Quantum Key Distribution (QKD) is emerging as an important area to ensure secure communication between two parties using a cryptographic protocol involving components of quantum mechanics. It enables two parties to produce a shared random secret key known only to them, which can then be used to encrypt and decrypt messages to ensure full proof security in data transmission. Unlike traditional cryptographic techniques (where security is based on unproven mathematical assumptions), the security of quantum cryptography is based on the laws of physics. The security of quantum key distribution depends on the fundamental principles of nature on which infinite computational power, new attack algorithms and the arrival of quantum computers will not matter. Information is encoded in quantum states or Q-bits by quantum communication. Q-bits cannot be cloned or measured without including detectable anomalies. Thus, an important feature of the quantum key distribution is that two communicating users can find out whether a third party has tried to gain knowledge of the key, and in that case, the key distribution can be aborted. The feature of QKD is that any intervention or tampering in quantum channel will get detected and leads to destruction of key. QKD solution consists of “Alice” (QKD Transmitter) and “BOB” (QKD Receiver) nodes which are connected to each other through a Quantum Channel and Classical Channel, both implemented using Single Mode Optical Fibers.
• Any intervention or tempering in quantum channel will get detected and leads to destruction of the key at both Alice and Bob Nodes. • Supports DPS (Differential Phase Shift) and COW (Coherent One Way) protocols. • Hardware-based (FPGA) key processing for high key distribution rate • True Random Number Generator (TRNG) in both Alice & Bob nodes • Performance monitoring and Alarm generation for errors • Provide Variable Key Length on request • RESTful API for Key distribution • Key exchange through Ethernet & USB interfaces • Supports > 100 Km Single Mode Fiber (SMF) for the Quantum Channel • Support Local Management Interface (LMI) • Compact & Standard 19” Rack mountable • Graphical User Interface (GUI) to control and operate the CDOT-QKD solution
1. Secure Key Rate : >2Kbps for DPS PROTOCOL, >1Kbps for COW PROTOCOL 2. QBER : <5% 3. Key transfer Interface : USB/Ethernet 4. Quantum Wavelength : C-Band @ITU-T DWDM grid 5. Quantum Channel Loss (Max) : 16dB for DPS PROTOCOL, 18 dB for COW PROTOCOL 6. Operating Temperature : 10 to 30 °C 7. Detector Type : Single Photon Avalanche Detector 8. Power Supply : 220VAC@50Hz 9. Maximum Power Consumption : 250W (ALICE) 250W (BOB) 10. Mechanical Dimension : 19inch Rack mountable