Data outsourcing is today receiving growing attention due to its benefits in terms of cost reduction and better services. According to such paradigm, the data owner is no more responsible for data management, rather it outsources its data to one or more service providers (referred to as publishers) that provide management services and query processing functionalities. Clearly, data outsourcing ...

Attribute-based encryption (ABE) with outsourced decryption not only enables finegrained sharing of encrypted data, but also overcomes the effective drawback of the standard ABE schemes. An Attribute based encryption scheme with outsourced decryption allows a third party (e.g., a cloud server) to renovate an ABE cipher text into a (short) El Gamal-type cipher text using a public transformation ...

Xu, Huiqi. M.S., Department of Computer Science and Engineering, Wright State University, 2012. kNN-R: Building Secure and Efficient Outsourced kNN Query Service with the RASP encryption. With the wide deployment of public cloud computing infrastructures, outsourcing database services to the cloud has become an appealing solution to save operating expense. However, some databases might be so se...

As organizations struggle with vast amounts of data, outsourcing sensitive data to third parties becomes a necessity. To protect the data, various cryptographic techniques are used in outsourced database systems to ensure data privacy, while allowing efficient querying. Recent attacks on such systems (e.g., [37, 30]) demonstrate that outsourced database systems must trade-off efficiency and pri...

There is no subsisting result can quietly support the ownership of both exactitude and integrity for the query corollary (result), notably in the case when the fraudulent cloud service provider (CSP) deliberately recompense (returns) an empty set for the query asked by the user.The new verifiable auditing scheme for outsourced database, which can concurrently achieve the exactitude and integrit...

A complex problem when outsourcing data to the cloud is access control management. Encryption, by wrapping with a self-enforcing protection layer, provides enforcement making resources intelligible only users holding necessary key. The real challenge becomes then efficient revocation of access. We address this and present an approach effectively efficiently enforce on stored at external provide...

For better data availability and accessibility while ensuring secrecy, end-users often tend to outsource their the cloud servers in an encrypted form. However, this brings a major challenge perform search for some keywords over content without disclosing any information unintended entities. This paper proposes novel expressive authorized keyword scheme relying on concept of ciphertext-policy at...

The networked and increasingly ubiquitous nature of today’s data management services mandates assurances to detect and deter malicious or faulty behavior. This is particularly relevant for outsourced data frameworks in which clients place data management with specialized service providers. Clients are reluctant to place sensitive data under the control of a foreign party without assurances of c...