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RFC 9679: CBOR Object Signing and Encryption (COSE) Key Thumbprint

In plain English — editorial summary, not part of the RFC

This specification defines a method for computing a hash value over a CBOR Object Signing and Encryption (COSE) Key. It specifies which fields within the COSE Key structure are included in the cryptographic hash computation, the process for creating a canonical representation of these fields, and how to hash the resulting byte sequence. The resulting hash value, referred to as a "thumbprint", can be used to identify or select the corresponding key.

Document record

Document ID
RFC9679
Published
December 2024
Authors
K. Isobe; H. Tschofenig; O. Steele
Status
PROPOSED STANDARD
Stream
IETF
Area
sec
Pages
13
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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

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canonical URL: /rfc/9679-cbor-object-signing-and-encryption-cose-key-thumbprint