A Verifiable Secret Sharing Approach for Secure MultiCloud Storage

Cloud computing is a model to access shared pool of configurable computing resources which comprise servers, applications, services and network components. The fact that this model can provide both computation and storage at low tax makes it popular among corporations. This also makes it a very captivating proposition for the future. But in spite of its promise and potential, security in the cloud proves to be a cause for concerns to the business sector. This is due to the outsourcing of data onto third party managed cloud platform. These security concerns also make the use of cloud services not so much flexible. The main issues associated with data storage management are confidentiality and integrity. However, a novel approach of "multi-cloud" or "cloud of clouds" has emerged currently using Shamir's Secret Sharing algorithm to address both confidentiality and integrity concerns. The implementation of Shamir's Secret Sharing algorithm is performed to authenticate a unique user and to access a particular file from the Cloud storage. There are many different Secret Sharing algorithms and each of them has its pros and cons. In this paper, data is protected using a secure Shamir's Secret Sharing scheme and our novel approach for Verifiable Secret Sharing to identify the honest dealer and the shareholders.