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Secure PUF-Based Authentication Systems.

Naing Win Tun¹, Masahiro Mambo²

¹Division of Electrical Engineering and Computer Science, Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa 920-1192, Ishikawa, Japan.

Sensors (Basel, Switzerland)

|August 29, 2024

Summary

This summary is machine-generated.

This study introduces a novel authentication protocol for the Internet of Things (IoT) using Physically Unclonable Functions (PUFs) and advanced encryption. The new method enhances security against attacks while reducing computational load on IoT devices.

Keywords:

Internet of Things Paillier homomorphic encryption challenge–response pair (CRPs)physically unclonable function plaintext equality test

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Area of Science:

Computer Science
Cybersecurity
Cryptography

Background:

Internet of Things (IoT) security is challenged by device authentication needs.
Traditional Physically Unclonable Function (PUF)-based authentication struggles with IoT constraints and data transmission security.
Existing solutions like Identity-Based Encryption with PUFs offer enhanced security but have limitations in protecting transmitted data.

Purpose of the Study:

To propose a new PUF-based authentication protocol for IoT devices.
To enhance security by leveraging Paillier homomorphic encryption or plaintext equality testing.
To reduce computational load on IoT devices while ensuring data privacy during transmission.

Main Methods:

Developed a protocol encrypting both challenge-response pairs (CRPs) using Paillier homomorphic encryption or ElGamal encryption for plaintext equality testing.
Enabled verifier to authenticate devices without decrypting CRPs, preserving data confidentiality.
Analyzed security against various attacks and evaluated computational and communication overhead.

Main Results:

The proposed protocol encrypts sensitive data, preventing deciphering by adversaries during transmission.
Paillier scheme and plaintext equality testing allow verification without CRP decryption, enhancing privacy and reducing computational burden.
Security analysis confirmed resistance against CRP disclosure, machine learning, and impersonation attacks.
Paillier scheme achieved approximately 99% reduction in computational and communication time, while plaintext equality test achieved approximately 94% reduction.

Conclusions:

The novel protocol effectively enhances IoT device authentication security and privacy.
The use of Paillier homomorphic encryption or plaintext equality testing significantly reduces computational and communication overhead for IoT devices.
This approach offers a robust solution against common IoT security threats, improving overall system resilience.