Secure cloud storage and search scheme for mobile devices

摘要

In this paper, we consider the problem of securing mobile-cloud storage services. We design and develop a novel and secure searchable encryption scheme for mobile devices. In the proposed algorithm, a content based index is constructed and a locality sensitive hashing is used to allow the user to store his files on the cloud in a secure way and then perform a secure query and a fuzzy search. Moreover, the scheme allows to rank the results while maintaining the privacy and confidentiality of the user and to save storage space and computation resources of his mobile phone. To quantify the performance of the proposed scheme, a range of tests are performed and experimental results demonstrate that the proposed system is suitable for a secure, fast and searchable storage mobile-cloud system.