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RFC 9781
Title: A Concise Binary Object Representation (CBOR) Tag
for Unprotected CBOR Web Token Claims Sets (UCCS)
Author: H. Birkholz,
J. O'Donoghue,
N. Cam-Winget,
C. Bormann
Status: Standards Track
Stream: IETF
Date: May 2025
Mailbox: [email protected],
[email protected],
[email protected],
[email protected]
Pages: 16
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-rats-uccs-12.txt
URL: https://www.rfc-editor.org/info/rfc9781
DOI: 10.17487/RFC9781
This document defines the Unprotected CWT Claims Set (UCCS), a data
format for representing a CBOR Web Token (CWT) Claims Set without
protecting it by a signature, Message Authentication Code (MAC), or
encryption. UCCS enables the use of CWT claims in environments where
protection is provided by other means, such as secure communication
channels or trusted execution environments. This specification
defines a CBOR tag for UCCS and describes the UCCS format, its
encoding, and its processing considerations. It also discusses
security implications of using unprotected claims sets.
This document is a product of the Remote ATtestation ProcedureS 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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