title: How does an end user get their certificates in Hyperledger Fabric?
body: <p>I am new to hyperledger and have been reading the documentation and playing around with the sample codes. I am a bit confused on how the registration/enrollement/authentication of new users is done in hyperledger. I hope someone could clarify these points for me:</p>
  
  <ol>
  <li><p>After a user is registered by an Admin. How does the user receive the password (i.e. secret) and the private signing certificates? (Assuming the user does not belong to the network and only interact with hyperledger through an SDK application). </p></li>
  <li><p>If the user is already enrolled by an Admin (i.e. the secret and username have been stored in the network) how can he/she change their password?</p></li>
  </ol>
  
  <p>I appreciate the help.</p>
  
  <p>Thanks!</p>