Secure Ranked Multi-Keyword Search for Multiple Data Owners in Cloud Computing
Keywords:
PRSM,Cloud computing,Ranked keyword search, multiple owners, Privacy preserving, dynamic secret key, Cryptography, AuthenticationAbstract
The commencement of cloud computing, it has become with time trendy for data owners to outsource
their data to public cloud servers while permit data users to recover this data. For privacy concerns, protected searches
over encrypted cloud data have aggravated several research works under the single owner model. However, most cloud
servers in practice do not just serve one owner; instead, they support multiple owners to share the benefits brought by
cloud computing. In this paper, we propose schemes to deal with Security Maintaining Ranked Multi-keyword Search in
a Multi-owner model (PRMSM). To allow cloud servers to perform safe search without knowing the real data of both
keywords and trapdoors, we scientifically build a original secure search protocol. To rank the search results and preserve
the privacy of relevance scores between keywords and files,The propose a novel preservative arrange and Privacy
Preserving Function family. To protect the attackers from snooping secret keys and imagine to be official data users
submitting searches, we propose a new dynamic secret key creation protocol and a new data user verification protocol.
Also, PRMSM supports well-organized data user revocation. wide experiments on real-world datasets confirm the
efficacy and efficacy of PRMSM.