"Quantum encryption is a well studied problem for both classical and quantum
information. However, little is known about quantum encryption schemes for classical information with an infinite key-space having direct applications in the contrasting fields of functional encryption and secure quantum network communication. 

In this talk, we will first give an introduction to quantum computing as relevant to understanding a quantum cipher. We will then present a novel secret-key quantum encryption scheme for a classical bit, which is quantum semantically secure and quantum entropically indistinguishable. We will conclude with an outline of our scheme’s applicability to functional encryption and secure/verified quantum network communication."