Decentralized cloud storage services represent a promising opportunity for a different cloud market, meeting the supply and demand for IT resources of an extensive community of users. The dynamic and independent nature of the resulting infrastructure introduces security concerns that can represent a slowing factor toward the realization of such an opportunity, otherwise clearly appealing and promising for the expected economic benefits. In this paper, we present an approach enabling resource owners to effectively protect and securely delete their resources while relying on decentralized cloud services for their storage. Our solution combines All-Or-Nothing-Transform for strong resource protection, and carefully designed strategies for slicing resources and for their decentralized allocation in the storage network. We address both availability and security guarantees, jointly considering them in our model and enabling resource owners to control their setting.

中文翻译：

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保护分散式云存储中的资源

分散式云存储服务为不同的云市场提供了可喜的机遇，可满足广大用户社区对IT资源的供需需求。所产生的基础架构的动态和独立性质带来了安全隐患，这可能是实现这种机会的一个缓慢因素，否则显然会吸引人并有望获得预期的经济利益。在本文中，我们提出一种方法，使资源所有者能够有效保护和安全地删除其资源，同时依靠分散的云服务进行存储。我们的解决方案结合了“全有或全有”转换以提供强大的资源保护，并精心设计了用于切片资源以及在存储网络中进行分散式分配的策略。