Literature Review on: Secure Sharing of Data for Dynamic Groups in Cloud

Cloud computing is an emerging computing paradigm aiming to share storage, computation and service transparently among a massive users and to gathered great momentum from not only industry but also academia. Clod computing had overlaps many existing concepts such as distributed system. Data security is the challenging issue in cloud computing paradigm where the user store sensitive information on cloud servers. Also, data confidentiality against cloud server is required, when users outsource data for storage in the cloud. Existing solutions generally use cryptographic methods like encryption and decryption. The biggest concerns with cloud data storage is that of data integrity verification at untrusted server. To preserve data privacy, a basic solution is to encrypt data files, and then upload the encrypted data into the cloud. By adding the reliability as well as improving the scalability by increasing the number of group managers dynamically we can secure multi-users data sharing for dynamic groups in the cloud.