This paper analyzes the efficiency and security of bi- linear-map-based schemes and brings about an AAA based publicly auditable scheme for cloud computing, which is much more efficient. In this scheme, a trust model ...This paper analyzes the efficiency and security of bi- linear-map-based schemes and brings about an AAA based publicly auditable scheme for cloud computing, which is much more efficient. In this scheme, a trust model including four entities is designed to provide both integrity and confidentiality protection. The proposed scheme can be proved to achieve the security goals that no cheating cloud server can pass the auditing without storing users＇ data intact. The efficiency of the proposal is evaluated by analyzing the fulfillment of the design goals, including the computation cost, communication cost and storage cost of our scheme. This light weight publicly auditable Proof-of-storage scheme achieves security goals perfectly, and has an excellent efficiency performance superior to the current bilinear-map-based publicly auditable Proof-of-storage scheme.展开更多
基金Supported by the National Natural Science Foundation of China(61101088)the Opening Project of Key Lab of Information Network Security of Ministry of Public Security(C13607)
文摘This paper analyzes the efficiency and security of bi- linear-map-based schemes and brings about an AAA based publicly auditable scheme for cloud computing, which is much more efficient. In this scheme, a trust model including four entities is designed to provide both integrity and confidentiality protection. The proposed scheme can be proved to achieve the security goals that no cheating cloud server can pass the auditing without storing users＇ data intact. The efficiency of the proposal is evaluated by analyzing the fulfillment of the design goals, including the computation cost, communication cost and storage cost of our scheme. This light weight publicly auditable Proof-of-storage scheme achieves security goals perfectly, and has an excellent efficiency performance superior to the current bilinear-map-based publicly auditable Proof-of-storage scheme.
