Removable Quantum Random Number Generator for Network Entropy
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Solution Overview
Problem
Current methods for providing entropy to network devices are resource-intensive, consuming computing and networking resources, and increase traffic load, maintenance, and decrease network bandwidth due to the installation of QRNGs on PCBs or PCIe boards, which are not suitable for in-field insertion in security platforms.
Innovation Solution
A removable quantum random number generator (QRNG) is integrated into network devices to generate entropy network traffic flows, interfacing with packet forwarding and routing components to produce random payloads in IP/MPLS packets, which are then forwarded to destination addresses, conserving resources and reducing maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If QRNGs are installed on PCBs or PCIe boards to provide entropy to network devices, then entropy generation capability is improved, but device complexity and ease of operation deteriorate due to installation and maintenance requirements
Solution Approach 1:
The patent extracts the QRNG functionality from fixed PCB/PCIe board installations and implements it as a removable module that can be easily inserted and removed from the network device. This allows the entropy generation capability to be added without permanent installation complexity, enabling field insertion and removal as needed.
Solution Approach 2:
The patent makes the QRNG installation dynamic by using a removable module design rather than a fixed installation. The module can be dynamically inserted or removed from the network device without requiring system shutdown or complex installation procedures, adapting to different operational needs.
2Reliability
If QRNGs are installed on PCBs or PCIe boards to generate entropy traffic flows, then randomness quality is improved, but traffic load and loss of energy worsen due to increased network device processing requirements
Solution Approach 1:
The patent segments the entropy generation function into a separate removable QRNG module that operates independently from the main network device processing. This segmentation allows the QRNG to generate entropy traffic flows without burdening the main device resources, as the module handles its own packet generation and output directly.
3Reliability
If QRNGs are installed on PCBs or PCIe boards to provide cryptographic entropy, then security strength is improved, but device complexity and maintenance needs worsen
Solution Approach 1:
The patent extracts the QRNG as a standalone removable module, separating the cryptographic entropy generation function from the main device complexity. This extraction allows high-quality cryptographic entropy to be provided without permanently increasing device complexity, as the module can be removed or replaced without affecting the core device architecture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables efficient generation and distribution of entropy, conserving computing and networking resources, reducing traffic load, and maintaining network bandwidth while allowing for straightforward consumption of entropy by routing components, thus enhancing network security and performance.
Implementation Method 1
A removable quantum random number generator (QRNG) may be utilized to generate entropy network traffic flows
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A removable quantum random number generator (QRNG) of a network device may generate one or more packets with random payloads, and may provide the one or more packets with the random payloads to a component of the network device. The component of the network device may cause the one or more packets with the random payloads to be forwarded to a destination address.