Well ... I think I sorted some of this out... maybe.
by going to this endpoint: https://-baseEndPoint-/oxauth/restv1/jwks
	
I get a list of keys like this:
	
	`{"keys": [
    {
        "kid": "21c9826c-78ea-47bd-a68b-b2f670d895a0",
        "kty": "RSA",
        "use": "sig",
        "alg": "RS256",
        "exp": 1574294666669,
        "n": "oA6icZNRvHdBAcSBy...B0hw",
        "e": "AQAB",
        "x5c": ["MIIDBDCCAeygAwIB...pKXnUf/fs="]
    }, ...`
	
Which gives me keyId & keyAlg.  I am guessing that x5c is the "privateKey"?
	
I am not confident about any of this because... why would I enter all of these manually in the config when the app can easily collect them from the url endpoint?