openid / openid/OpenID4VCI

`interaction_types_supported` should probably be a metadata param and a request param; currently it is the latter only

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Since Oct 24, 2025.

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Description

When reading the IAR section, it says the following:

interaction_types_supported: REQUIRED. Comma-separated list of strings indicating the types of interactions that the Authorization Server supports. The order of the values is not significant. The following values are defined by this specification:

openid4vp_presentation: Indicates that the Authorization Server supports an OpenID4VP Presentation interaction, as defined in Section 6.2.1.1.
redirect_to_web: Indicates that the Authorization Server supports a redirect to a web-based interaction, as defined in Section 6.2.1.2.

This section relates to the IAR request parameter (the Wallet provides), not to the AS metadata, hence should be updated accordingly as follows:

interaction_types_supported: REQUIRED. Comma-separated list of strings indicating the types of interactions that the Wallet supports. The order of the values is not significant. The following values are defined by this specification:

openid4vp_presentation: Indicates that the Wallet supports an OpenID4VP Presentation interaction, as defined in Section 6.2.1.1.
redirect_to_web: Indicates that the Wallet supports a redirect to a web-based interaction, as defined in Section 6.2.1.2.

Additionally, the original text above should be moved to a dedicated AS metadata section and registered with IANA.

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