LG Uplus develops quantum cryptography technology to prevent attacks from quantum computers
LG Uplus develops quantum cryptography technology to prevent attacks from quantum computers
  • Jung So-yeon
  • 승인 2021.01.19 12:56
  • 댓글 0
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LG Uplus announced on January 19 that it has developed a "Q-PUF USB", a USB-type security token, containing Post Quantum Cryptography (PQC) technology to prevent attacks from quantum computers. / Courtesy of LG Uplus

LG Uplus announced on January 19 that it has developed a "Q-PUF USB", a USB-type security token, containing Post Quantum Cryptography (PQC) technology to prevent attacks from quantum computers and applied it to its digital New Deal business.

"Q-PUF USB" is a USB security token created by combining ICTK Holdings' hardware security technologies, Physically Unclonable Function (PUF) and Quantum Random Number Generator (QRNG).

In the era of quantum computing, authentication technology that recognizes what to perform encryption communication and verifies that data is not manipulated becomes important.

LG Uplus has developed "Q-PUF USB" by upgrading quantum-resistant algorithms that will solve security threats when authenticating.

Quantum-resistant encryption is an encryption method that uses complex mathematical algorithms that take billions of years to solve using quantum computers. RSA encryption method can be easily solved by quantum computers, so next-generation security technologies such as quantum-resistant encryption are needed.

It can be applied to key elements of security such as cryptographic key exchange, data encryption, and integrity authentication, and can be implemented only with software without any separate equipment.

This allows flexible application from mobile phones to small IoT devices to provide security in all areas of wired and wireless networks.

Meanwhile, LG Uplus is going to use "Q-PUF USB" in its digital new deal business. Last year, while carrying out the government's digital new deal business project, the company has applied the technology to 640 kilometers of an exclusive line connecting LG Innotek's plant in Pyeongrtaek and its data center in the southern port city of Busan as well as an exclusive line used by Eulji Hospital in Seoul and Daejeon.

"We will complete an enhanced end-to-end security system that will completely prevent attacks from quantum computing by expanding quantum-resistant cryptography technology in next-generation 5G services such as remote control and telemedicine," said Koo Sung-chul, in charge of LGU+'s wired network business.


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