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RFC 9118
Title: Enhanced JSON Web Token (JWT) Claim Constraints
for Secure Telephone Identity Revisited (STIR)
Certificates
Author: R. Housley
Status: Standards Track
Stream: IETF
Date: August 2021
Mailbox: hous...@vigilsec.com
Pages: 12
Updates: RFC 8226
I-D Tag: draft-ietf-stir-enhance-rfc8226-05.txt
URL: https://www.rfc-editor.org/info/rfc9118
DOI: 10.17487/RFC9118
RFC 8226 specifies the use of certificates for Secure Telephone
Identity Credentials; these certificates are often called "Secure
Telephone Identity Revisited (STIR) Certificates". RFC 8226 provides
a certificate extension to constrain the JSON Web Token (JWT) claims
that can be included in the Personal Assertion Token (PASSporT), as
defined in RFC 8225. If the PASSporT signer includes a JWT claim
outside the constraint boundaries, then the PASSporT recipient will
reject the entire PASSporT. This document updates RFC 8226; it
provides all of the capabilities available in the original
certificate extension as well as an additional way to constrain the
allowable JWT claims. The enhanced extension can also provide a list
of claims that are not allowed to be included in the PASSporT.
This document is a product of the Secure Telephone Identity Revisited Working
Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
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