SK Telecom has applied its quantum-safe system to Deutsche Telekom's trial network, the company has announced.
The South Korean telco's quantum-safe system consists of quantum key distribution, quantum random number generator, and an operating system.
The company said it will apply the security system to parts of its German counterpart's commercial network by 2019 and collaborate on businesses in Europe.
SK Telecom also clinched a 10 billion won ($8.9 million) deal with the US's QuantumXchange to supply its quantum safe system.
The company bought a majority stake in Swiss-based quantum-safe firm IDQ in February this year and said the technology will ensure secure networks in the coming 5G era.
The global quantum cryptography communications market will grow to be worth $24.75 billion in 2025, according to Market Research Media.
SK Telecom formed its quantum technology research lab in 2011 and first applied the technology in an LTE network in South Korea in 2016.
The telco will propose a global standard for quantum random number generator, together with IDQ, Florida Atlantic University, and QuantumXchange, to ITU in August, it said.
South Korean telcos are preparing a slew of services for 5G as well as beefing up security.
SK Telecom this week has also launched a home-to-car AI service with Hyundai in South Korea that will allow customers at home to start cars via speakers.
KT has applied blockchain to its commercial network that will beef up security, it said.
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