A routing path construction method for key dissemination messages in sensor networks

Area of Science:

• Computer Science
• Network Security
• Wireless Sensor Networks

Background:

• Authentication is crucial for detecting forged messages in sensor networks.
• Dynamic key distribution schemes rely on cluster heads (CHs) to disseminate authentication keys.
• The efficiency of key distribution is limited by the forwarding path of messages.

Purpose of the Study:

• To propose a novel routing method for key dissemination messages.
• To increase the number of nodes that successfully obtain authentication keys within a cluster.
• To enhance the security and energy efficiency of wireless sensor networks.

Main Methods:

• A new routing method is proposed for key dissemination messages.
• Nodes select next-hop nodes based on secret key indexes, distance to the sink, and neighbor energy consumption.
• Comparison with Geographic and Energy-Aware Routing (GEAR) protocol.

Main Results:

• The proposed method increases the distribution of authentication keys by 50-70% compared to GEAR.
• Enables earlier detection of false reports through effective key distribution.
• Consumes less energy than GEAR when the false traffic ratio (FTR) is 10% or higher.

Conclusions:

• The proposed routing method significantly improves authentication key distribution in sensor networks.
• Enhanced key distribution leads to improved security by enabling earlier detection of forged messages.
• The method offers better energy efficiency under specific network conditions compared to existing protocols.