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Virtual IP-based Secure Gatekeeper System for Internet of Things
Younchan Jung1, Ronnel Agulto1
1School of Information, Communications, and Electronics Engineering, The Catholic University of Korea, Bucheon-si, Seoul 07345, Korea.
Sensors (Basel, Switzerland)
|December 30, 2020
Summary
This study introduces a gatekeeper system to enhance security and connectivity for Internet of Things (IoT) devices, particularly in self-driving car networks. The system ensures secure peer-to-peer communication by managing IP address visibility and enabling rapid data exchange.
Area of Science:
- Computer Science
- Networking
- Internet of Things (IoT)
Background:
- Network Address Translation (NAT) offers security for IoT devices but hinders peer-to-peer communication.
- Existing IPv6 solutions are too complex for resource-constrained IoT devices.
- Mobile IoT devices face challenges with direct peer-to-peer application operation due to IP address limitations.
Purpose of the Study:
- To propose a novel gatekeeper system for secure and efficient communication among IoT devices within a subnetwork.
- To enable seamless peer-to-peer connectivity for mobile IoT devices without exposing real IP addresses.
- To validate the gatekeeper system's effectiveness in a self-driving car platform, focusing on latency and security.
Main Methods:
- Implementing a gatekeeper that controls external access to local IoT device IP addresses.
- Utilizing a Registrar Server or Domain Name System (DNS) for virtual IP address publication and mapping.
- Ensuring all network traffic passes through the gatekeeper for address conversion and security checks.
- Applying the system to a self-driving car network for inter-device communication.
Main Results:
- The gatekeeper system effectively hides internal IoT device IP addresses, preventing external visibility and attacks.
- Address mapping information is managed both locally by the gatekeeper and globally via the registration server/DNS.
- The system facilitates secure and rapid communication between IoT cameras and autonomous vehicles.
- Latency analysis demonstrates the gatekeeper system achieves a 20 ms latency goal on 5G links.
Conclusions:
- The proposed gatekeeper system provides a viable solution for secure IoT device communication, overcoming NAT and IPv6 complexity limitations.
- The system enhances the security posture of IoT networks by abstracting real IP addresses.
- The gatekeeper architecture is suitable for demanding applications like autonomous vehicle networks, ensuring low latency and high security.
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