TY - JOUR
T1 - Continuous-variable quantum computing on encrypted data
AU - Marshall, Kevin
AU - Jacobsen, Christian Scheffmann
AU - Schäfermeier, Clemens
AU - Gehring, Tobias
AU - Weedbrook, Christian
AU - Andersen, Ulrik Lund
PY - 2016
Y1 - 2016
N2 - The ability to perform computations on encrypted data is a powerful tool for protecting a client's privacy, especially in today's era of cloud and distributed computing. In terms of privacy, the best solutions that classical techniques can achieve are unfortunately not unconditionally secure in the sense that they are dependent on a hacker's computational power. Here we theoretically investigate, and experimentally demonstrate with Gaussian displacement and squeezing operations, a quantum solution that achieves the security of a user's privacy using the practical technology of continuous variables. We demonstrate losses of up to 10 km both ways between the client and the server and show that security can still be achieved. Our approach offers a number of practical benefits (from a quantum perspective) that could one day allow the potential widespread adoption of this quantum technology in future cloud-based computing networks.
AB - The ability to perform computations on encrypted data is a powerful tool for protecting a client's privacy, especially in today's era of cloud and distributed computing. In terms of privacy, the best solutions that classical techniques can achieve are unfortunately not unconditionally secure in the sense that they are dependent on a hacker's computational power. Here we theoretically investigate, and experimentally demonstrate with Gaussian displacement and squeezing operations, a quantum solution that achieves the security of a user's privacy using the practical technology of continuous variables. We demonstrate losses of up to 10 km both ways between the client and the server and show that security can still be achieved. Our approach offers a number of practical benefits (from a quantum perspective) that could one day allow the potential widespread adoption of this quantum technology in future cloud-based computing networks.
U2 - 10.1038/ncomms13795
DO - 10.1038/ncomms13795
M3 - Journal article
C2 - 27966528
SN - 2041-1723
VL - 7
JO - Nature Communications
JF - Nature Communications
M1 - 13795
ER -