[1] [1] Mable P F, Wang Z, Deng Y, et al. Optical layer security in fiber-optic networks[J]. IEEE Transactions on Information Forensics and Security, 2011, 6(3): 725-736.

[2] [2] Kitayama K, Sasaki M, Araki S, et al. Security in photonic networks: Threats and security enhancement[J]. Journal of Lightwave Technology, 2011, 29(21): 3210-3222.

[3] [3] Scarani V, Bechmann P H, Cerf N J, et al. The security of practical quantum key distribution[J]. Review of Modern Physics, 2009, 81(3): 1301-1350.

[4] [4] Patel K A, Dynes J F, Lucamarini M, et al. Quantum key distribution for 10 Gb/s dense wavelength division multiplexing networks[J]. Applied Physics Letters, 2014, 104(5): 175-179.

[5] [5] Barbosa G A, Corndorf E, Kumar P, et al. Secure communication using mesoscopic coherent states[J]. Physics Review Letter, 2003, 90(22): 227901.

[6] [6] Kanter G S, Reilly D, Smith N. Practical physical-layer encryption: The marriage of optical noise with traditional cryptography[J]. IEEE Communication Magazine, 2009, 47(11): 74-81.

[7] [7] Futami F, Tanizawa K, Kato K. Y-00 quantum-noise randomized stream cipher using intensity modulation signals for physical layer security of optical communications[J]. Journal of Lightwave Technology, 2020, 38(10): 2774-2781.

[8] [8] Corndorf E, Barbosa G, Liang C, et al. High-speed data encryption over 25 km of fiber by two-mode coherent-state quantum cryptography[J]. Optics Letters, 2003, 28(21): 2040-2042.

[9] [9] Nakazawa M, Yoshida M, Hirooka T, et al. QAM quantum noise stream cipher transmission over 100 km with continuous variable quantum key distribution[J]. IEEE Journal of Quantum Electronics, 2017, 53(4): 1-16.

[10] [10] Jiao H, Pu T, Shi L, et al. A novel realization of quantum stream cipher with key-modulated local light[J]. Optical Fiber Technology, 2019, 53: 102007.

[11] [11] Nair R, Yuen H P, Corndorf E, et al. Quantum-noise randomized ciphers[J]. Physics Review Letter, 2006, 74(5): 052309.

[12] [12] Tan Y, Pu T, Zhou H, et al. Performance analysis of physical-layer security in ISK quantum-noise randomized cipher based on wiretap channel[J]. Optics Communications, 2020, 461: 125151.

[13] [13] Jiao H, Pu T, Zheng J, et al. Semi-quantum noise randomized data encryption based on an amplified spontaneous emission light source[J]. Optical Express, 2018, 26(9): 11587-11598.

[14] [14] Chen Y K, Pu T, Zheng J L, et al. Simulation verification and study on PSK quantum-noise randomized cipher system[J]. Acta Optica Sinica, 2020, 40(16): 1606001.