The steps below summarizes how to configure the Token Server as OpenID Provider.

Configure JWT Keys for signing

Token Server allows to configure the algorithm and keys used for calculating digital signature of the ID Token.

JWT Key configuration

Field Required Example value Details
Discovery URL Read-only URL to Discovery endpoint
Signing algorithm Yes RS256: RSASSA-PKCS1-v1_5 using SHA-256 (default) The algorithm used for generating digital signature in JWT
Next key Read-only db5aac2e-504b-4845-8900-4d64d2afd3ad Identifier of the Next key
Current key Read-only 59b04937-7a12-4ff7-9d27-67b55637da9f Identifier of the Current key. This is the identifier referenced in KID field of the currently issued ID Tokens.
Previous key Read-only a1328084-d75d-4ea7-a734-fe5257a5faff Identifier of the Previous key. This field is empty upon initial creation of the keys.

The Next key and Current key are generated during initial application startup.

For security reasons it is advised to periodically change the keys used for the digital signature. To ensure that the Relying Party is able to validate the signature of the ID Tokens issued prior to key change, the Token Server provides the following key rotation mechanism: upon clicking Rotate Keys button, the Current key becomes the Previous key, the Next key becomes the Current key and a new Next key is generated.

When modifying the algorithm, it requires the change of the underlying keys. As part of the change, the keys are rotated in a slightly different way: the Current key becomes the Previous key and two new keys are generated - the Current key and the Next key.

Signing algorithm

For those algorithms that make use of RSA key it is possible to configure the strength of the key using following property:


The minimum RSA strength is 2048 bits

Web Client

Enable OpenID compliant grant type - either Authorization Code or Implicit.

Enable OpenID Connect by adding openid scope to either Default Scopes or Additional Scopes and configure OpenID specific settings as described in Enabling OpenID Connect capability.

Identity Provider

A Relying Party may request additional claims as specified in OpenID Connect scopes. To enable the Token Server capability to retrieve these information it is required to enable User Info as described in Configure User Info Endpoint for Identity Provider associated with the web client.