RFC 9921

CBOR Object Signing and Encryption (COSE) Header Parameter for Timestamp Tokens as Defined in RFC 3161, February 2026

File formats:

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Also available: XML file for editing
 
Status:
PROPOSED STANDARD
Authors:
H. Birkholz
T. Fossati
M. Riechert
Stream:
IETF
Source:
cose (sec)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC9921

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Abstract

This document defines two CBOR Object Signing and Encryption (COSE) header parameters for incorporating timestamping based on RFC 3161 into COSE message structures (COSE_Sign and COSE_Sign1). This enables the use of established timestamping infrastructure per RFC 3161 in COSE-based protocols.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.




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