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Liaison statement
Liaison to SG17

Additional information about IETF liaison relationships is available on the IETF webpage and the Internet Architecture Board liaison webpage.
State Posted
Submitted Date 2019-06-28
From Group tls
From Contact Christopher A. Wood
To Group ITU-T-SG-17
To Contacts
Cc Transport Layer Security Discussion List <>
Scott Mansfield <>
Sean Turner <>
Benjamin Kaduk <>
Christopher Wood <>
Joseph Salowey <>
Roman Danyliw <>
Benjamin Kaduk
Eric Resorla
Response Contact Christopher Wood <>
Joseph Salowey <>
Sean Turner <>
Technical Contact
Purpose For information
Attachments (None)
Liaisons referred by this one LS on SG17 work item X.ibc-iot: Security framework for using Identity Based Cryptography for IoT services over telecom networks
Thank you for the LS concerning SG17’s work item X.ibc-iot [1].  As you are no
doubt aware, the TLS WG and the IANA TLS Designated Experts worked with the
X.ibc-iot authors, who also are authors of
draft-wang-tls-raw-public-key-with-ibc [2], to register four TLS Signature
Schemes: eccsi_sha256, ibs1_sha256, ibs2_sha256, sm9_ibs_sm3.  These values can
be found in the IANA TLS Signature Scheme registry [3].

We would like to thank those authors for working through the IETF process by 1)
modifying their draft to add ibs1_sha256, ibs2_sha256, and sm9_ibs_sm3 so that
all of the requested values from X.ibc-iot were included, 2) presenting their
draft to the TLS WG at IETF 104, 3) resolving comments from the WG and the
Designated Experts, and 4) for their patience throughout this process.