Abstract
AbstractSo far, unconditional security in key distribution processes has been confined to quantum key distribution (QKD) protocols based on the no-cloning theorem of nonorthogonal bases. Recently, a completely different approach, the unconditionally secured classical key distribution (USCKD), has been proposed for unconditional security in the purely classical regime. Unlike QKD, both classical channels and orthogonal bases are key ingredients in USCKD, where unconditional security is provided by deterministic randomness via path superposition-based reversible unitary transformations in a coupled Mach–Zehnder interferometer. Here, the first experimental demonstration of the USCKD protocol is presented.
Funder
Gwangju Institute of Science and Technology
Publisher
Springer Science and Business Media LLC
Reference37 articles.
1. Bennett, C. H. & Brassard, G. Quantum cryptography: public key distribution and coin tossing. In Proceedings of IEEE International Conference on Computers, Systems and Signal Processing, volume 1, pp. 175-179, New York. (1984)
2. ibid, Theoretical Computer Sci. 560, 7-11 (2014).
3. Ekert, A. K. Quantum cryptography based on Bell’s theorem. Phys. Rev. Lett. 67, 661–663 (1991).
4. Gisin, N., Ribordy, G., Tittle, W. & Zbinden, H. Quantum cryptography. Rev. Mod. Phys. 74, 145–195 (2002).
5. Lydersen, L. et al. Hacking commercial quantum cryptography systems by tailored bright illumination. Nat. Photon. 4, 686–689 (2010).
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献