원문정보
초록
영어
Outsourcing a file to a remote cloud storage provides several benefits, including scalability, accessibility, data replication and considerable cost saving. Unfortunately, when we send a file to a remote cloud storage server, we do not know if this file is intact. To address this problem, we present a remote file possession checking protocol. In this protocol, we use three technologies: Firstly, we design a kind of file block tag whose security is based on the discrete logarithm problem (DLP); secondly, we use probability checking method to improve its effectiveness; thirdly, we use tag aggregation method to reduce its communication cost. Our theory analysis and experiment results show that our protocol is practical and secure.
목차
1. Introduction
2. The System Model and the Problem
3. A Remote File Possession Checking Protocol
4. Security Analysis
5. Experiment
6. Conclusion
References