Measurement-Device-Independent Quantum Key Distribution System
Quantum key distribution (QKD) uses fundamental quantum-mechanical principles to establish information-theoretically secure shared keys between users. Combined with one-time-pad encryption, it enables unconditionally secure confidential communication. This system uses measurement-device-independent quantum key distribution (MDI-QKD), theoretically providing the highest level of information-theoretic security (ITS). In practice, it is inherently immune to all attacks targeting the detection side. It also includes defenses against major known source-side threats, including photon-number-splitting, Trojan-horse, seed-light and bright-light attacks. The system supports highly secure long-distance quantum key distribution.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Operating protocol | Four-Intensity MDI-QKD Protocol |
| Coding Yield [200km fiber distance; 40dB link loss; key-rate calculation uses a single-photon detector with dark count 100Hz, efficiency 80%, and peak count rate 10MHz; @200km fiber distance (40dB link loss)] | ≥0.1kbps @200km fiber distance (40dB link loss) |
| Signal Operating wavelength | 1550.12nm |
| System Operating frequency | ≥1.25GHz |
| Encoding/Decoding Scheme | Polarization Decoding |
| Protocol Compatible with | System Upgrade Supports MP-QKD |
| Tunable Signal-Light Parameters | Power , Pulse Width , Wavelength etc. |
| Maximum Safe Code-Creation Distance | 258km |
| Practical security | Resists all detector-side attacks and source-side attacks including multiple-laser wavelength attacks, PNS attacks and Trojan Horse attacks. |
| QKD Network Compatibility | Supports Star and Chain Networks among Multiple Equipment Sets |
Applications
Key Features
Datasheet
Supplier Information
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