YD/T 6705-2026Technical specification for trusted relay node in quantum key distribution network (English PDF)

YD/T 6705-2026 is the English-translated version of 量子密钥分发（QKD）网络 可信中继节点技术要求.

The document sets out technical requirements for trusted relay nodes in quantum key distribution (QKD) networks. It covers the system architecture of the node, its key functions and processes, key interfaces and technical requirements, and security requirements, among other content. It applies to the design and development of trusted relay nodes in QKD networks.

It is intended for developers and manufacturers of QKD equipment and relay nodes, network operators building quantum secure communication networks, and security evaluators and test laboratories who assess such nodes. YD/T 6705-2026 is a voluntary standard (code with /T). It was approved and issued by the Ministry of Industry and Information Technology on 11 March 2026, was prepared under the China Communications Standards Association, and takes effect on 1 June 2026. Readers who need the full architecture, interface and security provisions will find them in the translated text.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 22 pages — is available in the English PDF.

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