Security enhancement of free-space quantum key distribution system

Satellites have become a crucial part of everyday life. We use satellites for watching television, navigation, weather
predication, national defense, and everything in between. Therefore, the safety and security of our satellites is
very important.
However, there are two problems that put satellites at risk of cyberattack:
1. As computers become more advanced, old cryptographic protocols become obsolete.
2. Encryption keys are lost or compromised.
QEYnet is working to address both issues and secure satellite communications using quantum key distribution
(QKD). QKD uses the properties of quantum mechanics to ensure secure communication, now and into the future.
Satellite QKD requires two main components: a quantum transmitter on the ground, and a quantum receiver on
the satellite. In this research project, we test the complete end-to-end QKD system for security vulnerabilities and
ensure both components are safe from cyberattack.

Faculty Supervisor:

Li Qian

Student:

Partner:

QEYnet Inc.

Discipline:

Computer science

Sector:

Professional, scientific and technical services

University:

University of Toronto

Program: