Quantum random number generation for 1.25 GHz quantum key distribution systems
arXiv:1504.07769 · doi:10.1109/JLT.2015.2416914
Abstract
Security proofs of quantum key distribution (QKD) systems usually assume that the users have access to source of perfect randomness. State-of-the-art QKD systems run at frequencies in the GHz range, requiring a sustained GHz rate of generation and acquisition of quantum random numbers. In this paper we demonstrate such a high speed random number generator. The entropy source is based on amplified spontaneous emission from an erbium-doped fibre, which is directly acquired using a standard small form-factor pluggable (SFP) module. The module connects to the Field Programmable Gate Array (FPGA) of a QKD system. A real-time randomness extractor is implemented in the FPGA and achieves a sustained rate of 1.25 Gbps of provably random bits.
6 pages, 8 figures
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- Generation of True Quantum Random Numbers with On-Demand Probability Distributions via Single-Photon Quantum Walks
- The m-least significant bits operation for quantum random number generation
- Man-in-the-Middle Attacks Targeting Quantum Cryptography
- Fully passive quantum random number generation with untrusted light
- Highly integrated broadband entropy source for quantum random number generators based on vacuum fluctuations
- Vacuum-based quantum random number generator using multi-mode coherent states