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arXiv:1607.03075 · Lecture notes in computer science

Efficient Simulation for Quantum Message Authentication

Anne Broadbent, Evelyn Wainewright

Published Jan 1, 2016• 30 citations
arXivHTMLPDF
DOI
10.1007/978-3-319-49175-2_4

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Efficient Simulation for Quantum Message Authentication

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A mix of physics, mathematics, and computer science, the study of quantum information seeks to understand and utilize the information that can be held in the state of a quantum system. Quantum cryptography is then the study of various cryptographic protocols on the information in a quantum system. One of the goals we may have is to verify the integrity of quantum data, a process called quantum message authentication. In this thesis, we consider two quantum message authentication schemes, the Clifford code and the trap code. While both of these codes have been previously proven secure, they have not been proven secure in the simulator model, with an efficient simulation. We offer a new class of simulator that is efficient, so long as the adversary is efficient, and show that both of these codes can be proven secure using the efficient simulator. The efficiency of the simulator is typically a crucial requirement for a composable notion of security. The main results of this thesis have been accepted to appear in the Proceedings of the 9th International Conference on Information Theoretic Security (ICITS 2016).
Quantum secure direct communication (QSDC) enables secure message transmission without needing pre-shared keys. To enhance the practical reliability of QSDC systems, measurement-device-independent (MDI) protocols have emerged, providing robust security in real-world applications. Despite the advantages of MDI protocols, their implementation has not yet accomplished communication using only single photons which are advantageous due to their ease of preparation and transmission. In this letter, by employing single photons, we propose a novel MDI-QSDC protocol with identity authentication. This protocol achieves mutual identity authentication between the communicating parties, Alice and Bob, enabling authenticated Alice to securely transmit her secret message directly to authenticated Bob. Theoretical analysis demonstrates the protocol is resilient to identity and message security threats. Simulations with practical experimental parameters and efficiency analysis highlight its potential in quantum communication.
This paper proposes a scheme for secure authentication of classical messages with single photons and a hashed function. The security analysis of this scheme is also given, which shows that anyone cannot forge valid message authentication codes (MACs). In addition, the lengths of the authentication key and the MACs are invariable and shorter, in comparison with those presented authentication schemes. Moreover, quantum data storage and entanglement are not required in this scheme. Therefore, this scheme is more efficient and economical.