Implementation of Attribute Hiding Strategy and Key Revocation in Cloud Environment
BH Parameshwar Keerthi · 2014
Cloud Computing is a type of computing that relies on sharing computing resources rather than having local servers or personal devices to handle applications. Cloud Computing is comparable to grid Computing, a type of computing where unused Processing cycles of all computers in networks are hareness to solve problems too intensive for any stand-alone machine. I propose a privacy preserving access, scheme for data storage, which supports anonymous authentication and performs decentralized key management. In the proposed scheme, the cloud adopts an access control policy and attributes hiding strategy to enhance security. This new scheme further prevents replay attacks and supports secure and efficient dynamic operation on data blocks, including: data update, creation, modification and reading data stored in the cloud. Moreover, the authentication and access control scheme is decentralized and robust, unlike other access control schemes designed for clouds which are centralized. I also provide options for file recovery. Extensive security and performance analysis shows that the proposed scheme is highly efficient and resilient against replay attacks. User revocation and access control policies highly contributes to avoid abuse of cloud services and shared technology issues.