Liaison statement
LS on PQC transition for RFC 6509

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State Posted
Submitted Date 2025-10-30
From Group 3GPP-TSG-SA-WG3
From Contact Zander Lei <lei.zhongding@huawei.com>
To Group SEC
To Contacts Paul Wouters <paul.wouters@aiven.io>
Deb Cooley <debcooley1@gmail.com>
Cc Deb Cooley <debcooley1@gmail.com>
Charles Eckel <eckelcu@cisco.com>
The IETF Chair <chair@ietf.org>
Paul Wouters <paul.wouters@aiven.io>
Response Contact 3GPP Liaisons Coordinator <3GPPLiaison@etsi.org>
Peter Schmitt <Peter.Schmitt@huawei.com>
Purpose For action
Deadline 2025-11-14 Action Taken
Attachments LS on PQC transition for RFC 6509
Liaisons referring to this one Reply to LS on PQC transition for RFC 6509
Body 
1       Overall description

3GPP SA3 has started a study on “Transitioning to Post Quantum Cryptography
(PQC) in 3GPP”. This is to prepare the PQC transition for security protocols
used in 3GPP systems. 3GPP SA3 has identified that the MIKEY-SAKKE protocol,
which is used in 3GPP systems to transport cryptographic keys securely for
Mission Critical Services, is specified in the IETF RFC 6509. Since it employs
asymmetric cryptography for key distribution and may be vulnerable to quantum
computing, SA3 would like to know whether there is any plan for IETF to update
the RFC 6509 using PQC. If yes, SA3 appreciate if IETF can provide estimated
timeline for the protocol update.

2       Actions
To IETF SEC Area
ACTION:         SA3 kindly request IETF to provide feedback on the question
above.

3       Dates of next TSG SA WG 3 meetings
SA3#125 17 – 21 November 2025           Dallas, US
SA3#126 9 – 13 February 2026            India (TBD)