KT Conducts Quantum Cryptography Communication Quality Evaluation on Seoul-Busan Route

KT researchers are evaluating service quality in a hybrid quantum cryptography network.

[Asia Economy Reporter Lim Hye-sun] KT announced on the 28th that it will conduct a quality evaluation of the quantum cryptography communication facilities established on the Seoul-Busan route for three weeks until the 15th of next month.

KT will utilize its independently developed ‘Quantum Cryptography Service Quality Parameter (QoS Parameter)’ for this quality evaluation. The ‘Quantum Cryptography Service Quality Parameter’ is a quality evaluation standard for quantum cryptography communication that was internationally standardized for the first time in the world by the International Telecommunication Union (ITU) in February.

The Seoul-Busan section undergoing the quality evaluation this time is approximately 490 km long, making it the longest quantum cryptography communication facility established within the territory of the Republic of Korea. It is at a level where related services can be provided across most of the Korean Peninsula.

In particular, the section where the quality evaluation is conducted this time implements hybrid quantum cryptography communication based on domestic equipment from Kowiver, Woorinet, Arian, etc., which received technology transfer from KT, as well as technology from Toshiba Digital Solutions. KT is the first in the world to implement quantum cryptography communication over a long-distance section using equipment from different manufacturers and to evaluate the quality of quantum cryptography communication services.

KT plans to operate an open QKDaaS (QKD as a Service) testbed with Toshiba Digital Solutions from the second quarter of this year to expand the domestic and international quantum industry ecosystem. This testbed will operate on the Seoul-Daejeon route and will be open for two years to support quantum cryptography communication technology evaluation and next-generation application service development. Through this, technological cooperation between domestic and international quantum cryptography companies will be possible, and better testing environments will be provided to domestic equipment manufacturers, which is expected to enhance the competitiveness of quantum cryptography communication in the Republic of Korea.

QKDaaS is a type of service where a provider builds quantum cryptography communication facilities and supplies only quantum cryptographic keys to customers who need quantum cryptography communication services. It is a kind of subscription-based quantum cryptography communication service.

Additionally, KT plans to strengthen comprehensive cooperation with Toshiba Digital Solutions, the world’s number one company in holding quantum cryptography communication patents, focusing on technology and standardization in the quantum cryptography communication field.

This content was produced with the assistance of AI translation services.