NDLI: Multi-Dimensional Range Query over Encrypted Data

Content Provider	IEEE Xplore Digital Library
Author	Shi, E. Bethencourt, J. Chan, T.-H.H. Dawn Song Perrig, A.
Copyright Year	2007
Description	Author affiliation: Carnegie Mellon Univ., Pittsburgh, PA (Shi, E.; Bethencourt, J.; Chan, T.-H.H.; Dawn Song; Perrig, A.)
Abstract	We design an encryption scheme called multi-dimensional range query over encrypted data (MRQED), to address the privacy concerns related to the sharing of network audit logs and various other applications. Our scheme allows a network gateway to encrypt summaries of network flows before submitting them to an untrusted repository. When network intrusions are suspected, an authority can release a key to an auditor, allowing the auditor to decrypt flows whose attributes (e.g., source and destination addresses, port numbers, etc.) fall within specific ranges. However, the privacy of all irrelevant flows are still preserved. We formally define the security for MRQED and prove the security of our construction under the decision bilinear Diffie-Hellman and decision linear assumptions in certain bilinear groups. We study the practical performance of our construction in the context of network audit logs. Apart from network audit logs, our scheme also has interesting applications for financial audit logs, medical privacy, untrusted remote storage, etc. In particular, we show that MRQED implies a solution to its dual problem, which enables investors to trade stocks through a broker in a privacy-preserving manner.
Starting Page	350
Ending Page	364
File Size	316506
Page Count	15
File Format	PDF
ISBN	0769528481
ISSN	10816011
DOI	10.1109/SP.2007.29
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-05-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cryptography Data privacy Collaboration Protocols Testing Information security Intrusion detection Large-scale systems Web and internet services
Content Type	Text
Resource Type	Article

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