[Id-event] RFC 9493 on Subject Identifiers for Security Event Tokens

A new Request for Comments is now available in online RFC libraries.

        RFC 9493

        Title:      Subject Identifiers for Security Event Tokens 
        Author:     A. Backman, Ed.,
                    M. Scurtescu,
                    P. Jain
        Status:     Standards Track
        Stream:     IETF
        Date:       December 2023
        Mailbox:    richanna@amazon.com,
                    marius.scurtescu@coinbase.com,
                    prachi.jain1288@gmail.com
        Pages:      18
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-secevent-subject-identifiers-18.txt

        URL:        https://www.rfc-editor.org/info/rfc9493

        DOI:        10.17487/RFC9493

Security events communicated within Security Event Tokens may support
a variety of identifiers to identify subjects related to the event.
This specification formalizes the notion of Subject Identifiers as
structured information that describes a subject and named formats
that define the syntax and semantics for encoding Subject Identifiers
as JSON objects.  It also establishes a registry for defining and
allocating names for such formats as well as the JSON Web Token (JWT)
"sub_id" Claim.

This document is a product of the Security Events 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
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the 
standardization state and status of this protocol.  Distribution of this 
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