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Lecture notes in networks and systems

Implementation of Quantum Key Distribution with Elliptic Curve Cryptography

H. P. Asha, Issac Diana Jeba Jingle

Published Jan 1, 2026• 0 citations
Publisher
DOI
10.1007/978-981-95-3163-9_26

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Abstract Generating a secure key and securely communicating it are crucial aspects for ensuring information security during encryption and decryption processes. Quantum Key Distribution (QKD) is a promising technique for enabling secure communication in Industrial Internet of Things (IIoT) applications. This paper presents an enhanced BB84 protocol integrated with Elliptic Curve Cryptography (ECC) that improves efficiency, security, and practical implementation. Our enhanced BB84 protocol employs a basis reconciliation mechanism and introduces a depolarizing channel model to simulate realistic noise conditions and eavesdropping detections. The system effectively identifies potential eavesdroppers based on Quantum Bit Error Rate (QBER) thresholds, thereby ensuring a secure key exchange process. Unlike traditional ECC implementations, our approach dynamically extracts prime numbers from a sifted key to generate elliptic curve parameters. The extracted key is used for AES encryption, providing an additional security layer for data confidentiality. The performance evaluation demonstrates efficient key generation and computational time, making this approach practical for IIoT environments. The experimental results indicate successful key generation and privacy amplification with a final key derived from the matched measurement bases. Elliptic curve generation successfully computes valid points supporting secure cryptographic operations. The estimated QBER ranged from 0.0 to 0.25, ensuring a secure key exchange. The AES encryption and decryption processes validate the usability of the generated key in real-world applications, confirming the robustness of our integrated QKD-ECC framework. The average key generation time ranged from 0.0000297 s, while the computational time was 0.0000714 s.

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Based on the quantum key distribution protocol of BB84 and elliptic curve cryptography,a new digital signature scheme was proposed.This project used the quantum key as conversation key to make the signature process be highly effective and simple.The certifiable security of this conversation key in the key distribution process combined with the elliptic curve encryption system has provided the dual safekeeping of security to the new scheme and simultaneously achieved mutually authenticated effect.
Wireless sensor networks (WSNs) are quiet dynamic technology made up of discrete multi-function sensor nodes that interconnect wireless for short distances. WSNs have distinct traits as well as limitations that impede the development of efficient attack detection and prevention methods. Security in WSN is a more difficult task because of the processing limits of sensor nodes as well as the nature of wireless communications. The widespread WSNs usage has given development to several forms of threats. To guard against threats, appropriate security measures must be implemented. Cryptography, specifically encryption, plays a pivotal role in protecting data from unauthorized access. However, not all encryption methods are equally effective, as some exhibit vulnerabilities. Elliptic Curve Cryptography (ECC) is the most efficient option because of its reduced key size. Comprehensive safety despite lower key sizes leads to area as well as power efficient crypto systems. With recent technological advancements, traditional encryption no longer appears to be a safe solution for security and privacy of data. Quantum cryptography uses quantum physics processes to provide safe data transmission among sender and recipient. However, quantum cryptography comprises a revolution over network security field. Therefore, this research focuses on Quantum Key Distribution (QKD) with ECC for effective authentication, key management and energy conservation. Thus, the proposed QKD-ECC method is implemented and evaluated with traditional ECC and other cryptography method for better WSN security and privacy of data transmission.
Abstract Generating a secure key and securely communicating it are crucial aspects for ensuring information security during encryption and decryption processes. Quantum Key Distribution (QKD) is a promising technique for enabling secure communication in Industrial Internet of Things (IIoT) applications. This paper presents an enhanced BB84 protocol integrated with Elliptic Curve Cryptography (ECC) that improves efficiency, security, and practical implementation. Our enhanced BB84 protocol employs a basis reconciliation mechanism and introduces a depolarizing channel model to simulate realistic noise conditions and eavesdropping detections. The system effectively identifies potential eavesdroppers based on Quantum Bit Error Rate (QBER) thresholds, thereby ensuring a secure key exchange process. Unlike traditional ECC implementations, our approach dynamically extracts prime numbers from a sifted key to generate elliptic curve parameters. The extracted key is used for AES encryption, providing an additional security layer for data confidentiality. The performance evaluation demonstrates efficient key generation and computational time, making this approach practical for IIoT environments. The experimental results indicate successful key generation and privacy amplification with a final key derived from the matched measurement bases. Elliptic curve generation successfully computes valid points supporting secure cryptographic operations. The estimated QBER ranged from 0.0 to 0.25, ensuring a secure key exchange. The AES encryption and decryption processes validate the usability of the generated key in real-world applications, confirming the robustness of our integrated QKD-ECC framework. The average key generation time ranged from 0.0000297 s, while the computational time was 0.0000714 s.