My task is to set up keycloak as an authentication endpoint for an external app in Salesforce (SF is being managed by another company). Salesforce is responsible for generating a signed JWT (with a given certificate), which it then sends to keycloak to obtain a valid access token.
To implement this, I received a certificate and a JKS with a PrivateKeyEntry. The current issue is the “kid” parameter in the header of the generated token, which specifies the correct key id . This key id however cannot be found by Keycloak.
Error Message:
[org.keycloak.keys.infinispan.InfinispanPublicKeyStorageProvider] (executor-thread-93) PublicKey wasn't found in the storage. Requested kid: 'KEY_ID' . Available kids: '[9ABAWiSDn7yWJ1XwsXse7yUeEYx0abMVBXlq-0SvKAs]'