The Info-communications Media Development Authority (IMDA), supported by the Telecommunications Standards Advisory Committee (TSAC), has released a draft reference specification — IMDA RS SecQKDN Issue 1 (February 2026) — establishing a security framework for Quantum Key Distribution Networks (QKDN).
The draft aligns with the International Telecommunication Union ITU-T X.1710 standard and defines security requirements across five layers: quantum infrastructure, key management, control, management, and service interfaces.
Key Impacts
The proposal introduces strengthened requirements for:
- Tamper-resistant hardware and HSMs, including electromagnetic shielding for trusted nodes
- Protection against quantum side-channel attacks (e.g., detector blinding, Trojan-horse attacks)
- Secure communication protocols, such as TLS 1.3 or IPSec
- Firmware integrity and supply chain security to prevent backdoor risks
As the document is under public consultation, requirements may evolve before final adoption. However, manufacturers of QKD modules and network equipment should already assess potential impacts on product design and future market access in Singapore.
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