IDEMIA Secure Transactions, together with South Korean telecom operator KT, is beginning testing of post-quantum protection for military communications systems. The initiative marks a transition from theoretical research in the field of quantum cryptography to practical solutions at the hardware level.
The key feature of the project is the implementation of cryptographic algorithms directly on the SIM platform. It uses both post-quantum algorithms standardized by the US National Institute of Standards and Technology (NIST) and Korean national developments. This hybrid approach ensures compatibility with international requirements while maintaining sovereignty over critical technologies.
The scale of the pilot goes beyond communications
KT's pilot program is not limited to secure communications. Testing will cover a wide range of infrastructure: computers, video surveillance systems, unmanned aerial vehicles, and 5G networks. This points to the comprehensive nature of the initiative — post-quantum protection is viewed as an end-to-end standard for all critical infrastructure, rather than a point solution for individual channels.
The relevance of the project is driven by accelerating progress in the field of quantum computing. Existing asymmetric cryptography algorithms, which underpin modern data protection standards, are theoretically vulnerable to quantum attacks. For defense systems, this creates a risk of long-term compromise — data intercepted today could be decrypted in the future.
Integrating post-quantum algorithms into SIM cards solves the migration problem: replacing software on millions of devices requires significant resources, whereas updating SIM modules provides hardware-protected cryptography without a complete rebuild of infrastructure. The defense sector is becoming a testing ground for technologies that can subsequently be scaled to civilian networks.
Cryptalist analysis: The IDEMIA and KT initiative reflects the emerging trend toward "quantum readiness" of telecom infrastructure, where defense contracts act as a driver for the adoption of post-quantum standards. For the market, this is a signal of the transition from the NIST standardization stage to the commercial deployment phase, which creates preconditions for growth in demand for secure SIM platforms and hardware security modules. The success of the pilot could accelerate the adoption of post-quantum solutions by operators worldwide.