Classical Fully Homomorphic Encryption for Quantum Circuits: Difference between revisions

The example protocol [https://arxiv.org/abs/1708.02130 Mahadev (2017)] achieves the functionality of [[Secure Client- Server Delegated Quantum Computation]] by a method which involves fully [[Secure Client- Server Delegated Quantum Computation#Protocols#Classical Offline Communication-No Quantum Communication|classical offline]] and no [[Secure Client- Server Delegated Quantum Computation#Protocols#Classical Offline Communication-No Quantum Communication|quantum communication]]. It uses only classical [[Supplementary Information#Quantum Cryptography Techniques#Quantum Capable Homomorphic Encryption|Homomorphic Encryption]] (HE) scheme to evaluate quantum circuits for classical input/output. It allows a fully classical Client to hide her data such that Server can carry out any arbitrary quantum computation on the encrypted data without having any knowledge about Client’s inputs. It hides the output and input of the computation while Server is allowed to choose the [[Supplementary Information#A General Introduction to Quantum Information#Unitary Operation|unitary operation]] (any quantum gate) for required computation. Quantum offline communication would be required if Client’s input and output is quantum.</br></br>