Secret Sharing in Multi-Clouds
Single cloud has become very common in many organizations. The main reason for this popularity is the increase in
productivity, cost efficiency, accessibility, and reliability. But now there is a movement towards a multi-cloud environment so
that organizations can distribute the workload. This also eliminates the risk of service unavailability that customers often come
across. Hence, lately, there has been a buzz around multi-clouds or inter-clouds or cloud-of-clouds. This paper focuses on
maintaining the security in multi-cloud storage using a (, )-threshold secret sharing mechanism. We also use multi-level
threshold secret sharing using Chinese Remainder Theorem for hierarchical cloud infrastructure. Analysis of the security
features proves that this scheme achieves data security.
Index Terms - Chinese Remainder Theorem, Multi-Clouds, Security, Secret Sharing.