A Novice Group Sharing Method for Public Cloud

Cloud Computing has been envisioned as the next-wave system architectures of IT. Cloud storage service brings benefit of not only low cost and scalability, but also great appropriateness for group sharing, such as e-learning resource storage. In this paper, we propose a scalable and efficient group sharing method for public cloud. It is based on the key tree approach and the well-known Diffie-Hellman cryptographic protocol.