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ITU-T X.1711 (03/2026)

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Framework of quantum key distribution (QKD) protocols in QKD networks
Recommendation ITU-T X.1711 specifies the framework of quantum key distribution (QKD) protocols in the quantum layer of a QKD network (QKDN). In a QKDN, QKD protocols instruct the QKD modules operating over the QKD link to produce QKD-keys via the quantum communication stage and the key distillation stage. This Recommendation gives an overview of QKD protocols in the quantum layer, specifies the QKD protocol architecture and introduces the operation of QKD protocols in general, which forms a framework for QKD protocols in QKDNs.
Citation: https://handle.itu.int/11.1002/1000/16739
Series title: X series: Data networks, open system communications and security
  X.1700-X.1749: Quantum communication
  X.1705-X.1749: Quantum Key Distribution Network (QKDN)
Approval date: 2026-03-16
Provisional name:X.sec_QKD_profr
Approval process:AAP
Status: In force
Maintenance responsibility: ITU-T Study Group 17
Further details: Patent statement(s)
Development history
[5 related work items in progress]