NDLI: Classify encrypted data in wireless sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Yongdong Wu Di Ma Tieyan Li Deng, R.H.
Copyright Year	2004
Description	Author affiliation: Inst. for Infocomm Res., Singapore, Singapore (Yongdong Wu; Di Ma; Tieyan Li; Deng, R.H.)
Abstract	End-to-end security mechanisms, like SSL, may seriously limit the capability of in-network processing that is the most critical function in sensor networks. Supporting in-network processing can significantly improve the performance of extremely resource-constrained sensor networks featuring many-to-one traffic patterns. How to protect the traffic and support in-network processing at the same time is an open problem. The paper tackles the problem by proposing a model for categorizing encrypted messages in wireless sensor networks. A classifier, an intermediate sensor node in our setting, is embedded with a set of searching keywords in encrypted format. Upon receiving an encrypted message, it matches the message with the keywords and then processes the message based on certain policies such as forwarding the original message to the next hop, updating and forwarding it or simply dropping it on detecting a duplicate. The messages are encrypted before being sent out and decrypted only at their destinations. Although the intermediate classifiers can categorize the messages, except for several encrypted keywords, they learn nothing about the encrypted messages, not even statistical information. The scheme is efficient, flexible and resource saving. The performance analysis shows that the computational cost and communication cost are minimized. Furthermore, it is resilient to node capture attack and many other kinds of attacks. We are prototyping the model on our mote testbed.
Starting Page	3236
Ending Page	3239
File Size	124404
Page Count	4
File Format	PDF
ISBN	0780385217
ISSN	10903038
DOI	10.1109/VETECF.2004.1404660
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cryptography Wireless sensor networks Telecommunication traffic Traffic control Data security Protection Performance analysis Computational efficiency Costs Prototypes
Content Type	Text
Resource Type	Article

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