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首页> 外文期刊>IEEE Transactions on Parallel and Distributed Systems >Eavesdropping Prevention for Network Coding Encrypted Cloud Storage Systems
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Eavesdropping Prevention for Network Coding Encrypted Cloud Storage Systems

机译：网络编码加密云存储系统的窃听预防

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摘要

Network coding is an important cloud storage technique, which can recover data with small repair bandwidth and high reliability compared to the existing erasure coding and replication methods. However, regardless of which data recovery technique is used, the repaired data in a geographically distributed cloud storage system are easy to be eavesdropped at the transmission link between the local datacenter and its remote backup site. This kind of network security issue is called link eavesdropping in this paper. For a network coded cloud storage system, we propose a systematic design methodology to determine the important data recovery system parameters for any specified security level. Through analysis, we present the performance curves to relate the remote repair bandwidth and the number of coded data fragments. Consequently, all the important system parameters of a network coded data recovery system, including the number of storage nodes and the link capacity between the datacenter and the backup site, can be precisely designed for satisfying different security level requirements.
机译：网络编码是一项重要的云存储技术，与现有的擦除编码和复制方法相比，它可以以较小的修复带宽和高可靠性来恢复数据。但是，无论使用哪种数据恢复技术，都容易在本地数据中心与其远程备份站点之间的传输链路上窃听地理分布的云存储系统中的已修复数据。本文将这种网络安全问题称为链路窃听。对于网络编码的云存储系统，我们提出了一种系统设计方法，以确定任何指定安全级别的重要数据恢复系统参数。通过分析，我们提出了性能曲线，以将远程修复带宽与编码数据片段的数量相关联。因此，可以精确设计网络编码数据恢复系统的所有重要系统参数，包括存储节点的数量以及数据中心和备份站点之间的链接容量，以满足不同的安全级别要求。

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