X - NASA Quantum Future Technologies Conference
X - NASA Quantum Future Technologies Conference
X - NASA Quantum Future Technologies Conference
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Solution: CV-‐QKD<br />
§� Provides unconditionally secure communications based on<br />
Continuous Variable <strong>Quantum</strong> Key Distribution (CV-‐QKD)<br />
ú� Key Generation: Uses quantum non-‐determinism to generate truly random<br />
cryptographic keys<br />
ú� Key Distribution: Imprints them onto the amplitude and phase quadratures of<br />
a coherent laser beam. Security of the keys relies upon the impossibility of<br />
cloning unknown quantum states perfectly and limits on the knowledge one<br />
can have about non-‐commuting observables set by the Heisenberg<br />
Uncertainty Principle<br />
ú� Key Distillation: Performs error reconciliation & privacy amplification to distill<br />
out the secret key material<br />
ú� Key Exploitation: Uses the secret keys to implement an unconditionally<br />
secure classical cryptosystem such as a one time pad<br />
§� Meets stated <strong>NASA</strong> requirement for “unconditional<br />
information security” in new <strong>NASA</strong> Technology Roadmap<br />
ú� Supersedes prior DARPA & IARPA quantum networks by achieving higher data<br />
rates & greater compatibility with fiber and free-‐space laser optical comm.
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