RFC020 Authorization credential extension
Last updated
Last updated
An assuranceLevel
field is added to the NutsAuthorizationCredential
. It can be used inside a resource
to indicate the required assurance level of the authentication.
This RFC is an addition to the means listed in RFC014
This document is currently in draft.
This document is released under the Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license.
A resource server should be able to provide information about the authentication assurance level that is used to access resources. With the introduction of RFC019 an authentication means with a low assurance level has been introduced. This authentication means should not be used on resources that require a high assurance level. An additional field in the NutsAuthorizationCredential allows a resource server to indicate which level of assurance it requires.
Authorization server: The application that evaluates access token requests and creates access tokens.
Resource server: The application that requires authorized access to its APIs.
The additional field is called assuranceLevel
. It MUST contain one of the following values: low
, substantial
or high
. The field is optional. When present it COULD be used by the authorization server to verify the access token request. The field is located within a resource. A resource is located in the resources
list. If set, userContext
SHOULD be true
. If userContext
is set to true
and assuranceLevel
is not set, it defaults to low
.
The following example shows the location of the new field, other fields have been omitted for brevity:
Nuts foundation
W.M. Slakhorst
Request for Comments: 020
Nedap
Amends: RFC014
April 2023