Parameters to support JSON Web Token (JWT) Profile for Oauth 2.0 Authorization Grant based authentication. See https://tools.ietf.org/html/rfc7523 for more details.
Secret version reference containing a PKCS#8 PEM-encoded private key associated with the Client Certificate. This private key will be used to sign JWTs used for the jwt-bearer authorization grant. Specified in the form as: projects/*/secrets/*/versions/*.