The dining cryptographers problem: unconditional sender and recipient untraceability
Journal of Cryptology
Crowds: anonymity for Web transactions
ACM Transactions on Information and System Security (TISSEC)
Untraceable electronic mail, return addresses, and digital pseudonyms
Communications of the ACM
k-anonymous message transmission
Proceedings of the 10th ACM conference on Computer and communications security
Intrusion Tolerance and Anti-Traffic Analysis Strategies For Wireless Sensor Networks
DSN '04 Proceedings of the 2004 International Conference on Dependable Systems and Networks
Source-location privacy in energy-constrained sensor network routing
Proceedings of the 2nd ACM workshop on Security of ad hoc and sensor networks
Enhancing Source-Location Privacy in Sensor Network Routing
ICDCS '05 Proceedings of the 25th IEEE International Conference on Distributed Computing Systems
Countermeasures Against Traffic Analysis Attacks in Wireless Sensor Networks
SECURECOMM '05 Proceedings of the First International Conference on Security and Privacy for Emerging Areas in Communications Networks
Towards event source unobservability with minimum network traffic in sensor networks
WiSec '08 Proceedings of the first ACM conference on Wireless network security
Preserving source location privacy in monitoring-based wreless sensor networks
IPDPS'06 Proceedings of the 20th international conference on Parallel and distributed processing
A novel scheme for protecting receiver's location privacy in wireless sensor networks
IEEE Transactions on Wireless Communications
Anonymous connections and onion routing
IEEE Journal on Selected Areas in Communications
Secure localization and authentication in ultra-wideband sensor networks
IEEE Journal on Selected Areas in Communications - Part 1
An experimental comparison of source location privacy methods for power optimization in WSNs
SENSIG '10/MATERIALS'10 Proceedings of the 3rd WSEAS international conference on Advances in sensors, signals and materials
Privacy Provisioning in Wireless Sensor Networks
Wireless Personal Communications: An International Journal
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Wireless sensor networks (WSN) have been widely used in many areas for unattended event monitoring. Mainly due to lack of a protected physical boundary, wireless communications are vulnerable to unauthorized detection, interception and and even node capture. Privacy is becoming one of the major issues that jeopardize the successful deployment and survivability of wireless sensor networks. While confidentiality of the message can be ensured through content encryption, it is much more difficult to adequately address the source-location privacy. For WSN, source-location privacy service is further complicated by the fact that the sensor nodes consist of low-cost and low-power radio devices, computationally intensive cryptographic algorithms (such as public-key cryptosystems) and large scale broadcasting-based protocols are not suitable for WSN. In this paper, we propose a two-step routing strategy for the messages to be routed from the actual source node to the SINK node through either a single, or multiple, randomly selected intermediate node(s) away from the source node so that it is to make it infeasible for the adversaries to trace back to the source node through hop-by-hop routing analysis. In the first protocol, the messages will be routed to a single intermediate node. This scheme can provide very good local source-location privacy. We also propose routing through multiple randomly selected intermediate nodes based on angle and quadrant to further improve the performance and security. While providing source-location privacy for WSN, our simulation results demonstrate that the proposed schemes are very efficient in energy consumption, and transmission latency. The proposed schemes can also assurance high message delivery ratio. Therefore, they can be used for many practical applications.