Query Racing: Fast Completeness Certification of Query Results

Palazzi, Bernardo; Pizzonia, Maurizio; Pucacco, Stefano

doi:10.1007/978-3-642-13739-6_12

Cited by 14 publications

(11 citation statements)

References 26 publications

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“…Some notable works in this direction are reported in [17,14,5,7,18,23,25,36]. These techniques involve using a special data structure along with some cryptographic authentication mechanism like hash functions and/or signatures schemes.…”

Section: Incomplete Resultmentioning

confidence: 99%

RDAS: A Symmetric Key Scheme for Authenticated Query Processing in Outsourced Databases

Rodríguez-Henríquez

Chakraborty

2013

Security and Trust Management

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Abstract. In this paper we address the problem of authenticated query processing in outsourced databases. An authenticated query processing mechanism allows a client to verify the validity of the query responses that it gets from an un-trusted and remote server, who stores the client's database on its behalf. We introduce a general framework called RDAS for the problem of authenticated query processing, and define the security goals for this task in line with concrete provable security. We propose several schemes which enable a client to verify both the completeness and correctness of the query responses of a server. All the schemes follow the proposed framework and are provably secure in terms of the proposed security definition. The novelty of the proposed schemes is that they use bitmap indexes as a main component for providing authentication. Bitmap indexes have recently seen lot of applications for accelerated query processing and many commercial databases implement such indexes. Bitmaps have not been previously used for a security goal. We show that the proposed schemes can match in both functionality and efficiency compared to the existing schemes. We also implement the schemes on a real database and provide extensive experimental studies on the schemes.

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Section: Incomplete Resultmentioning

confidence: 99%

RDAS: A Symmetric Key Scheme for Authenticated Query Processing in Outsourced Databases

Rodríguez-Henríquez

Chakraborty

2013

Security and Trust Management

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“…Palazzi [16,17] constructs one skip list for each searchable column in each table. An important problem with this scheme is that for multi-dimensional queries, only the result of one skip list (determined by the First Column Returned approach [16], or the fastest one [17]) is used.…”

Section: Related Workmentioning

confidence: 99%

“…An important problem with this scheme is that for multi-dimensional queries, only the result of one skip list (determined by the First Column Returned approach [16], or the fastest one [17]) is used. The result set is sent to the client who will apply the other clauses.…”

Section: Related Workmentioning

confidence: 99%

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Database Outsourcing with Hierarchical Authenticated Data Structures

Etemad

Küpçü

2014

Information Security and Cryptology -- ICISC 2013

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Abstract. In an outsourced database scheme, the data owner delegates the data management tasks to a remote service provider. At a later time, the remote service is supposed to answer any query on the database. The essential requirements are ensuring the data integrity and authenticity with efficient mechanisms. Current approaches employ authenticated data structures to store security information, generated by the client and used by the server, to compute proofs that show the answers to the queries are authentic. The existing solutions have shortcomings with multi-clause queries and duplicate values in a column. We propose a hierarchical authenticated data structure for storing security information, which alleviates the mentioned problems. We provide a unified formal definition of a secure outsourced database scheme, and prove that our proposed scheme is secure according to this definition, which captures previously separate properties such as correctness, completeness, and freshness. The performance evaluation based on our prototype implementation confirms the efficiency of the proposed outsourced database scheme, showing more than 50% decrease in proof size and proof generation time compared to previous work, and about 1-20% communication overhead compared to the query result size.

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“…• The tree-based approach: Basically, this approach uses the Merkle hash tree [15] or its variants to index search keys [11,17,13,7,16,31,20,21]. As a result, this approach leads to logarithmic complexity in terms of both communication and verification, possibly with some further tricks (e.g., using the Merkle hash tree to maintain signatures at multiple hash tree levels [11]).…”

Section: Related Workmentioning

confidence: 99%

Efficient query integrity for outsourced dynamic databases

Zheng

Ateniese

2012

Proceedings of the 2012 ACM Workshop on Cloud Computing Security Workshop

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As databases are increasingly outsourced to the cloud, data owners require various security assurances. This paper investigates one particular assurance, query integrity, by which a database querier (either the data owner or a third party) can verify that its queries were faithfully executed by the cloud server with respect to the outsourced database. Query integrity is investigated in the setting of dynamic databases, where the outsourced databases can be updated by the data owners as needed. We present a formal security definition of query integrity and a provably-secure efficient construction. Our solution improves upon the state-of-the-art solutions by additionally allowing aggregate queries and more flexible join queries. In addition, we provide better performance by eliminating a linear factor in the extra storage complexity for security purpose. Our solution also achieves a trade-off between computational and communication complexities.

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Query Racing: Fast Completeness Certification of Query Results

Cited by 14 publications

References 26 publications

RDAS: A Symmetric Key Scheme for Authenticated Query Processing in Outsourced Databases

RDAS: A Symmetric Key Scheme for Authenticated Query Processing in Outsourced Databases

Database Outsourcing with Hierarchical Authenticated Data Structures

Efficient query integrity for outsourced dynamic databases

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