All-Direction Random Routing for Source-Location Privacy Protecting against Parasitic Sensor Networks

Area of Science:

• Computer Science
• Network Security
• Wireless Communication

Background:

• Wireless sensor networks (WSNs) face privacy challenges, particularly protecting source locations from parasitic networks.
• Existing solutions inadequately address contextual privacy in open wireless environments.

Purpose of the Study:

• To design an all-direction random routing (ARR) algorithm for source-location privacy protection in WSNs.
• To defend against parasitic sensor networks seeking to identify valuable data origins.

Main Methods:

• ARR divides package routing into three stages: agent node selection, source-to-agent delivery, and agent-to-destination delivery.
• Agent nodes are randomly selected in all directions using local decisions, without requiring global network topology knowledge.
• ARR ensures distinct routing paths for identical source-destination pairs, enhancing privacy.

Main Results:

• ARR effectively confuses parasitic sensor nodes, making source tracing extremely difficult.
• The algorithm demonstrates superior performance in source-location privacy protection compared to traditional routing schemes.
• ARR achieves this with only a marginal increase in communication overhead and energy consumption.

Conclusions:

• ARR offers a robust solution for enhancing source-location privacy in WSNs against sophisticated threats.
• It provides a flexible and efficient method for routing that significantly improves security.
• ARR is more energy-efficient than cloud-based privacy protection schemes.