Discrepancies between theoretical models and real-world hardware are targeted, hence it is subjected to attacks.
Basically, QKD Attacks can be classified under these 3 categories:
🦹 Source-based Attacks
🦹 Detector-based Attacks
🦹 Protocol & Implementation Flaws
🚩 Source-based Attacks
💉 Laser Injection Attack
≈ Source Flaw / Inaccurate State Modulation
🗡 Phase Remapping Attack
🔪 Faked-state Attack
🐎 Trojan-Horse Attack
🚩 Detector-based Attacks
🔨 Side Channel Attack
🚩 Protocol & Implementation Flaws
✂ Photon Number Splitting Attack (PNS)
🦹 Coherent Attack
🦹 XSL (eXtended Sparse Linearization) Attack
The algebraic simplicity of the current AES is endorsed by QKD
Other issues:
👎 Nonorthogonal states
👎 Overall effective distance
👎 QKD requires a pre-existing, classically authenticated channel for initial key exchange, which undermines its independence from conventional cryptographic methods
👎 QKD is not a substitute for Quantum-proof Cryptography
Quantum Cryptography
Quantum Proof Cryptography
Quantum Cryptography QKD Flaws
Quantum Cryptography Invention
Quantum Proof Cryptographic Generator
Quantum Proof Cryptographic Strength Checker