed. In this paper, we propose a joint coding scheme where each node receives extra protection through the cooperation with nodes in its neighborhood in a heterogeneous DSN with any given topology. As an extension of, which also subsumes, our prior work on coding for centralized cloud storage, our proposed construction preserves desirable properties such as scalability and flexibility in networks with varying topologies.
