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RFC 9970
Title: Connected Identity for Secure Telephone Identity Revisited
(STIR)
Author: J. Peterson,
C. Wendt
Status: Proposed Standard
Stream: IETF
Date: June 2026
Mailbox: [email protected],
[email protected]
Pages: 13
I-D Tag: draft-ietf-stir-rfc4916-update-07
URL: https://www.rfc-editor.org/info/rfc9970
DOI: 10.17487/RFC9970
The Session Initiation Protocol (SIP) Identity header field conveys
cryptographic identity information about the originators of SIP requests.
However, the Secure Telephone Identity Revisited (STIR) framework provides no
means for determining the identity of the called party in a conventional
telephone-calling scenario. This document updates prior guidance on the
"connected identity" problem to reflect the changes to SIP identity that
accompanied STIR. It also considers a revised problem space for connected
identity as a means of detecting calls that have been retargeted to a party
impersonating the intended destination and preventing the spoofing of
mid-dialog or dialog-terminating events by intermediaries or third parties.
This document is a product of the Secure Telephone Identity Revisited Working
Group of the IETF.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and
suggestions for improvements. Distribution of this memo is unlimited.
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