SK Telecom will showcase a wide range of next-generation quantum cryptography technologies to address security threats in the AI and 6G era.

SKT is participating in Quantum Korea 2026, held at Dongdaemun Design Plaza (DDP) in Seoul from July 2 for three days, and is unveiling advanced technologies and solutions under the theme of next-generation quantum cryptography security for the AI and 6G era. Quantum Korea is the country’s largest quantum industry exhibition hosted by the Ministry of Science and ICT.

At the exhibition, SKT will present next-generation technologies that go beyond the limits of existing technologies, including photonic integrated circuit (PIC)-based quantum key distribution (QKD), PIC-based quantum random number generators (QRNG), and wireless and satellite QKD.

SKT implemented a high-performance 10 Gbps-class QRNG on an ultra-compact chip measuring 10 mm by 10 mm. It is also developing an integrated QKD chip that combines the transmitter and receiver with the optical system. In addition, it is developing QKD that can be applied to long-distance wireless communications over 30 km on the ground. SKT plans to advance the technology so it can eventually be mounted on satellites.

It also unveiled device-tailored security solutions Q-HSM and Q-SSE. Q-HSM is a hybrid single chip that combines QRNG, post-quantum cryptography (PQC), conventional cryptography and physical unclonable function (PUF) technology. It applied quantum cryptography to edge devices connected to 6G networks, including drones, AI CCTV and robots.

Q-SSE is a solution that supports the secure use of large language model (LLM) services based on zero-trust access control.

SKT will use the exhibition as an opportunity to target quantum security demand in defence and public sectors. It will strengthen cooperation with government agencies such as the Ministry of Science and ICT and the Defense Acquisition Program Administration to expand the domestic quantum technology ecosystem.

At the opening ceremony, Ryu Tak-ki (류탁기), head of network technology at SKT, received a citation for contributions to the development of quantum science and technology (a citation from the deputy prime minister and minister of science and ICT). Ryu was recognised for leading domestic and international quantum technology exchanges and the convergence of security technologies, including serving as the representative chair of the Future Quantum Convergence Forum.

Ryu said, "We will continue to lead the development and commercialisation of quantum technology and keep playing a pivotal role at the centre of the global quantum industry ecosystem."