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Work item:
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YSTR.QKDN-sms
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Subject/title:
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Technical elements of secure multicast support in QKDN based on trusted relay
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Status:
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Under study
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Approval process:
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Agreement
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Type of work item:
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Technical report
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Version:
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New
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Equivalent number:
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-
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Timing:
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2027-03 (Medium priority)
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Liaison:
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ITU-T SG11, SG17, ETSI ISG QKD, IETF
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Supporting members:
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State Grid Corporation of China (SGCC), Beijing University of Posts and Telecommunications, China Telecom
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Summary:
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Multicast technology offers high-concurrency and low-latency data transmission, enabling a single message or data stream to be delivered simultaneously to multiple receiving endpoints. It is widely used in typical application scenarios such as video conferencing, information subscription and distribution, and the issuance of bulk control commands.
However, multicast also introduces complex security challenges. First, the key distribution mechanisms that current secure multicast frameworks rely on become vulnerable in the era of quantum computing. Therefore, secure multicast services in the future will require the support of QKDN to achieve quantum-resistant protection for data transmission. In addition, multicast has several unique characteristics that make it difficult for existing QKDN standards, which are still predominantly based on pairwise key distribution models, to efficiently meet its security requirements.
In light of these challenges, this proposal aims to study the technical elements needed for QKDN to support secure multicast services, with the goal of facilitating the secure development of multicast services in the quantum era.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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First registration in the WP:
2025-07-30 15:24:38
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Last update:
2025-07-30 15:37:57
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