Secure direct communication with a quantum one-time pad

By Fuguo Deng, G. Long. 2004

1,068 citations recorded by the source corpus.

Quantum secure direct communication is the direct communication of secret messages without first producing a shared secret key. It may be used in some urgent circumstances. Here we propose a quantum secure direct communication protocol using single photons. The protocol uses batches of single photons prepared randomly in one of four different states. These single photons serve as a one-time pad which is used directly to encode the secret messages in one communication process. We also show that it is unconditionally secure. The protocol is feasible with present-day technique.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/7fbade4226e0cb963814f45d71ec9bffd15f57d4

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Artificial Intelligence

1. Stefano Pirandola
2. Lan Zhou
3. Yu‐Bo Sheng
4. Marco Tomamichel
5. Mario Berta
6. G. Guo
7. Baosen Shi
8. Dong Ding

In Atomic and Molecular Physics, and Optics

1. Stefano Pirandola
2. Lan Zhou
3. Yu‐Bo Sheng
4. G. Guo
5. Baosen Shi
6. Dong Ding
7. Mingyong Jing
8. Liantuan Xiao

Citations in the corpus

• Experimental quantum secure direct communication with single photons (2015, positive): “The DL04 protocol is the first QSDC protocol based on single photon, 23 which is easier to implement than those with entanglement sources.”
• Quantum Secure Direct Communication with Quantum Memory. (2016, methodology): “Furthermore, a QSDC protocol based on single photons was also proposed [15], and it is easier to achieve now because of the rapid advance in single-photon devices [18].”
• One-step quantum secure direct communication. (2021, background): “During recent few years, QSDC has achieved great progress in both theory and experiments [23–40].”
• Advances in quantum cryptography (2019, positive): “Quantum cryptographic protocols making a bidirectional use of quantum channels started with the introduction of deterministic protocols for the purpose of secure direct communication [118–120] and later evolved into more mature schemes of two-way QKD [121, 122].”