title: How secure is proguard against reverse engineering?
body: <p>I will be working with very sensitive data in an app. Obfuscation by my definition is not added security, it will only delay the cracker with finite time. Is it possible that Proguard does this so well it may be called added security? </p>
  
  <p>What is most sensitive are some network calls. It will be hard to sniff the password because we will generate the password on both sides and check it's validity with timestamps. Problem is the app may be reverse engineered and the generate algorithm may be exploited. </p>
  
  <p>It is not possible to keep the algorithm locally in a file because with a rooted phone the cracker may be able to retrieve it. It does not work to download the algorithm from the server because the same problem applies here, if the cracker reverse engineer the app he/she will be able to see where the algorithm is taken from.</p>
  
  <p>Any input on how to proceed is greatly appreciated! </p>
  
  <p><strong>Edit</strong></p>
  
  <p>What I am trying to protect is the generate algorithm so the cracker may not send a lot of data to our server.</p>