SEOUL, April 22 (AJP) - A research team led by Professor Lee Ok-yeon at Kookmin University in South Korea has successfully implemented and verified a next-generation security system that combines low Earth orbit satellite communication with quantum-resistant cryptography. Working alongside Arion Communication, the team developed a hybrid structure designed to protect data across both wired and wireless connections.
The technology integrates Quantum Key Distribution (QKD) for ground-based networks and Post-Quantum Cryptography (PQC) for wireless satellite links. This hybrid approach is designed to counter security threats posed by future quantum computers. It specifically addresses the risk of hackers collecting encrypted data today to unlock it later, a threat known as harvest-now-decrypt-later.
During the demonstration, Kookmin University (KMU) researchers verified end-to-end encryption across a satellite link using the Iridium constellation. The team successfully ensured that KMU cryptographic modules were fully compatible with the TYTO series equipment from Arion. This verification moves the technology beyond a basic proof of concept and into a pilot stage for broader use.
Beyond technical validation, the demonstration shows the potential for creating a sovereign security infrastructure that remains stable during disasters or military conflicts. KMU plans to expand the use of these systems to national defense networks, satellite-based battlefield communications, and unmanned vehicle operations.
The university is now focusing on building a cooperation hub to bridge the gap between research and commercial markets. This initiative will provide a platform for private companies to test and certify their security technologies while helping to build a domestic industrial ecosystem.
"Quantum security technology is not just about individual functions or performance; the core lies in demonstration and ensuring interoperability based on hybrid implementation technology," Professor Lee Ok-yeon said, adding: "I will accelerate the establishment of a Quantum Campus that covers water, land, air, and space by converging quantum security technologies such as PQC, QKD, and QRNG with satellite communications."
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