I. Requirements Analysis

The rapid advancement of quantum computing poses a serious threat to existing cryptographic technologies. Guided by the strategic requirements of the global energy internet, the power industry adheres to the principles of "security zoning, dedicated networks, horizontal isolation, and vertical authentication." It has issued the "Notice on Matters Decided for Research and Application of Quantum Communication Technology," committing to explore quantum communication technologies to achieve technological upgrades and ensure network information security.

A quantum random number generator is a core component widely used in fields such as information security and random sampling. In recent years, with the advancement of quantum cryptography, quantum random number generators have emerged as essential devices for quantum secure communication, serving as true random number sources.

II. Working Principle

The quantum random number generator has passed testing by the Commercial Cryptography Testing Center of the Cryptography Administration Bureau and obtained a corresponding report. Unlike pseudo-random number generators and traditional noise-source random number generators, quantum random number generators produce random numbers based on the intrinsic randomness of microscopic particle states (such as quantum superposition and measurement collapse) as described by quantum mechanics. The generated randomness is rigorously proven through physical entropy theory and meets the randomness testing standards of both NIST and the National Cryptography Administration. They generate truly unpredictable and irreproducible random numbers, fundamentally distinct from classical pseudorandom numbers.

III. Features and Functions

1. The randomness of random numbers is guaranteed by quantum mechanical theory;

2. Random number generation rate can exceed 2 Gbps;

3. Features a universal high-speed PCIe interface design for plug-and-play operation and strong compatibility;

4. Randomness meets the testing requirements of GB/T 32915-2016, GM/T 0005-2021, and NIST SP 800-22.

IV. Typical Applications

1. Security of the Power Dispatch Command System

① Generate "one-time-one-key" truly random quantum keys for transmission of dispatch instructions, resistant to quantum computing attacks;

② Power Grid: Establish quantum-secure tunnels across the five-tier dispatch system (national-grid-provincial-regional-county), reducing error rates from the conventional 1e-6 to 1e-18 to prevent command hijacking and data tampering.

③ Bidirectional Authentication Between Dispatch Centers: Communication parties generate challenge codes via QRNG and verify identities using digital certificates to prevent unauthorized devices from accessing the network.

2. Intelligent Operation and Maintenance Security for Substations

① Generate random session keys for IEC 61850 protocol communication to prevent tampering with smart substation control commands;

② Obtain quantum-random-number-encrypted temporary certificates prior to drone/robot inspections to ensure secure transmission of image and equipment data.

3. Security Upgrade for Distribution Network Automation

① Generate dynamic device IDs and session keys for distribution terminals such as FTUs, DTUs, and TTUs, establishing secure channels via the 5G public network, reducing construction costs by 70%;

② Quantum random numbers provide device identification and dynamic authentication for distributed FA, preventing "pseudo-switch" attacks.

4. Grid Integration Safety and Optimization for New Energy Sources

① Innovative two-stage quantum encryption with aggregation and access: First, dispersed renewable energy data is aggregated via wireless quantum random number encryption, then transmitted to the dispatch system through fiber-optic quantum encryption.