Secure Authentic Digital Signature Scheme Using Quantum Fingerprinting

S. Prince Chelladurai, E. Bharath, C. SeIvalakshmi +3 more

Xiao-jun, Wen, Yun Liu

An authentic digital signature scheme based on the correlation of Greenberger-Horne-Zeilinger (GHZ) states was presented. In this scheme, by performing a local unitary operation on the third particles of each GHZ triplet, Alice can encode message M and get its signature S. Bob performs CNOT operation on the combined GHZ triplets can recovery the message M and directly authenticates Alice's signature S. Our scheme was designed to use quantum secret key to guaranteed unconditional security, as well as use quantum fingerprinting to avoid trick attacks and reduce communication complexity.

El Sharnouby, Yassine Mohamed Ahmed

This paper discusses quantum theories, protocols that are currently being readied for practical use and unproven concepts that might breakthrough at some point in the future. It will discuss Quantum Key Distribution and several of its protocols and applications, authentication methods and protocols, and unconditional security. Moreover, it takes and in-depth look at key recycling, quantum digital signatures (QDS), quantum fingerprinting – which is basically the quantum equivalent of a hashing process, and finally, entity authentication and whether it is achievable via entanglement.

Pardeep Singh Tiwana, Soumen Sardar, Gagandeep Kaur +1 more

M. Azhagiri, P. Sheela Gowr, Mary Joseph +3 more

Laxmi Kumari, Tarun Kumar Mahato

Digital signature schemes play an important role in the security of communication systems, ensuring authentication, integrity, and non-repudiation of messages. Classical digital signature schemes are widely used in communication systems but are not secure against quantum attacks, thereby necessitating the use of post-quantum cryptographic techniques. Recently, lattice-based digital signatures were proposed as efficient and quantum-resistant digital signatures. However, the lattice-based digital signatures are not effective in detecting eavesdropping or interception of messages during transmission. Quantum authentication techniques, on the other hand, are effective in detecting eavesdropping or interception of messages during transmission by utilizing the measurement disturbance principle of quantum mechanics. In this paper, we propose a hybrid quantum-classical digital signature scheme that combines the post-quantum security of lattice-based digital signatures with the capability of detecting eavesdropping or interception of messages during transmission by utilizing the quantum authentication techniques based on the entanglement principle of quantum mechanics. We discuss the system model, protocol, security, and performance evaluation of the proposed scheme in terms of computational and communication complexities. The proposed scheme is effective in the context of future communication systems that require security guarantees, such as quantum communication networks, critical infrastructures, and blockchain-based authentication systems.