title: How does collectd secure data?
body: <p>I like to transmit data from multiple sources to one target collectd server, but I'm not sure, how to ensure, that at the same time:</p>
  
  <ol>
  <li>data is encrypted, i.e. no need to trust the network</li>
  <li>data is signed, i.e. the target can trust the sources</li>
  <li>no source shares the credentials with other sources</li>
  </ol>
  
  <p>However, in the <code>network</code> plugin, so far I found only the values <code>sign</code> or <code>encrypt</code> for <code>SecurityLevel</code>, but not both. And it seems, that I cannot have different credentials (<code>Username</code> + <code>Password</code>) for different sources. Maybe I just misunderstood collectd?</p>