LS on work progress on Quantum Key Distribution (QKD) network in SG13 (as of July 2021)
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Response to LS on work progress on Quantum Key Distribution (QKD) network in SG13
ITU-T SG13 is pleased to inform you of our progress on Quantum Key Distribution (QKD) topics. As we informed you, SG13 has published 5 Recommendations on QKDN as follows: - Recommendation ITU-T Y.3800 “Overview on networks supporting quantum key distribution”; - Recommendation ITU-T Y.3801 “Functional requirements for quantum key distribution networks”; - Recommendation ITU-T Y.3802 “Quantum key distribution networks – Functional architecture”; - Recommendation ITU-T Y.3803 “Quantum key distribution networks – Key management”; - Recommendation ITU-T Y.3804 “Quantum key distribution networks - Control and management”. In the SG13 RGM (virtual meeting, 5-16 July 2021), Q16/13 has made progress of the following work items. 1. The item agreed after the March 2021 SG13 meeting The draft Supplement 70 to Y.3800-series was agreed. Supplement 70 to Y.3800-series (Y.supp.QKDN-mla) “Quantum Key Distribution Networks - Applications of Machine Learning” in TD597/WP3 For quantum key distribution networks (QKDN), the supplement presents the applications of machine learning (ML) in the quantum layer, the key management layer and the management and control layers of QKDN including the use case background, issue, role of ML in QKDN, use case analysis and, benefits and impact. 2. The item consented after the March 2021 SG13 meeting The drat Recommendation ITU-T Y.3805 was consented. Draft Recommendation ITU-T Y.3805 (Y.QKDN_SDNC) “Quantum Key Distribution Networks - Software Defined Networking Control” in TD598/WP3 The Recommendation specifies the requirements, functional architecture, reference points, hierarchical SDN controller and overall operational procedures of SDN control. 3. Revised on-going work items Draft Recommendation ITU-T Y.QKDN_BM “Quantum Key Distribution Networks - Business role-based models” in TD600/WP3 Draft Recommendation ITU-T Y.QKDN_BM describes business roles, business role-based models, and service scenarios in Quantum Key Distribution Network (QKDN) from different deployment and operation perspectives with existing user networks for supporting secure communications in various application sectors. This draft Recommendation can be used as a guideline for applying QKDN from business point of views as well as for deployment and operation of QKDN from telecom operators’ point of views. Draft Recommendation ITU-T Y.QKDN_frint “Framework for integration of QKDN and secure network infrastructures” in TD601/WP3 For quantum key distribution networks (QKDN), Recommendation ITU-T Y.QKDN_frint specifies overview of secure storage networks (SSNs). It also specifies functional requirements, functional architecture model, reference points and operational procedures phase-in scenarios for SSNs. Y.QKDN-BM and Y.QKDN-frint are candidates for consent at the December 2021 SG13 meeting. 4.New work items agreed at the July 2021 SG13 RGM Draft Recommendation ITU-T Y.QKDN-iwfr “Quantum key distribution networks - interworking framework” in TD604/WP3 This Recommendation specifies a framework for interworking QKDNs. Draft Recommendation ITU-T Y.QKDN-ml-fra “Quantum key distribution networks - Functional requirements and architecture for machine learning” in TD607/WP3 QKDN is expected to be able to maintain the stable operation and meet various cryptographic application requirements in an efficient way. Due to the advantages of machine learning (ML) related to automatic learning, ML can help to overcome the challenges of QKDN in terms of quantum layer performance, key management layer performance and QKDN control and management efficiency. Based on the functional requirements and architecture of QKDN in [ITU-T Y.3801] and [ITU-T Y.3802], this recommendation is to specify the overview, functional requirements, and functional architecture model of ML in QKDN. Draft Recommendation ITU-T Y.QKDN-rsfr “Quantum key distribution networks - resilience framework” in TD608/WP3 Resilience is necessary to be introduced into QKDN to guarantee stable running of QKDN and the continuous key supply. Based on the functional requirements of QKDN in [ITU-T Y.3801] and functional architecture of QKDN in [ITU-T Y.3802], this recommendation is to specify the framework of resilience in QKDN including typical scenarios of resilience as well as requirements of resilience supported in quantum layer, key management layer, and control and management layer, respectively. QKDN resilience use cases considered in this recommendation include network resources reservation, network resources recovery and alternative schemes such as re-routing. Draft Supplement ITU-T Y.supp.QKDN-roadmap “Standardization roadmap on Quantum Key Distribution Networks” in TD609/WP3 This supplement presents a comprehensive list of activities (work items) within the ITU-T associated with QKDN. The scope of the list includes both study groups and focus groups. The list will reflect the status of the work item, as well as the date of approval. This document will be updated periodically. 5. Conclusion SG13 will study the network aspects of QKD. Q16/13 looks forward to close cooperation with ITU-T SG2, SG11, SG15, SG17, ETSI ISG-QKD, ISO/IEC JTC1/SC27, AG4, IETF/IRTF, and relevant groups for future standardization on QKD networks. Attachments: 1) The Supplement 70 to Y.3800 series (Y.supp.QKDN-mla) (TD597/WP3), Quantum Key Distribution Networks - Applications of Machine Learning; 2) The draft Recommendation ITU-T Y.3805 (Y.QKDN_SDNC) (TD598/WP3), Quantum Key Distribution Networks - Software Defined Networking Control; 3) The updated draft Recommendation ITU-T Y.QKDN_BM (TD600/WP3), Quantum Key Distribution Networks - Business role-based models; 4) The updated draft Recommendation ITU-T Y.QKDN_frint (TD601/WP3), Framework for integration of QKDN and secure network infrastructures; 5) The initial draft Recommendation ITU-T Y.QKDN-iwfr (TD604/WP3), Quantum key distribution networks - interworking framework; 6) The initial draft Recommendation ITU-T Y.QKDN-ml-fra (TD607/WP3), Quantum key distribution networks - Functional requirements and architecture for machine learning; 7) The initial draft Recommendation ITU-T Y.QKDN-rsfr (TD608/WP3), Quantum key distribution networks - resilience framework; 8) The initial draft Supplement ITU-T Y.supp.QKDN-roadmap (TD609/WP3), Standardization roadmap on Quantum Key Distribution Networks.