/// <summary>Verify</summary>
        /// <param name="jwtAssertion">string</param>
        /// <param name="iss">client_id</param>
        /// <param name="aud">Token2 EndPointのuri</param>
        /// <param name="scopes">scopes</param>
        /// <param name="jobj">JObject</param>
        /// <param name="jwkPublicKey">RS256用のJWK公開鍵</param>
        /// <returns>検証結果</returns>
        public static bool Verify(string jwtAssertion,
                                  out string iss, out string aud, out string scopes, out JObject jobj, string jwkPublicKey)
        {
            RsaPublicKeyConverter rpkc = new RsaPublicKeyConverter();

            return(JwtAssertion.Verify(jwtAssertion,
                                       out iss, out aud, out scopes, out jobj,
                                       rpkc.JwkToParam(jwkPublicKey)));
        }