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JSON Web Key Sets (JWKS)

Detailed information on the JWKS cryptography component

Component format

The purpose of this component is to load keys from a JSON Web Key Set (RFC 7517). These are JSON documents that contain 1 or more keys as JWK (JSON Web Key); they can be public, private, or shared keys.

This component supports loading a JWKS:

From a local file; in this case, Dapr watches for changes to the file on disk and reloads it automatically.
From a HTTP(S) URL, which is periodically refreshed.
By passing the actual JWKS in the jwks metadata property, as a string (optionally, base64-encoded).

Note

This component uses the cryptographic engine in Dapr to perform operations. Although keys are never exposed to your application, Dapr has access to the raw key material.

A Dapr crypto.yaml component file has the following structure:

apiVersion: dapr.io/v1alpha1
kind: Component
metadata:
  name: jwks
spec:
  type: crypto.dapr.jwks
  version: v1
  metadata:
    # Example 1: load JWKS from file
    - name: "jwks"
      value: "fixtures/crypto/jwks/jwks.json"
    # Example 2: load JWKS from a HTTP(S) URL
    # Only "jwks" is required
    - name: "jwks"
      value: "https://example.com/.well-known/jwks.json"
    - name: "requestTimeout"
      value: "30s"
    - name: "minRefreshInterval"
      value: "10m"
    # Option 3: include the actual JWKS
    - name: "jwks"
      value: |
        {
          "keys": [
            {
              "kty": "RSA",
              "use": "sig",
              "kid": "…",
              "n": "…",
              "e": "…",
              "issuer": "https://example.com"
            }
          ]
        }        
    # Option 3b: include the JWKS base64-encoded
    - name: "jwks"
      value: |
                eyJrZXlzIjpbeyJ…

Warning

The above example uses secrets as plain strings. It is recommended to use a secret store for the secrets, as described here.

Spec metadata fields

Field	Required	Details	Example
`jwks`	Y	Path to the JWKS document	Local file: `"fixtures/crypto/jwks/jwks.json"` HTTP(S) URL: `"https://example.com/.well-known/jwks.json"` Embedded JWKS: `{"keys": […]}` (can be base64-encoded)
`requestTimeout`	N	Timeout for network requests when fetching the JWKS document from a HTTP(S) URL, as a Go duration. Default: “30s”	`"5s"`
`minRefreshInterval`	N	Minimum interval to wait before subsequent refreshes of the JWKS document from a HTTP(S) source, as a Go duration. Default: “10m”	`"1h"`

Cryptography building block

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Last modified May 26, 2023: Update daprdocs/content/en/reference/components-reference/supported-cryptography/json-web-key-sets.md (cbba9263)