Yukai Chen, Jilin Zheng, Haisong Jiao, Tao Pu, Yang Cao. Analysis on Security of Quadrature Phase Shift Keying Quantum-Noise Randomized Cipher System[J]. Laser & Optoelectronics Progress, 2020, 57(17): 170609
- Laser & Optoelectronics Progress
- Vol. 57, Issue 17, 170609 (2020)
Fig. 1. Model of QPSK-QNRC system
Fig. 2. Constellation diagram of encryption code. (a) PSK-QNRC; (b) QPSK-QNRC
Fig. 3. Variation curves of the secrecy capacity with mechanism M. (a) CSu0; (b) CSx0
Fig. 4. Variation curves of the secrecy capacity with internal optical amplifier gain. (a) CSu0; (b) CSx0
Fig. 5. Variation curves of the secrecy capacity with mesoscopic coherent state power. (a) CSu0; (b) CSx0
Fig. 6. Maximum achievable safety rates of the system in different situations. (a) QPSK-QNRC, M=32; (b) PSK-QNRC, M=32; (c) QPSK-QNRC, M=64; (d) PSK-QNRC, M=64
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