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                                              Concise Binary Object Representation (CBOR) Simple Values

   Created
   2013-09-19

   Last Updated
   2026-01-15

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     • CBOR Simple Values

CBOR Simple Values

   Expert(s)

 Carsten Bormann

   Reference
   [RFC8949]

   Available Formats
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   Range  Registration Procedures                                                     Note
   0-19   Standards Action        Assignments should start with value 16 in order to reserve the lower numbers for contiguous blocks (if any).
   32-255 Specification Required

   Value                                             Semantics                                                            Reference
   0-19   Unassigned
   20     False                                                                                           [RFC8949]
   21     True                                                                                            [RFC8949]
   22     Null                                                                                            [RFC8949]
   23     Undefined                                                                                       [RFC8949]
   24-31  Reserved                                                                                        [RFC8949]
   58-255 Unassigned
   59     This value as a map key indicates that the Claim Value is an array of redacted Claim Keys at    [draft-ietf-spice-sd-cwt-06, Section 5.1]
          the same level as the map key. (TEMPORARY - registered 2025-12-16, expires 2026-12-16)
   60-255 Unassigned

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