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).