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Messaging Use Cases and Extensions for STIR

Document Type Replaced Internet-Draft (candidate for stir WG)
Authors Jon Peterson , Chris Wendt
Last updated 2021-02-22
Replaced by draft-ietf-stir-messaging
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
plain text htmlized pdfized bibtex
Stream WG state Call For Adoption By WG Issued
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-stir-messaging
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)
This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at:


Secure Telephone Identity Revisited (STIR) provides a means of attesting the identity of a telephone caller via a signed token in order to prevent impersonation of a calling party number, which is a key enabler for illegal robocalling. Similar impersonation is sometimes leveraged by bad actors in the text messaging space. This document considers the applicability of STIR's Persona Assertion Token (PASSporT) and certificate issuance framework to instant text and multimedia messaging use cases, both for messages carried or negotiated by SIP, and for non-SIP messaging.


Jon Peterson
Chris Wendt

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)