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Redundancy-Free Key Distribution Using Multiple Phase Offset for Secure Data Center
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DOI：10.1109/JLT.2023.3320037.png)
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摘要
En 中文
This article proposes a redundancy-free multiple phase-offset based key distribution (MPO-KD) scheme for solving the physical-layer session key agreement in optical data center interconnections (DCIs). High-dimensional chaotic encryption is a promising technology expected to provide better security for massive-scale data transmission in DCIs. Considering the huge key space introduced by hyper-chaos, the proposed scheme converts digital keys into the phase of quadrature amplitude modulation (QAM) symbols by actively introducing controllable offsets. The solution of offset factor space is modeled as a multi-objective optimization problem for improving the key distribution performance. The Pareto optimal set is obtained using the non-dominated sorting moth-flame optimization (NS-MFO) algorithm. The two-channel 140 Gb/s 16-QAM, 176 Gb/s 32-QAM and 210 Gb/s 64-QAM orthogonal frequency division multiplexing (OFDM) signal transmissions are successfully demonstrated. The results indicate that this scheme achieves error-free key distribution without degrading system performance, which supports an expandable large key space and has good compatibility with various encryption algorithms.
Keyword:
Encryption
Chaotic communication
Quadrature amplitude modulation
Optical fibers
Adaptive optics
Optical crosstalk
Fiber nonlinear optics
Chaotic encryption
data center interconnections
key distribution
multiple phase-offset
physical layer security
期刊
IF:
4.8
论文数:
1.7W
被引数:
3.8W
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