Papadopoulos, Stavros, Cormode, Graham, Deligiannakis, Antonis and Garofalakis, Minos (2014) Lightweight query authentication on streams. ACM Transactions on Database Systems, Volume 39 (Number 4). Article number 30. doi:10.1145/2656336

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Abstract

We consider a stream outsourcing setting, where a data owner delegates the management of a set of disjoint data streams to an untrusted server. The owner authenticates his streams via signatures. The server processes continuous queries on the union of the streams for clients trusted by the owner. Along with the results, the server sends proofs of result correctness derived from the owner's signatures, which are easily verifiable by the clients. We design novel constructions for a collection of fundamental problems over streams represented as linear algebraic queries. In particular, our basic schemes authenticate dynamic vector sums and dot products, as well as dynamic matrix products. These techniques can be adapted for authenticating a wide range of important operations in streaming environments, including group by queries, joins, in-network aggregation, similarity matching, and event processing. All our schemes are very lightweight, and offer strong cryptographic guarantees derived from formal definitions and proofs. We experimentally confirm the practicality of our schemes in the performance sensitive streaming setting.

Item Type:	Journal Article
Alternative Title:	Lightweight authentication of linear algebraic queries on data streams
Subjects:	Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software
Divisions:	Faculty of Science > Computer Science
Library of Congress Subject Headings (LCSH):	Data integrity, Streaming technology (Telecommunications), Computers -- Access control, Data encryption (Computer science)
Journal or Publication Title:	ACM Transactions on Database Systems
Publisher:	ACM
ISSN:	0362-5915
Official Date:	December 2014
Dates:	Date Event December 2014 Published July 2014 Accepted May 2014 Modified October 2013 Submitted
Date of first compliant deposit:	29 December 2015
Volume:	Volume 39
Number:	Number 4
Number of Pages:	45
Article Number:	Article number 30
DOI:	10.1145/2656336
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Description:	Accepted version: title differs from published version.
Funder:	European Commission (EC)
Grant number:	ICT-FP7-LEADS-318809 (EC)
Version or Related Resource:	Also published as: Papadopoulos, S., Cormode, G., Deligiannakis, A. and Garofalakis, M. (2013) "Lightweight authentication of linear algebraic queries on data streams". SIGMOD '13 Proceedings of the 2013 ACM SIGMOD International Conference on Management of Data, pp. 881-892.
Embodied As:	1
Related URLs:	Other

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