title: Cassandra dynamic user permissions management
body: <p>My question is whether Cassandra enables the below described scenario out-of-the-box.</p>
  
  <p>The scenario:</p>
  
  <ol>
  <li>Data owner - a "super-user" who wants to share some data in Cassandra with other users.</li>
  <li>End user - a regular user who requests access to some subset of data</li>
  <li>Cloud provider - hosts the Cassandra data store on behalf of the Data owner.</li>
  </ol>
  
  <p>I know it is possible to define some restrictions on accessing data using configuration files (<a href="http://www.datastax.com/docs/1.2/configuration/authentication" rel="nofollow">see reference</a>). My question is if it is possible to dynamically allow the Data owner to update those access rights (e.g. add/remove users to the access list) by remotely contacting the Cassandra cluster?</p>