PCSP: A Protected Cloud Storage Provider employing light weight techniques

ABSTRACT One of the major practices of cloud computing is the storage service that it offers. In spite of its many creditable advantages, it also has some disadvantages like data security and data availability. These two are the main issues that a user face. Many models have been proposed to solve these issues. These models use cryptographic methods to secure the data and data redundancy method to ensure data availability. Both these methods solved the issues at the cost of extra storage space and increased time consumption both at the user and at the server side. This paper recommends a model PCSP (Protected Cloud Service Provider) which solves these issues in a novel way. The model uses light weight techniques which does not employ cryptographic methods. PCSP uses a layered approach, with three entities – the user, the PCSP, and the vendor. Due to the use of light weight techniques, the execution time is reduced by 80% and the storage needed is also reduced by 60%. Thus, there is still more reduction in the storage space. The implementation and analysis serve as the proof of concept