Between LG Innotek headquarters and branch office, and Eulji University Hospital main campus and branch office
Construction of PQC-based dedicated lines, verification by the end of this month
Security enhanced by maintaining the configuration of hundreds of kilometers of dedicated line sections.


LG Uplus announced on the 1st that it has established a dedicated line based on quantum-resistant cryptography with LG Innotek and Eulji University Hospital and will conduct verification by the end of this month.

Post-Quantum Cryptography (PQC) is a technology that utilizes encryption algorithms that cannot be broken even by the computational power of quantum computers.

If quantum computers become commercialized, they will be able to crack codes within seconds that currently take the highest-spec supercomputers a million years to decrypt. Therefore, quantum computers must also encrypt information using PQC, which takes tens of thousands of years to decrypt, to prevent hacking threats.

The PQC-based dedicated lines will be constructed on a 640km dedicated line connecting LG Innotek's Pyeongtaek plant and Busan IDC, and a 207km dedicated line connecting Eulji University Hospital's main branch in Daejeon and its branch in Nowon.

LG Uplus explained regarding this implementation, “It is significant in that it allows us to enhance security across hundreds of kilometers of dedicated line sections—such as those connecting the company’s factories and branches, or hospitals’ main and sub-branches—by applying encryption modules without any configuration changes.”

By utilizing this, companies can stay safe from hacking when exchanging data with overseas branches as well as domestically. In addition, it is possible to ensure security in the communication channel between hospitals and individuals handling sensitive information, such as in non-face-to-face telemedicine.

Koo Sung-chul, Head of Wired Business at LG Uplus, stated, “PQC can provide security services through a software-based approach not only for wired network segments but also for various terminal areas such as wireless networks, smartphones, and IoT,” adding, “In the future, we will develop specialized application services for specific industries and expand their use cases.”

Meanwhile, LG Uplus is working to localize PQC using purely domestic technology in cooperation with Seoul National University and Crypto Lab. Last June, it applied PQC technology to optical transmission equipment for the first time in the world.