Verifies a request object, decrypting it where it is a JWE.
jwt, client, clientId, issuer, asBase, profile, keySet and an optional query
jwt
client
clientId
issuer
asBase
profile
keySet
query
a promise of { ok: true, params, alg, encrypted }, or a refusal; it never rejects
{ ok: true, params, alg, encrypted }
Verifies a request object, decrypting it where it is a JWE.