Inside Quantum Technology

LG Uplus launches commercial service of quantum-resistant cryptography

(AjuDaily) Lim Chang-won reports on LG Uplus launch of South Korea’s first commercial service of quantum-resistant cryptography that can defend against hacking attacks on quantum computers. IQT-News summarizes the article here.
LG Uplus (LGU+), a mobile carrier in South Korea, said it would apply quantum-resistant cryptography technology to wired and wireless communication through technology advancement.
As different passwords are used for all IT-related hardware and software with many companies storing and processing numerous big data, a system to prevent the risk of hacking is important. LGU+ said its quantum-resistant cryptography technology will provide an optimal network for customers who require security services that can safely protect data from external threats.
LGU+ has commercialized post-quantum cryptography (PQC) technology, which refers to cryptographic algorithms. PQC does not require separate network infrastructure to distribute cryptographic keys because it can be applied flexibility to different sections of wired and wireless networks that require encryption.
A dedicated PQC line provides an environment that cannot be hacked through a reconfigurable optical add-drop multiplexer (ROADM). It is a method of encrypting and decrypting data with a quantum-resistant encryption key when a customer transmits and receives data through a dedicated line.
“As a leader in quantum-resistant cryptography technology, LG Uplus will create a technological environment and an industrial ecosystem, which are needed to foster the quantum information and communication industry as a core industry of the country,” Koo Sung-chul in charge of LGU+’s wired network business said in a statement on April 21. <>

Sandra K. Helsel, Ph.D. has been researching and reporting on frontier technologies since 1990. She has her Ph.D. from the University of Arizona.

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