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In consideration of feasibility, searchable encryption schemes in multi-user setting have to handle the problem of dynamical user injection and revocation, especially to make sure that user revocation will not cause security issues, such as secret key leakage. Recently, fine-grained access control using trusted third party is proposed to resolve this issue, however, it increases the management complexity...
Recently, searching over encrypted data has become a hot research topic. Basic idea of privacy enhanced search is to generate an intermediate representation of the original text data and use it to perform the search. Prior research has used hash maps, tries, and other data structures to create the intermediate representation. We use a texture scheme for representing the characters. To enhance the...
The cloud computing paradigm has been receiving much attention recently, and data management applications such as e-business are potential candidates for deployment in the cloud. In this paper, we introduce CloudCDI, which is a platform for collaborative integration and management of community information in the cloud. We present the architecture for CloudCDI, which is based on cloud computing framework...
different keys. We achieved the scheme using multikey fully homomorphic encryption (MFHE) which is capable of operating on inputs encrypted under multiple, unrelated keys. Based on this, we extended the scheme to multiple keyword searching.
With the advances in sensor networks and in the Internet of Things, the data management problem for massive heterogeneous sensor data has become a hot research issue. It is obvious that a cloud data management framework for this purpose is greatly desirable. In this paper, we propose a Relational Data-Base and Key-Value store combined Cloud Data management ("RDB-KV CloudDB") framework for...
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