Classical homomorphic encryption for quantum circuits

QuICS Seminar

Speaker: 
Urmila Mahadev (Caltech)
Time: 
Wednesday, October 21, 2020 - 11:00am
Location: 
Virtual Via Zoom: https://umd.zoom.us/j/95201994676?pwd=dld3Smk4cGFUelFYMkJOZ3ZNM0x5dz09

We present the first leveled fully homomorphic encryption scheme for quantum circuits with classical keys. The scheme allows a classical client to blindly delegate a quantum computation to a quantum server: an honest server is able to run the computation while a malicious server is unable to learn any information about the computation. We show that it is possible to construct such a scheme directly from a quantum secure classical homomorphic encryption scheme with certain properties. Finally, we show that a classical homomorphic encryption scheme with the required properties can be constructed from the learning with errors problem.

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