On providing sink anonymity for wireless sensor networks

Abstract

Sinks usually broadcast their addresses for data collection in sensor networks. However, this common operation opens up vulnerability for adversary to attack the sinks and obstruct their normal functions. In this paper, we suggest sink anonymity as a novel approach for data collection, which protects the privacy of the sinks and avoids them from becoming the target of attacks. We provide sink anonymity by omitting the address of the sink in routing, so that the identity and location of the sink are kept private. Our proposed Randomized Routing with Hidden Address (RRHA) scheme prevents the attackers from obtaining the receiver address by capturing the destination field of the packets or predicting the location of the sinks by observing the flow of network traffic. We examined the successful delivery rate, packet travel delay, and protection strength of our proposed scheme by both analysis and simulations. Address (RRHA) scheme which keeps the identity and location of the sink secret in the network. Sensors do not know who and where the sink is when routing the packets. Our scheme does not include the destination field in the header of the packets. The packets are routed from the source to the sink along a random path without a specific destination. When the packet travels along the path and arrives the sink, the sink will decrypt and read the message silently. The packet continues traveling until a predefined hop count is reached. Our system can prevent attackers from capturing or predicting the receiver location by reading the destination field of the packet or observing the network traffic. Keeping the identity and location of the sink private can prevent the sink from becoming the target of attacks. We also exam-

A probability based hybrid energy-efficient privacy preserving scheme to encounter with wireless traffic snooping in smart home

“…In the other hand, sink nodes of the network can detect and discard fake packets. It seems maximizing the number of dummy packet is an effective solution [11], [16]. But exceeding energy consumption is a serious barrier to let this method become a practical solution.…”

“…Studying existing solutions in similar domains such as wireless sensor networks and MANET shows those approaches cannot be applied directly into the domain of smart home due to producing undesirable extra delay or increasing the energy consumption [8], [9]. Thus, in this paper, we propose a Hybrid Energy-Efficient Privacy Preserving Scheme which is improved version of dummy packet injection approach [10], [11] and a random timing interval generator for determining the transmitting slot. Suggested solution is a decision-making algorithm based on probability theorem and it works by aim of maximizing the confusion level of the attack in its way to discover the correct pattern.…”

Secure and efficient dynamic program update in wireless sensor networks

“…Recently, wireless sensor networks (WSNs) have attracted a great deal of research attention because of their wide range of potential applications including military, healthcare, and security . A typical sensor network usually has one base station that serves as the commander and data sink.…”