公开(公告)号：US20200304300A1

公开(公告)日：2020-09-24

申请号：US16614404

申请日：2018-04-13

Applicant: Korea Advanced Institute of Science and Technology

Inventor： June Koo Rhee ,  Il Hwan Park ,  Kyong Chun Lim ,  Jun Sang Oh ,  Yong Seen Kim

IPC: H04L9/08 ,  H04B10/70 ,  H04B10/63

Abstract: The present invention, which is used for continuous variable quantum key distribution (CVQKD) with asynchronous local oscillators, relates to a system for performing a phase compensation of a scheme of using LO phase estimation and feedback at a receiver (Bob) using a pilot signal from a transmitter (Alice) and a scheme of measuring quantum state data using an LO having a predetermined phase at the receiver (Bob) and estimating and feeding back an LO phase through multi-dimensional reconciliation (MDR).

公开(公告)号：US11212086B2

公开(公告)日：2021-12-28

申请号：US16614404

申请日：2018-04-13

Applicant: Korea Advanced Institute of Science and Technology

Inventor： June Koo Rhee ,  Ii Hwan Park ,  Kyong Chun Lim ,  Jun Sang Oh ,  Yong Seen Kim

IPC: H04B10/00 ,  H04L9/08 ,  H04B10/63 ,  H04B10/70 ,  H04J14/00

Abstract: The present invention, which is used for continuous variable quantum key distribution (CVQKD) with asynchronous local oscillators, relates to a system for performing a phase compensation of a scheme of using LO phase estimation and feedback at a receiver (Bob) using a pilot signal from a transmitter (Alice) and a scheme of measuring quantum state data using an LO having a predetermined phase at the receiver (Bob) and estimating and feeding back an LO phase through multi-dimensional reconciliation (MDR).

公开(公告)号：US11133928B2

公开(公告)日：2021-09-28

申请号：US16608954

申请日：2018-01-04

Applicant: Korea Advanced Institute of Science and Technology

Inventor： June Koo Rhee ,  Kyong Chun Lim ,  Chang Ho Suh

IPC: H04L9/08 ,  H04B10/70 ,  H04B10/90

Abstract: The present invention relates to a method and an apparatus for quantum key distribution according to a continuous-variable quantum key distribution protocol, which distributes the quantum key in a reverse post-processing manner and, after photon sub traction at a receiver (Bob), detects bit information from a received quantum state to calculate and share the quantum key, such that security can be further enhanced and a cryptographic key generation rate can be increased since the cryptographic key is not exposed to an attacker (Eve).