Lin Hsin Hsin Quantum Security Center




















Quantum Threats by
Layer and Component






Layer 1.5 -- Optical Layer (Optical Channel Layer)


                Components



                📍 PNoC (Photonic Network on Chip)
                📍 Optical fibers
                📍 waveguides
                📍 multiplexers


              Quantum Threats

              Photon Number Splitting (PNS) Attacks

              In PNoC or optical channels, an attacker can split single photons to eavesdrop on quantum key distribution (QKD) or other optical signals


              Trojan-Horse Attacks

              Injecting light into optical components to probe internal states or extract data


              Quantum Back-Reflection

              Exploiting reflections in optical components to gain information about the system’s internal workings.


              Denial-of-Service (DoS)


              Quantum noise or jamming can disrupt optical signal integrity, causing channel failures
              Layer 1     Layer 1.5     Layer 2     Layer 3     Layer 4 -7     Summary