Published Paper Details:

With the widespread adoption of cloud computing, securing data and ensuring continuous authentication of devices accessing cloud services has become a critical concern. Traditional cryptographic methods, while effective, are vulnerable to quantum computing attacks that can compromise security. To address this challenge, we propose a novel device-to-device continuous authentication protocol for cloud services, leveraging the principles of quantum cryptography.Our proposed protocol utilizes quantum key distribution (QKD) to establish secure and authenticated communication channels between devices accessing cloud services. QKD leverages the principles of quantum mechanics, such as the Heisenberg uncertainty principle and quantum entanglement, to securely generate and distribute cryptographic keys, which are immune to attacks from quantum computers. The protocol continuously authenticates the devices by periodically exchanging quantum keys, verifying their authenticity and integrity, and updating the keys accordingly.Our protocol ensures secure and continuous authentication of devices accessing cloud services, protecting against various attacks including man-in-the-middle attacks, replay attacks, and eavesdropping attacks. It provides strong security guarantees, leveraging the unique properties of quantum mechanics to protect against attacks from both classical and quantum computers. Moreover, our protocol reduces the need for centralized authentication servers, reducing the risk of single point of failure and enhancing the scalability and efficiency of cloud services.We evaluate our proposed protocol through extensive simulations and performance analysis, demonstrating its effectiveness in ensuring secure and continuous authentication of devices accessing cloud services. Our findings highlight the potential of quantum cryptography as a promising solution for securing cloud computing environments and enabling secure device-to-device communication.