add guidance on kid

[Sakurann]

should align with PR #144 better

issue #117.

• add pointer to the guidance on kid in rfc7515.
• clarify that kid can be present only in the header.
• mandate kid when DIDs are used (need to add reference to a DID-Core)

---

Preview | Diff

[iherman]

The issue was discussed in a meeting on 2023-09-14

• no resolutions were taken

View the transcript

#### 6.4. add guidance on kid (pr vc-jose-cose#153) _See github pull request [vc-jose-cose#153](https://github.com/w3c/vc-jose-cose/pull/153)._ **Michael Jones:** similarly simple. this simplifies one sentence and adds another one. kid must be present when issuer is expressed as a DID. � 6 approvals no objections. **Manu Sporny:** i think current text as-is is probably ok, except 2 things - we still have an issue in core data model. does not say what is the value of kid, tho seems to assume it is a DID. some assume it is a relative DID. other implementers put absolute DIDs. probably need to specify which one. � this seem to assume absolute DID with an entire DID. **Michael Jones:** from a conversation earlier where we agreed that kid is a string. so intentionally not making a decision. **Kristina Yasuda:** there is a separate issued on absolute vs relative DID. � the purpose is to address the issue in another PR. **Joe Andrieu:** calling it DID URL is better. will make a suggestion.

[OR13]

@Sakurann I applied a few small suggestions, but this question remains: https://github.com/w3c/vc-jose-cose/pull/153#discussion_r1326169335