SECURING RESOURCES IN DECENTRALISED CLOUD STORAGE

Abstract

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 towards 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.