论文标题
分布式存储中的保密和可访问性
Secrecy and Accessibility in Distributed Storage
论文作者
论文摘要
分布式存储系统（DSS）需要有效访问和维修。最近，已经为后者付出了巨大的努力，而通常不考虑前者，因为以系统编码的形式存在微不足道的解决方案。但是，在考虑必须安全防止窃听器的存储时，这不是一个可行的选择。这项工作调查了在此类安全限制下有效访问存储在DSS上的数据的问题。此外，我们建立了平衡访问负载的方法，即确保每个节点经常访问。我们建立了独立案例的能力，并提供明确的代码构建。对于与字母依赖的情况，我们基于随机编码参数给出了存在结果。
A distributed storage system (DSS) needs to be efficiently accessible and repairable. Recently, considerable effort has been made towards the latter, while the former is usually not considered, since a trivial solution exists in the form of systematic encoding. However, this is not a viable option when considering storage that has to be secure against eavesdroppers. This work investigates the problem of efficient access to data stored on an DSS under such security constraints. Further, we establish methods to balance the access load, i.e., ensure that each node is accessed equally often. We establish the capacity for the alphabet independent case and give an explicit code construction. For the alphabet-dependent case we give existence results based on a random coding argument.
