RFC Errata
RFC 8152, "CBOR Object Signing and Encryption (COSE)", July 2017
Source of RFC: cose (sec)See Also: RFC 8152 w/ inline errata
Errata ID: 5545
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Francesca Palombini
Date Reported: 2018-11-05
Verifier Name: Benjamin Kaduk
Date Verified: 2019-01-16
Section 7.1 says:
+---------+-------+----------------+------------+-------------------+
| Name | Label | CBOR Type | Value | Description |
| | | | Registry | |
+---------+-------+----------------+------------+-------------------+
| kty | 1 | tstr / int | COSE Key | Identification of |
| | | | Common | the key type |
| | | | Parameters | |
| | | | | |
| kid | 2 | bstr | | Key |
| | | | | identification |
| | | | | value -- match to |
| | | | | kid in message |
| | | | | |
| alg | 3 | tstr / int | COSE | Key usage |
| | | | Algorithms | restriction to |
| | | | | this algorithm |
| | | | | |
| key_ops | 4 | [+ (tstr/int)] | | Restrict set of |
| | | | | permissible |
| | | | | operations |
| | | | | |
| Base IV | 5 | bstr | | Base IV to be |
| | | | | xor-ed with |
| | | | | Partial IVs |
+---------+-------+----------------+------------+-------------------+
Table 3: Key Map Labels
It should say:
+---------+-------+----------------+------------+-------------------+
| Name | Label | CBOR Type | Value | Description |
| | | | Registry | |
+---------+-------+----------------+------------+-------------------+
| kty | 1 | tstr / int | COSE Key | Identification of |
| | | | Types | the key type |
| | | | | |
| | | | | |
| kid | 2 | bstr | | Key |
| | | | | identification |
| | | | | value -- match to |
| | | | | kid in message |
| | | | | |
| alg | 3 | tstr / int | COSE | Key usage |
| | | | Algorithms | restriction to |
| | | | | this algorithm |
| | | | | |
| key_ops | 4 | [+ (tstr/int)] | | Restrict set of |
| | | | | permissible |
| | | | | operations |
| | | | | |
| Base IV | 5 | bstr | | Base IV to be |
| | | | | xor-ed with |
| | | | | Partial IVs |
+---------+-------+----------------+------------+-------------------+
Table 3: Key Map Labels
Notes:
The value registry for kty should be COSE Key Types, as indicated in the text following Table 3. This change affects the IANA registry: https://www.iana.org/assignments/cose/cose.xhtml#key-common-parameters