This study points out that a malicious gateway in Hong et al.'s multi-user quantum key distribution protocol [Optics Communication 283 (2010) 2644] may be able to reveal the secret key of the protocol without being detected. An improvement is suggested to avoid the weakness.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering