KT Partners with Toshiba Digital Solutions for Hybrid Quantum Cryptography Communication Quality Assessment

[Courtesy of KT]

SEOUL — In cooperation with its Japanese partners, KT, a major telecommunications company in South Korea, will conduct hybrid quantum cryptography communication quality assessment using equipment from different manufacturers over a network of long-distance test between Seoul and the southern port city. from Busan.

Hybrid quantum cryptography communication was implemented between Seoul and Busan, using domestic equipment and technology from Toshiba Digital Solutions, a Japanese company that provides systems integration services and software solutions. It is the first time in the world to implement hybrid quantum cryptography communication in long-distance sections.

In the era of 5G, the importance of cybersecurity in mobile communications will increase exponentially. Quantum cryptography has established itself as an essential solution for safeguarding critical information because it is impossible to copy data encoded in a quantum state. South Korean companies have tried to lead the standardization of quantum cryptographic communication technology.

“We will continue research, development and investment to implement the quantum internet, not just quantum cryptography communication,” KT Convergence Technology Lab head Kim Yi-han said in a statement. communicated on March 28. For the quality assessment that will last until April 15, KT will use its Quantum Cryptography Quality of Service Parameter, which was approved in February by the International Telecommunication Union (ITU), an international standards governing body. telecommunications technologies.

KT and Toshiba Digital Solutions would operate an open QKDaaS test for two years from the second quarter of 2022 to expand a quantum industry ecosystem at home and abroad. The testbed operates in a section between Seoul and Daejeon to support the evaluation of quantum cryptography communication technology and the development of next-generation application services.

Quantum key distribution (QKD) is a secure communication method that implements a cryptographic protocol involving components of quantum mechanics. QKD as a Service (QKDaaS) is a subscription-type service in which a commercial operator builds quantum cryptography communication facilities and only provides quantum cryptography keys to customers.

KT said the testbed will enable technology cooperation between domestic and foreign quantum cryptography communication enterprises, provide a better testing environment for equipment manufacturers, and increase the competitiveness of domestic technologies.

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