A novel method to secure cloud computing through multicast key management

Cloud computing is the technology that uses the internet and central remote servers to maintain data and applications. Cloud computing allows consumers and businesses to use applications without installation and access their personal files at any computer with internet access. This technology allows for much more efficient computing by centralizing storage, memory, processing and bandwidth. In this security is an important issue to provide a security for this cloud we introduce a novel method for securing cloud by providing multicast key for each user. It will be a dynamic session key which will vary in the time of period. Whenever a new user enters into the cloud the new key will be generated. It will withstand for a time period. After that time period the user should renew the key for the further usage of the cloud.