Ensuring Data Storage Security in Cloud Computing Using Homomorphism Token

Cloud computing is a new computational paradigm that offers an innovative business model for organization to adopt IT without upfront investments. Despite the potential gain achieved from the cloud computing. The security is an important aspect of quality of services. To ensures the correctness of user data in cloud. In the cloud many services are provided to the client by cloud. Data store is main future that cloud service provides to the companies to store huge amount of storage capacity. But still many companies are not ready to implement cloud computing technology due to lack of proper security control policy and weakness in protection which lead to many challenge in cloud computing. The main objectives of this paper are, 1) To prevent Data access from unauthorized access, it propose a distributed scheme to provide security of the data in cloud .This could be achieved by using homomorphism token with distributed verification of erasure-coded data. 2) Proposed scheme perfectly stores the data and identifies the any tamper at the cloud server. 3) And also performs some of the tasks like data updating, deleting, appending.