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Secure key generation encryption scheme based on index parameter updates
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DOI：10.1364/OE.531035.png)
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In this paper, we propose a secure key generation encryption scheme based on index parameter updates. A mutual coupling index parameter database is established at the transmitter and receiver, and different index parameters correspond to different time-varying key. We convert the index parameter into a binary bit stream and put it at the end of the frame header. For the original data, we realize chaotic encryption through the 7-dimensional cellular neural network (7D-CNN) chaotic system after modulation to enhance the security of the data. To ensure that the index parameters do not make mistakes in the transmission process, we have dealt with the times of repetition. The proposed scheme adopts a flexible digital encryption mode, which can encrypt the message with lower delay and higher speed. The experiment successfully demonstrated the transmission of 110.1Gb/s encrypted 16QAM signal in 2 km 7-core optical fiber. We also compare the encrypted signal with the unencrypted signal. The proposed scheme only costs 0.6 dB of receiver sensitivity and brings a huge key space of 10(1,680).To our best knowledge, the key space reached the world leading level in the same period. The proposed scheme can interoperate with all kinds of optical communication systems currently used, and realize the optical communication transmission scheme with low cost and high security.
Keyword:
TRANSMISSION
NETWORKS
CHAOS
期刊
IF:
3.3
论文数:
6.1W
被引数:
14.3W
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